Portfolio
of
Investments
February
28,
2025
Lifecycle
Index
Retirement
Income
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.9%(a)
FIXED
INCOME—40.1%
30,643,572
Nuveen
Bond
Index
Fund,
Class
W
$
296,936,213
TOTAL
FIXED
INCOME
296,936,213
INFLATION-PROTECTED
ASSETS—10.0%
6,876,152
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
74,056,160
TOTAL
INFLATION-PROTECTED
ASSETS
74,056,160
INTERNATIONAL
EQUITY—14.0%
2,910,000
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
32,242,803
3,001,560
Nuveen
International
Equity
Index
Fund,
Class
W
71,437,119
TOTAL
INTERNATIONAL
EQUITY
103,679,922
SHORT-TERM
FIXED
INCOME—9.9%
7,631,793
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
73,646,798
TOTAL
SHORT-TERM
FIXED
INCOME
73,646,798
U.S.
EQUITY—25.9%
4,642,033
Nuveen
Equity
Index
Fund,
Class
W
192,644,350
TOTAL
U.S.
EQUITY
192,644,350
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$621,024,357)
740,963,443
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.2%
GOVERNMENT
AGENCY
DEBT—0.2%
$1,493,000
Federal
Home
Loan
Bank
(FHLB)
0
.000
%
03/03/25
1,492,477
TOTAL
GOVERNMENT
AGENCY
DEBT
1,492,477
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$1,492,657)
1,492,477
TOTAL
INVESTMENTS—100.1%
(Cost
$622,517,014)
742,455,920
OTHER
ASSETS
&
LIABILITIES,
NET—(0.1)%
(
1,008,030
)
NET
ASSETS—100.0%
$
741,447,890
(a)
Affiliated
fund.
Lifecycle
Index
Retirement
Income
Portfolio
of
Investments
February
28,
2025
(continued)
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
Retirement
Income
Affiliated
investment
companies
$740,963,443
$—
$—
$740,963,443
Short-term
investments
—
1,492,477
—
1,492,477
Total
$740,963,443
$1,492,477
$—
$742,455,920
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—40.1%
27,115,871
Nuveen
Bond
Index
Fund,
Class
W
$
262,752,792
TOTAL
FIXED
INCOME
262,752,792
INFLATION-PROTECTED
ASSETS—10.0%
6,084,684
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
65,532,044
TOTAL
INFLATION-PROTECTED
ASSETS
65,532,044
INTERNATIONAL
EQUITY—12.4%
2,278,059
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
25,240,895
2,347,405
Nuveen
International
Equity
Index
Fund,
Class
W
55,868,245
TOTAL
INTERNATIONAL
EQUITY
81,109,140
SHORT-TERM
FIXED
INCOME—14.5%
9,864,896
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
95,196,243
TOTAL
SHORT-TERM
FIXED
INCOME
95,196,243
U.S.
EQUITY—22.8%
3,601,443
Nuveen
Equity
Index
Fund,
Class
W
149,459,867
TOTAL
U.S.
EQUITY
149,459,867
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$532,207,148)
654,050,086
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.1%
GOVERNMENT
AGENCY
DEBT—0.1%
$1,004,000
Federal
Home
Loan
Bank
(FHLB)
0
.000
%
03/03/25
1,003,649
TOTAL
GOVERNMENT
AGENCY
DEBT
1,003,649
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$1,003,769)
1,003,649
TOTAL
INVESTMENTS—99.9%
(Cost
$533,210,917)
655,053,735
OTHER
ASSETS
&
LIABILITIES,
NET—0.1%
438,568
NET
ASSETS—100.0%
$
655,492,303
(a)
Affiliated
fund.
Portfolio
of
Investments
February
28,
2025
(continued)
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2010
Affiliated
investment
companies
$654,050,086
$—
$—
$654,050,086
Short-term
investments
—
1,003,649
—
1,003,649
Total
$654,050,086
$1,003,649
$—
$655,053,735
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—100.1%(a)
FIXED
INCOME—40.2%
42,605,132
Nuveen
Bond
Index
Fund,
Class
W
$
412,843,733
TOTAL
FIXED
INCOME
412,843,733
INFLATION-PROTECTED
ASSETS—9.9%
9,434,375
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
101,608,218
TOTAL
INFLATION-PROTECTED
ASSETS
101,608,218
INTERNATIONAL
EQUITY—14.1%
4,093,672
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
45,357,883
4,217,195
Nuveen
International
Equity
Index
Fund,
Class
W
100,369,251
TOTAL
INTERNATIONAL
EQUITY
145,727,134
SHORT-TERM
FIXED
INCOME—9.8%
10,451,500
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
100,856,977
TOTAL
SHORT-TERM
FIXED
INCOME
100,856,977
U.S.
EQUITY—26.1%
6,457,920
Nuveen
Equity
Index
Fund,
Class
W
268,003,690
TOTAL
U.S.
EQUITY
268,003,690
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$808,477,853)
1,029,039,752
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.1%
GOVERNMENT
AGENCY
DEBT—0.1%
$766,000
Federal
Home
Loan
Bank
(FHLB)
0
.000
%
03/03/25
765,732
TOTAL
GOVERNMENT
AGENCY
DEBT
765,732
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$765,824)
765,732
TOTAL
INVESTMENTS—100.2%
(Cost
$809,243,677)
1,029,805,484
OTHER
ASSETS
&
LIABILITIES,
NET—(0.2)%
(
2,322,231
)
NET
ASSETS—100.0%
$
1,027,483,253
(a)
Affiliated
fund.
Portfolio
of
Investments
February
28,
2025
(continued)
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2015
Affiliated
investment
companies
$1,029,039,752
$—
$—
$1,029,039,752
Short-term
investments
—
765,732
—
765,732
Total
$1,029,039,752
$765,732
$—
$1,029,805,484
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—100.0%(a)
FIXED
INCOME—39.1%
124,404,975
Nuveen
Bond
Index
Fund,
Class
W
$
1,205,484,205
TOTAL
FIXED
INCOME
1,205,484,205
INFLATION-PROTECTED
ASSETS—7.9%
22,518,475
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
242,523,975
TOTAL
INFLATION-PROTECTED
ASSETS
242,523,975
INTERNATIONAL
EQUITY—16.0%
13,771,771
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
152,591,217
14,200,870
Nuveen
International
Equity
Index
Fund,
Class
W
337,980,706
TOTAL
INTERNATIONAL
EQUITY
490,571,923
SHORT-TERM
FIXED
INCOME—7.8%
24,939,804
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
240,669,105
TOTAL
SHORT-TERM
FIXED
INCOME
240,669,105
U.S.
EQUITY—29.2%
21,693,662
Nuveen
Equity
Index
Fund,
Class
W
900,286,978
TOTAL
U.S.
EQUITY
900,286,978
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$2,416,614,597)
3,079,536,186
TOTAL
INVESTMENTS—100.0%
(Cost
$2,416,614,597)
3,079,536,186
OTHER
ASSETS
&
LIABILITIES,
NET—0.0%
1,464,190
NET
ASSETS—100.0%
$
3,081,000,376
(a)
Affiliated
fund.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2020
Affiliated
investment
companies
$3,079,536,186
$—
$—
$3,079,536,186
Total
$3,079,536,186
$—
$—
$3,079,536,186
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—37.8%
239,957,401
Nuveen
Bond
Index
Fund,
Class
W
$
2,325,187,216
TOTAL
FIXED
INCOME
2,325,187,216
INFLATION-PROTECTED
ASSETS—5.9%
33,420,133
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
359,934,834
TOTAL
INFLATION-PROTECTED
ASSETS
359,934,834
INTERNATIONAL
EQUITY—17.7%
30,586,562
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
338,899,110
31,536,069
Nuveen
International
Equity
Index
Fund,
Class
W
750,558,441
TOTAL
INTERNATIONAL
EQUITY
1,089,457,551
SHORT-TERM
FIXED
INCOME—5.8%
37,023,064
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
357,272,566
TOTAL
SHORT-TERM
FIXED
INCOME
357,272,566
U.S.
EQUITY—32.6%
48,258,455
Nuveen
Equity
Index
Fund,
Class
W
2,002,725,900
TOTAL
U.S.
EQUITY
2,002,725,900
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$4,807,939,720)
6,134,578,067
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.1%
REPURCHASE
AGREEMENT—0.1%
$6,319,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
6,319,000
TOTAL
REPURCHASE
AGREEMENT
6,319,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$6,319,000)
6,319,000
TOTAL
INVESTMENTS—99.9%
(Cost
$4,814,258,720)
6,140,897,067
OTHER
ASSETS
&
LIABILITIES,
NET—0.1%
3,832,485
NET
ASSETS—100.0%
$
6,144,729,552
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$6,371,778
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$6,445,463.
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2025
Affiliated
investment
companies
$6,134,578,067
$—
$—
$6,134,578,067
Short-term
investments
—
6,319,000
—
6,319,000
Total
$6,134,578,067
$6,319,000
$—
$6,140,897,067
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—33.8%
307,736,669
Nuveen
Bond
Index
Fund,
Class
W
$
2,981,968,324
TOTAL
FIXED
INCOME
2,981,968,324
INFLATION-PROTECTED
ASSETS—3.9%
31,552,251
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
339,817,741
TOTAL
INFLATION-PROTECTED
ASSETS
339,817,741
INTERNATIONAL
EQUITY—20.5%
50,851,517
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
563,434,806
52,396,616
Nuveen
International
Equity
Index
Fund,
Class
W
1,247,039,451
TOTAL
INTERNATIONAL
EQUITY
1,810,474,257
SHORT-TERM
FIXED
INCOME—3.8%
34,957,055
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
337,335,585
TOTAL
SHORT-TERM
FIXED
INCOME
337,335,585
U.S.
EQUITY—37.8%
80,150,166
Nuveen
Equity
Index
Fund,
Class
W
3,326,231,900
TOTAL
U.S.
EQUITY
3,326,231,900
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$6,714,330,034)
8,795,827,807
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.1%
REPURCHASE
AGREEMENT—0.1%
$10,136,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
10,136,000
TOTAL
REPURCHASE
AGREEMENT
10,136,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$10,136,000)
10,136,000
TOTAL
INVESTMENTS—99.9%
(Cost
$6,724,466,034)
8,805,963,807
OTHER
ASSETS
&
LIABILITIES,
NET—0.1%
4,902,692
NET
ASSETS—100.0%
$
8,810,866,499
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$10,220,658
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$10,338,790.
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2030
Affiliated
investment
companies
$8,795,827,807
$—
$—
$8,795,827,807
Short-term
investments
—
10,136,000
—
10,136,000
Total
$8,795,827,807
$10,136,000
$—
$8,805,963,807
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.9%(a)
FIXED
INCOME—29.6%
290,086,743
Nuveen
Bond
Index
Fund,
Class
W
$
2,810,940,541
TOTAL
FIXED
INCOME
2,810,940,541
INFLATION-PROTECTED
ASSETS—1.9%
16,382,006
Nuveen
Inflation
Linked
Bond
Fund,
Class
W
176,434,203
TOTAL
INFLATION-PROTECTED
ASSETS
176,434,203
INTERNATIONAL
EQUITY—23.5%
62,734,816
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
695,101,760
64,632,834
Nuveen
International
Equity
Index
Fund,
Class
W
1,538,261,452
TOTAL
INTERNATIONAL
EQUITY
2,233,363,212
SHORT-TERM
FIXED
INCOME—1.8%
18,152,110
Nuveen
Short
Term
Bond
Index
Fund,
Class
W
175,167,862
TOTAL
SHORT-TERM
FIXED
INCOME
175,167,862
U.S.
EQUITY—43.1%
98,842,200
Nuveen
Equity
Index
Fund,
Class
W
4,101,951,306
TOTAL
U.S.
EQUITY
4,101,951,306
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$7,004,446,681)
9,497,857,124
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.1%
REPURCHASE
AGREEMENT—0.1%
$9,923,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
9,923,000
TOTAL
REPURCHASE
AGREEMENT
9,923,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$9,923,000)
9,923,000
TOTAL
INVESTMENTS—100.0%
(Cost
$7,014,369,681)
9,507,780,124
OTHER
ASSETS
&
LIABILITIES,
NET—0.0%
2,339,436
NET
ASSETS—100.0%
$
9,510,119,560
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$10,005,878
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$10,121,482.
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2035
Affiliated
investment
companies
$9,497,857,124
$—
$—
$9,497,857,124
Short-term
investments
—
9,923,000
—
9,923,000
Total
$9,497,857,124
$9,923,000
$—
$9,507,780,124
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.9%(a)
FIXED
INCOME—21.5%
223,409,237
Nuveen
Bond
Index
Fund,
Class
W
$
2,164,835,509
TOTAL
FIXED
INCOME
2,164,835,509
INTERNATIONAL
EQUITY—27.6%
77,985,705
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
864,081,612
80,349,197
Nuveen
International
Equity
Index
Fund,
Class
W
1,912,310,894
TOTAL
INTERNATIONAL
EQUITY
2,776,392,506
U.S.
EQUITY—50.8%
122,864,077
Nuveen
Equity
Index
Fund,
Class
W
5,098,859,196
TOTAL
U.S.
EQUITY
5,098,859,196
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$6,975,483,498)
10,040,087,211
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.2%
REPURCHASE
AGREEMENT—0.2%
$16,815,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
16,815,000
TOTAL
REPURCHASE
AGREEMENT
16,815,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$16,815,000)
16,815,000
TOTAL
INVESTMENTS—100.1%
(Cost
$6,992,298,498)
10,056,902,211
OTHER
ASSETS
&
LIABILITIES,
NET—(0.1)%
(
5,893,111
)
NET
ASSETS—100.0%
$
10,051,009,100
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$16,955,441
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$17,151,332.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2040
Affiliated
investment
companies
$10,040,087,211
$—
$—
$10,040,087,211
Short-term
investments
—
16,815,000
—
16,815,000
Total
$10,040,087,211
$16,815,000
$—
$10,056,902,211
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—13.8%
122,331,169
Nuveen
Bond
Index
Fund,
Class
W
$
1,185,389,030
TOTAL
FIXED
INCOME
1,185,389,030
INTERNATIONAL
EQUITY—30.3%
73,261,091
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
811,732,887
75,449,968
Nuveen
International
Equity
Index
Fund,
Class
W
1,795,709,228
TOTAL
INTERNATIONAL
EQUITY
2,607,442,115
U.S.
EQUITY—55.7%
115,344,939
Nuveen
Equity
Index
Fund,
Class
W
4,786,814,970
TOTAL
U.S.
EQUITY
4,786,814,970
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$6,012,962,980)
8,579,646,115
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.2%
REPURCHASE
AGREEMENT—0.2%
$14,006,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
14,006,000
TOTAL
REPURCHASE
AGREEMENT
14,006,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$14,006,000)
14,006,000
TOTAL
INVESTMENTS—100.0%
(Cost
$6,026,968,980)
8,593,652,115
OTHER
ASSETS
&
LIABILITIES,
NET—0.0%
387,301
NET
ASSETS—100.0%
$
8,594,039,416
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$14,122,980
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$14,286,167.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2045
Affiliated
investment
companies
$8,579,646,115
$—
$—
$8,579,646,115
Short-term
investments
—
14,006,000
—
14,006,000
Total
$8,579,646,115
$14,006,000
$—
$8,593,652,115
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—10.0%
75,960,302
Nuveen
Bond
Index
Fund,
Class
W
$
736,055,330
TOTAL
FIXED
INCOME
736,055,330
INTERNATIONAL
EQUITY—31.7%
65,646,439
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
727,362,546
67,650,868
Nuveen
International
Equity
Index
Fund,
Class
W
1,610,090,669
TOTAL
INTERNATIONAL
EQUITY
2,337,453,215
U.S.
EQUITY—58.1%
103,375,302
Nuveen
Equity
Index
Fund,
Class
W
4,290,075,013
TOTAL
U.S.
EQUITY
4,290,075,013
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$5,185,560,295)
7,363,583,558
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.2%
REPURCHASE
AGREEMENT—0.2%
$10,977,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
10,977,000
TOTAL
REPURCHASE
AGREEMENT
10,977,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$10,977,000)
10,977,000
TOTAL
INVESTMENTS—100.0%
(Cost
$5,196,537,295)
7,374,560,558
OTHER
ASSETS
&
LIABILITIES,
NET—0.0%
3,055,945
NET
ASSETS—100.0%
$
7,377,616,503
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$11,068,681
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$11,196,548.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2050
Affiliated
investment
companies
$7,363,583,558
$—
$—
$7,363,583,558
Short-term
investments
—
10,977,000
—
10,977,000
Total
$7,363,583,558
$10,977,000
$—
$7,374,560,558
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—8.7%
41,133,754
Nuveen
Bond
Index
Fund,
Class
W
$
398,586,077
TOTAL
FIXED
INCOME
398,586,077
INTERNATIONAL
EQUITY—32.1%
41,252,128
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
457,073,574
42,505,188
Nuveen
International
Equity
Index
Fund,
Class
W
1,011,623,479
TOTAL
INTERNATIONAL
EQUITY
1,468,697,053
U.S.
EQUITY—59.0%
64,992,192
Nuveen
Equity
Index
Fund,
Class
W
2,697,175,954
TOTAL
U.S.
EQUITY
2,697,175,954
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$3,373,485,165)
4,564,459,084
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.2%
REPURCHASE
AGREEMENT—0.2%
$8,157,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
8,157,000
TOTAL
REPURCHASE
AGREEMENT
8,157,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$8,157,000)
8,157,000
TOTAL
INVESTMENTS—100.0%
(Cost
$3,381,642,165)
4,572,616,084
OTHER
ASSETS
&
LIABILITIES,
NET—(0.0)%
(
1,492,282
)
NET
ASSETS—100.0%
$
4,571,123,802
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$8,225,129
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$8,320,211.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2055
Affiliated
investment
companies
$4,564,459,084
$—
$—
$4,564,459,084
Short-term
investments
—
8,157,000
—
8,157,000
Total
$4,564,459,084
$8,157,000
$—
$4,572,616,084
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.8%(a)
FIXED
INCOME—7.5%
20,212,380
Nuveen
Bond
Index
Fund,
Class
W
$
195,857,963
TOTAL
FIXED
INCOME
195,857,963
INTERNATIONAL
EQUITY—32.5%
24,022,372
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
266,167,878
24,744,487
Nuveen
International
Equity
Index
Fund,
Class
W
588,918,792
TOTAL
INTERNATIONAL
EQUITY
855,086,670
U.S.
EQUITY—59.8%
37,860,310
Nuveen
Equity
Index
Fund,
Class
W
1,571,202,863
TOTAL
U.S.
EQUITY
1,571,202,863
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$2,040,074,754)
2,622,147,496
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.3%
REPURCHASE
AGREEMENT—0.3%
$7,777,000
(b)
Bank
of
New
York
Mellon
Corp
4
.350
%
03/03/25
7,777,000
TOTAL
REPURCHASE
AGREEMENT
7,777,000
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$7,777,000)
7,777,000
TOTAL
INVESTMENTS—100.1%
(Cost
$2,047,851,754)
2,629,924,496
OTHER
ASSETS
&
LIABILITIES,
NET—(0.1)%
(
2,154,693
)
NET
ASSETS—100.0%
$
2,627,769,803
(a)
Affiliated
fund.
(b)
Agreement
with
Bank
of
New
York
Mellon
Corp,
4.350%
dated
2/28/25
to
be
repurchased
at
$7,841,955
on
3/3/25,
collateralized
by
Government
Agency
Securities,
with
coupon
rate
4.000%
and
maturity
date
12/15/27,
valued
at
$7,932,599.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2060
Affiliated
investment
companies
$2,622,147,496
$—
$—
$2,622,147,496
Short-term
investments
—
7,777,000
—
7,777,000
Total
$2,622,147,496
$7,777,000
$—
$2,629,924,496
1
1
1
1
1
Portfolio
of
Investments
February
28,
2025
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The Fund's
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Adviser,
subject
to
the
review
and
oversight
of
the
Board. Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
that
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
(Unaudited)
SHARES
DESCRIPTION
VALUE
AFFILIATED
INVESTMENT
COMPANIES—99.6%(a)
FIXED
INCOME—6.2%
3,434,917
Nuveen
Bond
Index
Fund,
Class
W
$
33,284,350
TOTAL
FIXED
INCOME
33,284,350
INTERNATIONAL
EQUITY—32.8%
4,976,217
Nuveen
Emerging
Markets
Equity
Index
Fund,
Class
W
55,136,480
5,127,764
Nuveen
International
Equity
Index
Fund,
Class
W
122,040,782
TOTAL
INTERNATIONAL
EQUITY
177,177,262
U.S.
EQUITY—60.6%
7,869,132
Nuveen
Equity
Index
Fund,
Class
W
326,568,976
TOTAL
U.S.
EQUITY
326,568,976
TOTAL
AFFILIATED
INVESTMENT
COMPANIES
(Cost
$463,936,520)
537,030,588
PRINCIPAL
DESCRIPTION
RATE
MATURITY
VALUE
SHORT-TERM
INVESTMENTS—0.7%
GOVERNMENT
AGENCY
DEBT—0.7%
$3,631,000
Federal
Home
Loan
Bank
(FHLB)
0
.000
%
03/03/25
3,629,729
TOTAL
GOVERNMENT
AGENCY
DEBT
3,629,729
TOTAL
SHORT-TERM
INVESTMENTS
(Cost
$3,630,165)
3,629,729
TOTAL
INVESTMENTS—100.3%
(Cost
$467,566,685)
540,660,317
OTHER
ASSETS
&
LIABILITIES,
NET—(0.3)%
(
1,441,718
)
NET
ASSETS—100.0%
$
539,218,599
(a)
Affiliated
fund.
Fund
Level
1
Level
2
Level
3
Total
Lifecycle
Index
2065
Affiliated
investment
companies
$537,030,588
$—
$—
$537,030,588
Short-term
investments
—
3,629,729
—
3,629,729
Total
$537,030,588
$3,629,729
$—
$540,660,317
1
1
1
1
1