Security
Shares
Value
Investment
Companies
(a)
Equity
Funds
—
62.4%
iShares
Core
MSCI
Emerging
Markets
ETF
(b)
.
608,374
$
40,104,014
iShares
Core
S&P
500
ETF
.............
115,277
77,154,896
iShares
MSCI
EAFE
Value
ETF
(b)
.........
716,437
48,595,922
iShares
MSCI
USA
Momentum
Factor
ETF
(b)
.
140,703
36,083,284
iShares
MSCI
USA
Quality
Factor
ETF
.....
428,088
83,263,116
iShares
S&P
100
ETF
(b)
...............
130,965
43,590,391
iShares
S&P
500
Growth
ETF
(b)
..........
439,521
53,058,975
iShares
S&P
500
Value
ETF
(b)
...........
211,828
43,744,600
iShares
U.S.
Aerospace
&
Defense
ETF
(b)
...
34,812
7,284,759
iShares
U.S.
Technology
ETF
(b)
..........
142,676
27,944,522
460,824,479
Fixed-Income
Funds
—
37.5%
(b)
iShares
10-20
Year
Treasury
Bond
ETF
.....
350,495
36,097,480
iShares
Core
International
Aggregate
Bond
ETF
422,313
21,635,095
iShares
Core
Total
USD
Bond
Market
ETF
...
3,690,899
172,401,892
iShares
J.P.
Morgan
USD
Emerging
Markets
Bond
ETF
.......................
112,315
10,691,265
iShares
MBS
ETF
...................
380,129
36,169,274
276,995,006
Total
Long-Term
Investments
—
99.9%
(Cost:
$
654,978,868
)
................................
737,819,485
Security
Shares
Value
Short-Term
Securities
Money
Market
Funds
—
19
.9
%
(a)
(c)
BlackRock
Cash
Funds:
Institutional,
SL
Agency
Shares
,
4.26
%
(d)
...................
144,130,284
$
144,202,349
BlackRock
Liquidity
Funds,
T-Fund,
Institutional
Class
,
4.01
%
.....................
2,895,127
2,895,127
Total
Short-Term
Securities
—
19
.9
%
(Cost:
$
147,107,069
)
..............................
147,097,476
Total
Investments
—
119
.8
%
(Cost:
$
802,085,937
)
..............................
884,916,961
Liabilities
in
Excess
of
Other
Assets
—
(
19.8
)
%
............
(
146,060,439
)
Net
Assets
—
100.0%
...............................
$
738,856,522
(a)
Affiliate
of
the
Fund.
(b)
All
or
a
portion
of
this
security
is
on
loan.
(c)
Annualized
7-day
yield
as
of
period
end.
(d)
All
or
a
portion
of
this
security
was
purchased
with
the
cash
collateral
from
loaned
securities.