v3.25.2
Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name SPDR SERIES TRUST
Entity Central Index Key 0001064642
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000065485  
Shareholder Report [Line Items]  
Fund Name SPDR Bloomberg Emerging Markets Local Bond ETF
Trading Symbol EBND
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the SPDR Bloomberg Emerging Markets Local Bond ETF (the "Fund") for the period of January 1, 2025 through June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Additional Information Phone Number 1-866-787-2257
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 14.4px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>
Expenses [Text Block]

What were the Fund costs for the last six months? (based on a hypothetical $10,000 Investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
SPDR Bloomberg Emerging Markets Local Bond ETF
$16
0.30%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30% [1]
AssetsNet $ 2,032,108,541
Holdings Count | Holding 621
InvestmentCompanyPortfolioTurnover 18.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 6/30/2025

  • Total Net Assets$2,032,108,541
  • Number of Portfolio Holdings621
  • Portfolio Turnover Rate18%

 
Holdings [Text Block]

Top Ten Countries

Country
%
China
12.2%
South Korea
12.1%
Malaysia
6.1%
Indonesia
6.0%
Thailand
5.9%
Mexico
4.8%
India
4.6%
Brazil
4.5%
South Africa
4.4%
Poland
4.3%
Largest Holdings [Text Block]

Top Ten Holdings

Holdings
%
Brazil Letras do Tesouro Nacional, due 07/01/26
1.0%
Republic of Poland Government Bonds, 1.75%, due 04/25/32
0.6%
Republic of South Africa Government Bonds, 8.00%, due 01/31/30
0.6%
Brazil Notas do Tesouro Nacional, 10.00%, due 01/01/29
0.6%
Peru Government Bonds, 6.90%, due 08/12/37
0.6%
Korea Treasury Bonds, 1.88%, due 03/10/51
0.5%
Brazil Notas do Tesouro Nacional, 10.00%, due 01/01/31
0.5%
Republic of South Africa Government Bonds, 8.88%, due 02/28/35
0.5%
Peru Government Bonds, 6.95%, due 08/12/31
0.5%
Republic of South Africa Government Bonds, 8.75%, due 01/31/44
0.5%
C000088912  
Shareholder Report [Line Items]  
Fund Name SPDR Bloomberg International Corporate Bond ETF
Trading Symbol IBND
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the SPDR Bloomberg International Corporate Bond ETF (the "Fund") for the period of January 1, 2025 through June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Additional Information Phone Number 1-866-787-2257
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 14.4px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>
Expenses [Text Block]

What were the Fund costs for the last six months? (based on a hypothetical $10,000 Investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
SPDR Bloomberg International Corporate Bond ETF
$27
0.50%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.50% [2]
AssetsNet $ 384,299,055
Holdings Count | Holding 929
InvestmentCompanyPortfolioTurnover 17.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 6/30/2025

  • Total Net Assets$384,299,055
  • Number of Portfolio Holdings929
  • Portfolio Turnover Rate17%

 
Holdings [Text Block]

Top Ten Countries

Country
%
United States
27.1%
France
20.4%
Germany
10.6%
United Kingdom
9.7%
Spain
5.7%
Italy
5.5%
Netherlands
4.7%
Switzerland
2.9%
Belgium
2.2%
Sweden
1.7%
Largest Holdings [Text Block]

Top Ten Holdings

Holdings
%
UBS Group AG, 7.75%, due 03/01/29
0.3%
Banco Santander SA, 4.88%, due 10/18/31
0.3%
Banco Santander SA, 3.25%, due 04/02/29
0.2%
Morgan Stanley, 4.66%, due 03/02/29
0.2%
Volkswagen International Finance NV, 1.88%, due 03/30/27
0.2%
JPMorgan Chase & Co., 3.76%, due 03/21/34
0.2%
JPMorgan Chase & Co., 1.96%, due 03/23/30
0.2%
JPMorgan Chase & Co., 4.46%, due 11/13/31
0.2%
Orange SA, 8.13%, due 01/28/33
0.2%
BNP Paribas SA, 2.75%, due 07/25/28
0.2%
C000051964  
Shareholder Report [Line Items]  
Fund Name SPDR Bloomberg International Treasury Bond ETF
Trading Symbol BWX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the SPDR Bloomberg International Treasury Bond ETF (the "Fund") for the period of January 1, 2025 through June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Additional Information Phone Number 1-866-787-2257
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 14.4px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>
Expenses [Text Block]

What were the Fund costs for the last six months? (based on a hypothetical $10,000 Investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
SPDR Bloomberg International Treasury Bond ETF
$18
0.35%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.35% [3]
AssetsNet $ 1,528,920,931
Holdings Count | Holding 1,332
InvestmentCompanyPortfolioTurnover 7.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 6/30/2025

  • Total Net Assets$1,528,920,931
  • Number of Portfolio Holdings1,332
  • Portfolio Turnover Rate7%

 
Holdings [Text Block]

Top Ten Countries

Country
%
Japan
22.7%
United Kingdom
5.0%
France
4.9%
South Korea
4.6%
Italy
4.6%
China
4.5%
Spain
4.5%
Germany
4.5%
Canada
4.5%
Australia
3.8%
Largest Holdings [Text Block]

Top Ten Holdings

Holdings
%
Japan Government Ten Year Bonds, 1.20%, due 12/20/34
0.5%
Japan Government Thirty Year Bonds, 2.30%, due 12/20/54
0.4%
Japan Government Two Year Bonds, 0.90%, due 04/01/27
0.3%
Japan Government Five Year Bonds, 0.50%, due 06/20/29
0.3%
U.K. Gilts, 3.75%, due 03/07/27
0.3%
Japan Government Ten Year Bonds, 0.50%, due 03/20/33
0.3%
Japan Government Ten Year Bonds, 0.20%, due 09/20/32
0.3%
Japan Government Two Year Bonds, 0.40%, due 10/01/26
0.3%
Malaysia Government Bonds, 3.52%, due 04/20/28
0.3%
Japan Government Ten Year Bonds, 1.40%, due 03/20/35
0.3%
C000069669  
Shareholder Report [Line Items]  
Fund Name SPDR Bloomberg Short Term International Treasury Bond ETF
Trading Symbol BWZ
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the SPDR Bloomberg Short Term International Treasury Bond ETF (the "Fund") for the period of January 1, 2025 through June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Additional Information Phone Number 1-866-787-2257
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 14.4px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>
Expenses [Text Block]

What were the Fund costs for the last six months? (based on a hypothetical $10,000 Investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
SPDR Bloomberg Short Term International Treasury Bond ETF
$18
0.35%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.35% [4]
AssetsNet $ 520,882,161
Holdings Count | Holding 278
InvestmentCompanyPortfolioTurnover 26.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 6/30/2025

  • Total Net Assets$520,882,161
  • Number of Portfolio Holdings278
  • Portfolio Turnover Rate26%

 
Holdings [Text Block]

Top Ten Countries

Country
%
Japan
22.7%
Italy
5.1%
France
4.9%
South Korea
4.6%
United Kingdom
4.6%
Spain
4.6%
Germany
4.6%
China
4.5%
Canada
4.5%
Australia
4.2%
Largest Holdings [Text Block]

Top Ten Holdings

Holdings
%
U.K. Gilts, 3.75%, due 03/07/27
1.3%
Japan Government Ten Year Bonds, 0.10%, due 12/20/26
1.2%
U.K. Gilts, 4.38%, due 03/07/28
1.1%
Australia Government Bonds, 4.75%, due 04/21/27
1.1%
Japan Government Ten Year Bonds, 0.10%, due 03/20/27
1.1%
Kingdom of Belgium Government Bonds, 5.50%, due 03/28/28
1.1%
Australia Government Bonds, 0.50%, due 09/21/26
1.1%
Japan Government Five Year Bonds, 0.01%, due 06/20/27
1.1%
Japan Government Ten Year Bonds, 0.10%, due 03/20/28
1.1%
Australia Government Bonds, 2.75%, due 11/21/27
1.0%
C000051965  
Shareholder Report [Line Items]  
Fund Name SPDR FTSE International Government Inflation-Protected Bond ETF
Trading Symbol WIP
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the SPDR FTSE International Government Inflation-Protected Bond ETF (the "Fund") for the period of January 1, 2025 through June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Additional Information Phone Number 1-866-787-2257
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 14.4px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>
Expenses [Text Block]

What were the Fund costs for the last six months? (based on a hypothetical $10,000 Investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
SPDR FTSE International Government Inflation-Protected Bond ETF
$26
0.50%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 26
Expense Ratio, Percent 0.50% [5]
AssetsNet $ 382,839,154
Holdings Count | Holding 176
InvestmentCompanyPortfolioTurnover 8.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 6/30/2025

  • Total Net Assets$382,839,154
  • Number of Portfolio Holdings176
  • Portfolio Turnover Rate8%

 
Holdings [Text Block]

Top Ten Countries

Country
%
United Kingdom
17.8%
France
8.1%
Brazil
7.9%
Italy
5.8%
Mexico
4.6%
Germany
4.6%
Spain
4.6%
Japan
4.5%
Canada
4.5%
Australia
4.5%
Largest Holdings [Text Block]

Top Ten Holdings

Holdings
%
Deutsche Bundesrepublik Bonds Inflation-Linked, 0.50%, due 04/15/30
2.1%
Deutsche Bundesrepublik Bonds Inflation-Linked, 0.10%, due 04/15/46
1.4%
Spain Government Bonds Inflation-Linked, 0.70%, due 11/30/33
1.4%
Republic of Poland Government Bonds, 2.00%, due 08/25/36
1.3%
Spain Government Bonds Inflation-Linked, 1.00%, due 11/30/30
1.3%
New Zealand Government Bonds Inflation-Linked, 2.50%, due 09/20/35
1.3%
Spain Government Bonds Inflation-Linked, 0.65%, due 11/30/27
1.2%
Turkiye Government Bonds, 3.00%, due 05/28/31
1.1%
Sweden Bonds Inflation-Linked, 3.50%, due 12/01/28
1.1%
French Republic Government Bonds OAT, 1.85%, due 07/25/27
1.1%
[1] Annualized.
[2] Annualized.
[3] Annualized.
[4] Annualized.
[5] Annualized.