v3.26.1
Shareholder Report
 6 Months Ended
Apr. 30, 2026
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 Apr. 30, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000253542  
Shareholder Report [Line Items]  
Fund Name State Street<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 16px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> SPDR<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 16px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF
Trading Symbol CERY
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the State Street® SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF (the "Fund") for the period of November 1, 2025 through April 30, 2026.
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&amp;type=etfs. You can also request this information about the Fund by contacting us at 1-866-787-2257.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-866-787-2257
Additional Information Website www.ssga.com/us/en/institutional/fund-finder?tab=documents&amp;type=etfs
Expenses [Text Block]

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

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
State Street® SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF
$13
0.22%Footnote Reference*
Footnote Description
Footnote*
 Annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.22% [1]
Material Change Date Apr. 30, 2026
AssetsNet $ 1,064,923,204
Holdings Count | Holding 40
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics as of 4/30/2026

  • Total Net Assets$1,064,923,204
  • Number of Portfolio Holdings40
  • Portfolio Turnover Rate0%
Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
Holdings
%
State Street Institutional U.S. Government Money Market Fund, Class G, 3.64%
77.2%
U.S. Treasury Bills, 3.61%, due 06/16/26
4.0%
U.S. Treasury Bills, 3.56%, due 06/09/26
3.7%
U.S. Treasury Bills, 3.56%, due 05/28/26
2.9%
Bloomberg Enhanced Roll Yield Index Total Return Swap, due 05/06/26
2.1%
Bloomberg Enhanced Roll Yield Index Total Return Swap, due 05/27/26
1.0%
U.S. Treasury Bills, 3.55%, due 05/26/26
1.0%
Bloomberg Enhanced Roll Yield Index Total Return Swap, due 06/10/26
0.9%
Bloomberg Enhanced Roll Yield Index Total Return Swap, due 05/12/26
0.9%
Bloomberg Enhanced Roll Yield Index Total Return Swap, due 05/05/26
0.9%

 

Includes holdings of the wholly-owned subsidiary. 
Material Fund Change [Text Block]

Material Fund Changes 

This is a summary of certain changes of the Fund that occurred during the reporting period ended April 30, 2026. For more information contact 1-866-787-2257 (toll free) or refer to the Prospectus, which can be found on the Fund's website below.

Effective March 1, 2026, the Fund changed its name from the SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF to the State Street® SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF. This change did not result in any changes to the Fund’s Investment Objectives, Principal Investment Strategies or Principal Risks of Investing in the Fund.
Material Fund Change Name [Text Block]

Effective March 1, 2026, the Fund changed its name from the SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF to the State Street® SPDR® Bloomberg Enhanced Roll Yield Commodity Strategy No K-1 ETF. This change did not result in any changes to the Fund’s Investment Objectives, Principal Investment Strategies or Principal Risks of Investing in the Fund.
Summary of Change Legend [Text Block]

This is a summary of certain changes of the Fund that occurred during the reporting period ended April 30, 2026. For more information contact 1-866-787-2257 (toll free) or refer to the Prospectus, which can be found on the Fund's website below.
[1] Annualized.