SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF
US ˙ ARCA ˙ US78468R6633

SecurityBIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership886,723 shares
Latest Disclosed Value $ 81,259,218
Private Advisor Group, LLC ownership in BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 886,723 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF (US:BIL) valued at $81,259,296 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 850,601 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF. This represents a change in shares of 4.25% during the quarter. The current value of the position is $81,055,349 USD.

Private Advisor Group, LLC has a history of taking positions in derivatives of the underlying security (BIL) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R663 886,723 36,122 4.25 81,259 4.54 0.3609
2026-02-17 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R663 850,601 -149,257 -14.93 77,728 -15.27 0.3500
2025-11-13 2025-09-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 999,858 108,119 12.12 91,737 12.15 0.4512
2025-08-11 2025-06-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 891,739 -39,544 -4.25 81,799 -4.25 0.4405
2025-05-05 2025-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 931,283 -18,288 -1.93 85,427 -1.60 0.5167
2025-02-03 2024-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 949,571 97,217 11.41 86,819 10.95 0.4887
2024-10-22 2024-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 852,354 57,822 7.28 78,255 7.31 0.4859
2024-08-05 2024-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 794,532 97,910 14.05 72,922 14.03 0.4892
2024-04-30 2024-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 696,622 14,923 2.19 63,950 2.65 0.4596
2024-02-06 2023-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 681,699 -47,391 -6.50 62,300 -6.94 0.4843
2023-11-03 2023-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 729,090 228,822 45.74 66,945 45.74 0.5981
2023-08-10 2023-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 500,268 185,458 58.91 45,933 58.91 0.3993
2023-05-10 2023-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 314,810 53,381 20.42 28,906 3,668.58 0.2761
2023-01-18 2022-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 261,429 25,106 10.62 767 -96.46 0.0386
2022-10-14 2022-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 236,323 -74,532 -23.98 21,647 -23.89 0.2488
2022-07-13 2022-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 310,855 111,696 56.08 28,440 56.19 0.2537
2022-05-12 2022-03-31 13F/A-1 SPDR SER TR BLOOMBERG 1-3 MO 78468R663 199,159 30,799 18.29 18,209 18.29 0.1395
2022-05-10 2022-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 168,360 0 15,393 0.1157
2022-02-10 2021-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 168,360 -111,209 -39.78 15,393 -39.80 0.1155
2021-10-14 2021-09-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 279,569 -63,169 -18.43 25,569 -18.44 0.1625
2021-08-12 2021-06-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 342,738 -10,559 -2.99 31,350 -3.02 0.2738
2021-04-22 2021-03-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 353,297 21,042 6.33 32,327 6.31 0.3084
2021-04-01 2020-12-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 332,255 2,713 0.82 30,408 0.82 0.3169
2020-11-02 2020-09-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 329,542 -9,364 -2.76 30,161 -2.77 0.3922
2020-08-17 2020-06-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 338,906 -81,033 -19.30 31,020 -19.38 0.4306
2020-05-12 2020-03-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 419,939 171,510 69.04 38,479 69.41 0.7063
2020-02-10 2019-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 248,429 -12,562 -4.81 22,714 -4.97 0.3531
2019-11-13 2019-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 260,991 147,226 129.41 23,902 129.34 0.3717
2019-08-14 2019-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 113,765 25,912 29.49 10,422 29.51 0.1884
2019-05-13 2019-03-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 87,853 -31,733 -26.54 8,047 -19.98 0.1588
2019-02-08 2018-12-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 119,586 43,879 57.96 10,056 45.05 0.2424
2018-11-01 2018-09-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 75,707 68,149 901.68 6,933 903.33 0.1421
2018-08-09 2018-06-30 13F SPDR SER TR SPDR BLOOMBERG 78468R663 7,558 -7,467 -49.70 691 -49.78 0.0113
2018-05-09 2018-03-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 15,025 9,453 169.65 1,376 169.80 0.0538
2018-02-07 2017-12-31 13F SPDR SER TR SPDR BLOOMBERG 78468R663 5,572 5,572 510 0.0215
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-02-06 2023-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-03 2023-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO Call 17,700 16 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.