State Street SPDR S&P 500 ETF Trust
US ˙ ARCA ˙ US78462F1030

SecuritySPY / State Street SPDR S&P 500 ETF Trust
InstitutionBailard, Inc.
Latest Disclosed Ownership201,473 shares
Latest Disclosed Value $ 131,026,222
Bailard, Inc. ownership in SPY / State Street SPDR S&P 500 ETF Trust

On May 11, 2026 - Bailard, Inc. filed a 13F-HR form disclosing ownership of 201,473 shares of State Street SPDR S&P 500 ETF Trust (US:SPY) valued at $131,025,951 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 202,575 shares of State Street SPDR S&P 500 ETF Trust. This represents a change in shares of -0.54% during the quarter. The current value of the position is $151,958,996 USD.

Bailard, Inc. has a history of taking positions in derivatives of the underlying security (SPY) 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.

SPY / State Street SPDR S&P 500 ETF Trust 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)
2026-05-11 2026-03-31 13F STATE STR SPDR S&P 500 ETF T TR UNIT 78462F103 201,473 -1,102 -0.54 131,026 -5.15 3.0120
2026-02-04 2025-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 202,575 -2,457 -1.20 138,141 1.14 3.0585
2025-10-30 2025-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 205,032 -1,622 -0.78 136,589 6.98 2.9680
2025-08-08 2025-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 206,654 3,605 1.78 127,681 12.41 2.9764
2025-05-02 2025-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 203,049 -687 -0.34 113,584 -4.88 2.9317
2025-02-05 2024-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 203,736 -1,541 -0.75 119,406 1.38 3.0519
2024-10-30 2024-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 205,277 -592 -0.29 117,780 5.13 3.0662
2024-07-25 2024-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 205,869 -1,767 -0.85 112,038 3.16 3.0867
2024-05-08 2024-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 207,636 178 0.09 108,608 10.14 2.9976
2024-02-02 2023-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 207,458 -16,162 -7.23 98,607 3.15 2.9212
2023-10-24 2023-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 223,620 8,521 3.96 95,593 0.26 3.1664
2023-07-20 2023-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 215,099 6,490 3.11 95,349 11.65 3.3346
2023-05-08 2023-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 208,609 160,494 333.56 85,403 364.14 3.0597
2023-02-02 2022-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 48,115 -569 -1.17 18,401 5.81 0.7009
2022-10-18 2022-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 48,684 -1,492 -2.97 17,389 -8.14 0.7190
2022-07-27 2022-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 50,176 -180,006 -78.20 18,929 -81.79 0.7451
2022-04-25 2022-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 230,182 2,133 0.94 103,960 -4.02 3.4957
2022-02-10 2021-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 228,049 1,310 0.58 108,314 11.32 3.4534
2021-11-15 2021-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 226,739 616 0.27 97,303 0.53 3.3254
2021-08-13 2021-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 226,123 2,698 1.21 96,794 9.31 3.3443
2021-05-13 2021-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 223,425 -4,512 -1.98 88,550 3.91 3.2825
2021-02-03 2020-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 227,937 9,981 4.58 85,222 16.76 3.8868
2020-11-10 2020-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 217,956 5,216 2.45 72,991 11.27 3.7804
2020-08-12 2020-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 212,740 161,363 314.08 65,601 395.36 3.6645
2020-04-16 2020-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 51,377 -211,761 -80.48 13,243 -84.36 0.9431
2020-01-31 2019-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 263,138 -257 -0.10 84,694 8.35 4.7730
2019-10-18 2019-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 263,395 -4,932 -1.84 78,168 -0.57 4.7269
2019-07-26 2019-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 268,327 1,548 0.58 78,620 4.33 4.8062
2019-04-24 2019-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 266,779 123,262 85.89 75,360 110.10 4.6742
2019-02-05 2018-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 143,517 -133,753 -48.24 35,868 -55.50 2.4247
2018-11-13 2018-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 277,270 -1,330 -0.48 80,608 6.66 4.7134
2018-08-08 2018-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 278,600 3,976 1.45 75,578 4.58 4.5025
2018-05-07 2018-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 274,624 2,076 0.76 72,267 -0.64 4.6131
2018-02-08 2017-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 272,548 -5,810 -2.09 72,732 4.01 4.5771
2018-01-29 2017-09-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 278,358 -1,604 -0.57 69,931 3.30 5.4150
2017-10-11 2017-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 278,358 -1,604 69,931 5.3327
2018-01-29 2017-06-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 279,962 -1,394 -0.50 67,695 2.06 5.5241
2017-08-11 2017-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 279,962 -1,394 67,695 5.3657
2018-01-29 2017-03-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 281,356 -23,820 -7.81 66,327 -2.77 5.5062
2017-05-12 2017-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 281,356 -23,820 66,327 5.5438
2018-01-29 2016-12-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 305,176 235,569 338.43 68,215 353.08 6.3247
2017-02-10 2016-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 305,176 235,569 68,215 6.1733
2018-01-29 2016-09-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 69,607 -248,944 -78.15 15,056 -77.44 1.3904
2016-11-08 2016-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 69,607 -248,944 15,056 1.3723
2018-01-29 2016-06-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 318,551 246,582 342.62 66,728 351.14 7.9510
2016-08-08 2016-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 318,551 246,582 66,728 8.0575
2018-01-29 2016-03-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 71,969 71,969 14,791 2.0660
2016-05-16 2016-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 71,969 71,969 14,791 2.0758
2018-01-29 2015-12-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 0 -70,724 -100.00 0 -100.00
2018-01-29 2015-09-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 70,724 -286,468 -80.20 13,553 -81.57 2.1297
2015-11-13 2015-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 70,724 -286,468 13,553 2.1479
2018-01-29 2015-06-30 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 357,192 283,036 381.68 73,528 380.32 11.3842
2015-08-06 2015-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 357,192 283,036 73,528 11.5030
2018-01-29 2015-03-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 74,156 -266,902 -78.26 15,308 -78.16 2.1254
2015-05-07 2015-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 74,156 -266,902 15,308 2.1504
2018-01-29 2014-12-31 13F/A-1 SPDR S&P 500 ETF TR TR UNIT 78462F103 341,058 -38,759 -10.20 70,101 -6.32 9.9226
2015-01-26 2014-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 341,058 -38,759 70,101
2014-10-21 2014-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 379,817 -29,305 -7.16 74,832 -6.55 11.4818
2014-07-30 2014-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 409,122 889 0.22 80,073 4.88 12.3167
2014-04-30 2014-03-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 408,233 -7,100 -1.71 76,344 0.50 12.1087
2014-01-28 2013-12-31 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 415,333 321,846 344.27 75,964 383.63 12.2478
2013-10-28 2013-09-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 93,487 -302,561 -76.40 15,707 -75.28 2.9830
2013-07-16 2013-06-30 13F SPDR S&P 500 ETF TR TR UNIT 78462F103 396,048 396,048 63,534 11.5611
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
(%)
2018-02-08 2017-12-31 13F SPDR S&P 500 ETF TR TR UNIT Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-01-29 2017-09-30 13F/A SPDR S&P 500 ETF TR TR UNIT Call 3,000 26 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.