PROSHARES ULTRASHORT S&P500 (SDS) Institutional Ownership Changes & 13F Activity
PROSHARES ULTRASHORT S&P500 (SDS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Revere Asset Management, Inc, Bedell Frazier Investment Counselling, Llc, Thomas J. Herzfeld Advisors, Inc., Three Seasons Wealth, Llc, and Goldman Sachs Group Inc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Newedge Advisors, Llc | Buy | +3,241 | — | 3,241 | $3.24K | Q1 2026 | May 18, 2026 |
| Bedell Frazier Investment Counselling, Llc | Buy | +164,233 | — | 164,233 | $12.36M | Q1 2026 | May 15, 2026 |
| Goldman Sachs Group Inc | Sell | -48,140 | -48.1% | 51,860 | $3.90M | Q1 2026 | May 15, 2026 |
| Susquehanna International Group, Llp | Buy | +24,304 | +41.9% | 82,347 | $6.20M | Q1 2026 | May 15, 2026 |
| Massar Capital Management, Lp | Buy | +14,616 | +124.7% | 26,334 | $1.98M | Q1 2026 | May 15, 2026 |
| Millennium Management Llc | Buy | +8,000 | — | 8,000 | $602.00K | Q1 2026 | May 15, 2026 |
| Two Sigma Securities, Llc | Buy | +3,701 | — | 3,701 | $278.50K | Q1 2026 | May 15, 2026 |
| Xtx Topco Ltd | Sell | -1,278 | -26.6% | 3,535 | $266.01K | Q1 2026 | May 15, 2026 |
| Captrust Financial Advisors | Sell | -500 | -12.0% | 3,663 | $275.64K | Q1 2026 | May 15, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +447 | +12.9% | 3,915 | $294.60K | Q1 2026 | May 15, 2026 |
| Royal Bank Of Canada | Buy | +163 | — | 163 | $12.00K | Q1 2026 | May 15, 2026 |
| Osaic Holdings, Inc. | Buy | +138 | — | 138 | $10.38K | Q1 2026 | May 15, 2026 |
| Jones Financial Companies Lllp | Buy | +3 | — | 3 | $238.00 | Q1 2026 | May 15, 2026 |
| Jump Financial, Llc | Buy | +17,266 | — | 17,266 | $1.30M | Q1 2026 | May 14, 2026 |
| Renaissance Technologies LLC | Buy | +16,700 | — | 16,700 | $1.26M | Q1 2026 | May 14, 2026 |
| Simplex Trading, Llc | Buy | +8,373 | +360.0% | 10,699 | $805.10K | Q1 2026 | May 14, 2026 |
| Gabelli & Co Investment Advisers, Inc. | Buy | +5,600 | — | 5,600 | $421.40K | Q1 2026 | May 14, 2026 |
| Group One Trading Llc | Buy | +5,747 | +16902.9% | 5,781 | $435.02K | Q1 2026 | May 13, 2026 |
| Thomas J. Herzfeld Advisors, Inc. | Buy | +108,584 | — | 108,584 | $8.17M | Q1 2026 | May 12, 2026 |
| Sfmg, Llc | Buy | +3,054 | — | 3,054 | $229.81K | Q1 2026 | May 12, 2026 |
| Colonial Trust Advisors | Buy | +2,800 | +203.6% | 4,175 | $314.17K | Q1 2026 | May 12, 2026 |
| Bnp Paribas Financial Markets | Sell | -2,341 | -94.4% | 139 | $10.46K | Q1 2026 | May 12, 2026 |
| Generation Capital Management Llc | Buy | +18,940 | — | 18,940 | $1.43M | Q1 2026 | May 08, 2026 |
| Vontobel Holding Ltd. | Buy | +2,857 | — | 2,857 | $228.11K | Q1 2026 | May 08, 2026 |
| Blair William & Co/Il | Sell | -100 | -16.7% | 500 | $37.63K | Q1 2026 | May 08, 2026 |
| Parallel Advisors, Llc | Buy | +460 | +196.6% | 694 | $52.25K | Q1 2026 | May 07, 2026 |
| Revere Asset Management, Inc | Buy | +479,557 | — | 479,557 | $36.09M | Q1 2026 | May 06, 2026 |
| Three Seasons Wealth, Llc | Buy | +66,230 | — | 66,230 | $4.98M | Q1 2026 | May 05, 2026 |
| Bay Colony Advisory Group, Inc D/B/A Bay Colony Advisors | Buy | +24,596 | — | 24,596 | $1.85M | Q1 2026 | May 05, 2026 |
| Ubs Group Ag | Buy | +18,418 | +153.0% | 30,458 | $2.29M | Q1 2026 | May 05, 2026 |
Frequently asked questions about SDS activity
Which institutional owners are buying SDS?
Institutional owners buying SDS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SDS activity?
"Buy" means an investor increased their reported position in SDS compared to the prior reporting period. This reflects growing exposure to PROSHARES ULTRASHORT S&P500 (SDS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SDS increasing?
Institutional interest in SDS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.