PROSHARES TR ULTRAPRO SHORT S is a security (CUSIP 74350P909) tracked across SEC portfolio filings. 2 institutional managers reported $15.3M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $10.2M | — |
| IMC-Chicago, LLC | CHICAGO, IL | $5.1M | — |