PROSHARES TR ULTRA QQQ MEGA is a security (CUSIP 74349Y696) tracked across SEC portfolio filings. 2 institutional managers reported $230K on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| JANE STREET GROUP, LLC | NEW YORK, NY | $230K | 5,229 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | 0 |