# PROSHARES TR ULTRASHORT BITCO

PROSHARES TR ULTRASHORT BITCO is a security (CUSIP 74349Y563) tracked across SEC portfolio filings. 15 institutional managers reported $21.8M on Form 13F as of 2026-06-30; 1 registered fund positions totaling $-57 via N-PORT as of 2026-03-31.

## Summary

- Issuer: PROSHARES TR
- Class: ULTRASHORT BITCO
- CUSIP: 74349Y563
- Asset category: OTHER
- 13F holders: 15
- 13F value: $21.8M
- 13F period: 2026-06-30
- N-PORT fund positions: 1
- N-PORT value: $-57
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $8.1M | 43,034 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $6.7M | 117,564 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $3.4M | — |
| [Belvedere Trading LLC](https://search.stillhousedata.com/firm/132605) | CHICAGO, IL | $933K | 2,800 |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $623K | 10,940 |
| [Revere Asset Management, Inc](https://search.stillhousedata.com/firm/152881) | DALLAS, TX | $615K | 10,791 |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $481K | 8,445 |
| StoneX Group Inc. | New York, NY | $461K | 8,094 |
| WOLVERINE TRADING, LLC | CHICAGO, IL | $206K | — |
| IMC-Chicago, LLC | CHICAGO, IL | $204K | 2,931 |
| Tower Research Capital LLC (TRC) | NEW YORK, NY | $48K | 846 |
| UBS Group AG | Zurich, V8 | $17K | 298 |
| [FLOW TRADERS U.S. LLC](https://search.stillhousedata.com/firm/150780) | NEW YORK, NY | $344 | 6,043 |
| [HRT FINANCIAL LP](https://search.stillhousedata.com/firm/152144) | NEW YORK, NY | $322 | 5,654 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | 0 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| RENN Fund, Inc. | RENN FUND, INC. | $-57 | -0.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/74349Y563.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.