ProShares UltraPro Short S&P 500 (SPXU)

ProShares UltraPro Short S&P 500 (SPXU) is listed on NYSE Arca, where it has traded since June 23, 2009.

Listed On
NYSE Arca
Listed Since
June 23, 2009

Institutional ownership

In 13F filings for the quarter ended June 30, 2026, 43 institutions reported holding SPXU, with 1.5 million shares worth $90.4 million in aggregate. The largest reported holder was Flow Traders U.S, with 261,324 shares worth $9.7 million. Of the 5 largest holders listed below, 2 opened new positions in SPXU, 2 added shares and 1 reduced its position during the quarter.

InstitutionSharesValueQuarter change
Flow Traders U.S261,324$10MNew position
Imc-Chicago210,294$8MReduced 33.5%
Jump Financial185,277$7MAdded 280.67%
Renaissance Technologies172,025$6MNew position
Susquehanna International Group128,108$5MAdded 2.99%

Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.

Frequently asked questions

What is SPXU?

ProShares UltraPro Short S&P 500 (SPXU) is listed on NYSE Arca, where it has traded since June 23, 2009.

Who are the largest institutional holders of SPXU?

In 13F filings for the quarter ended June 30, 2026, the largest reported holders of SPXU were Flow Traders U.S, Imc-Chicago and Jump Financial.

How many institutions own SPXU?

43 institutions reported a position in SPXU for the quarter ended June 30, 2026, worth $90.4 million in total.

Did institutions buy or sell SPXU last quarter?

Of the 5 largest reported holders, 2 opened new positions in SPXU, 2 added shares and 1 reduced its position during the quarter. Every reported holder and its change is on the SentiSense ownership page for SPXU.

Every reported institutional holder, plus insider and congressional trades in SPXU, on SentiSense.