Ticker · held by 1 filer

SPXU

PROSHARES TR

All tracked filers currently holding SPXU, ranked by position size. Each row links through to the filer's full portfolio.

Total value held

$34.4M

Total shares

691,155

Filers holding

1 · 2 positions

Caveat

long only · 13F-eligible managers only

Filers holding SPXU

sorted by position size · click any filer to see their full portfolio

# Filer Class Shares Value (USD) % of port

1 Citadel Advisors · Ken Griffin PUTULTRAPRO SHORT S 603,335 $30.0M 0.00%

2 Citadel Advisors · Ken Griffin CALLULTRAPRO SHORT S 87,820 $4.4M 0.00%

What this is

This page reverses the usual 13F view: instead of "what does Buffett hold," it answers "who holds NVDA?" Across the dozen tracked filers, all current 13F-disclosed holders of SPXU are listed, with the position size and what fraction of each filer's overall portfolio it represents.

Caveats: only the filers tracked here are included (~12 names) — not the whole 13F universe (~6,000 filers). Position values are at the most recent quarter-end, not current market price. Only long positions are visible; shorts and synthetics aren't.

v0.2 · 2026 · data via SEC EDGAR · CUSIP→ticker via OpenFIGI