Prosh Ultrapro Short S&p 500
$34.710%
-$21.1M
Net Activity
-19.59% total shares
Institutions Holding
42
Popularity Rank
#6620
Avg Weight
0.02%
Total Value
$143.5M
42 institutions currently hold SPXU, with 23 net buyers and 24 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
24
Net Buying Institutions
23
Top 5 by Value
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Across its top 20 institutional holders, SPXU's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 8/100, avg. turnover score 47/100).
SPXU ranks #6620 out of 37503 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
SPXU is a disclosed holding of Jane Street (Jane Street Group), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.
42 institutions disclose a position in SPXU, but none treat it as a major bet — even Flow Traders U.s. LLC, its most concentrated holder, allocates just 0.4% of its own portfolio to it.
Morgan Stanley has added to its SPXU position for two straight quarters, increasing it by $257.3K to reach $257.7K today.
Ken Griffin has trimmed its SPXU position for two straight quarters, cutting it by $20.0M while still holding $14.4M.
SPXU is down 0% today, and institutions have been net sellers of $21.1M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
+$31.4M
Total Buy Value
$63.1M
Total Sell Value
23
Net Buyers
24
Net Sellers
SPXU
Q2 2026
Top 5 Institutional Movers
-$15.8M
-$10.1M
+$9.7M
-$7.5M
SPXU does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
No Schedule 13D/13G filings for this ticker
No Form 8-K filings for this ticker
74350P659, 74347B110, 74349Y845
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,243
Total reported value
$2.2T
3231 13F institutions increased their position this quarter
Institutions Holding
5,991
Total reported value
$3.6T
3034 13F institutions increased their position this quarter
Institutions Holding
6,154
Total reported value
$1.8T
2973 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,840
Total reported value
$1.5T
Held by 4840 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,764
Total reported value
$1.2T
Held by 4764 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,692
Total reported value
$473.3B
Held by 4692 institutions — one of the most-tracked stocks on AlphaSMO
Access SPXU's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/SPXUCLI
npx alphasmo stocks get SPXU