13FBOX
UNITED STATES NAT · 13F Institutional Holdings
Options Calculator Rankings
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U

UNITED STATES NAT

Institutions
4
Combined AUM (Q2 2026)
$18.5M
Combined Shares (Q2 2026)
2.6M
Overall Trend
Increase
All institutions combined
Basis: holder count and combined value / shares merge all share classes of the same company (e.g. Class A / C); each institution is counted once, and value & shares are the sum across classes.
📥 Inflow (Q1 2026→Q2 2026)
+376,700
2 institutions added · 0 new buys
Est. buy amount
📤 Outflow (Q1 2026→Q2 2026)
-172,500
1 institutions reduced · 0 exits
Est. sell amount
⚖️ Net Share Change
+204,200
Net Buy
💰 Est. Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$18.5M
Institutions
4
New Buys
0
Adds
2
Reduces
1
Exits
0
Unchanged
1
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
GROUP ONE TRADING LLC
0.01%0.01%#1$7.8M1.1M$6.5M739,900+329,200+44.49%Add
IMC-Chicago, LLC
<0.01%<0.01%#2$5.8M792,400$6.5M744,900+47,500+6.38%Add
JPMORGAN CHASE & CO
<0.01%<0.01%#4$2.8M400,000$3.1M400,00000.00%Unchanged
SIMPLEX TRADING, LLC
<0.01%<0.01%#3$2.2M299,600$4.1M472,100-172,500-36.54%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow