§ 13F · FUND PROFILE
IMC-Chicago, LLC.
Options market maker, high-frequency
AUM · $275.0B (13F)Positions · 3755Turnover · 97% · Q1Filed · May 5, 2026
CONCENTRATION
38%
Top 10 holdings
NEW BUYS
+2182
+$3.6B deployed
EXITS
0
No exits
SECTOR SHIFT
AUTOMOBILES → OTHER
-2pp · +1pp
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED MAY 5, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | SPY | STATE STR SPDR S&P 500 ETF T | 42.83M | $27.9B | 10.0% | +24% |
| 2 | SPY | STATE STR SPDR S&P 500 ETF T | 32.79M | $21.3B | 7.7% | +40% |
| 3 | QQQ | INVESCO QQQ TR | 17.92M | $10.3B | 3.7% | +46% |
| 4 | QQQ | INVESCO QQQ TR | 14.90M | $8.6B | 3.1% | +76% |
| 5 | NVDA | NVIDIA CORPORATION | 44.91M | $7.8B | 2.8% | −12% |
| 6 | TSLA | TESLA INC | 20.27M | $7.5B | 2.7% | −8% |
| 7 | NVDA | NVIDIA CORPORATION | 38.05M | $6.6B | 2.4% | −23% |
| 8 | MSFT | MICROSOFT CORP | 14.90M | $5.5B | 2.0% | +141% |
| 9 | TSLA | TESLA INC | 14.49M | $5.4B | 1.9% | −22% |
| 10 | META | META PLATFORMS INC | 7.37M | $4.2B | 1.5% | −3% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other19.3% (+1pp)
Technology12.9% (−1pp)
Semiconductors12.5% (−1pp)
Media7.5% (−1pp)
Automobiles5.0% (−2pp)
Retail4.2% (−1pp)
§ 03 · THE IMC-CHICAGO, SIGNAL
AC read
IMC-Chicago, LLC is a Systematic / Quant fund managing $275.0 billion in assets. The fund runs a massive portfolio of 3,755 positions, broad diversification across holdings, with the top 10 accounting for 38%. Trading activity is aggressive at 97% quarterly turnover, with 2182 new positions and 0 exits last quarter. Top sector allocations: Other (19%), Technology (13%), Semiconductors (13%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
2 FILINGS
Q1 2026
Busy quarter
+2182 buys · −0 exits · 3762 changed
Q4 2025
Busy quarter
+1060 buys · −0 exits · 3132 changed
Q3 2025
Busy quarter
+802 buys · −0 exits · 2892 changed
Q2 2025
Busy quarter
+655 buys · −0 exits · 2767 changed