§ 13F · FUND PROFILE
IMC-Chicago, LLC.
Options market maker, high-frequency
AUM · $418.7B (13F)Positions · 6776Turnover · 97% · Q2Filed · Aug 6, 2026
CONCENTRATION
34%
Top 10 holdings
NEW BUYS
+1375
+$5.4B deployed
EXITS
0
No exits
SECTOR SHIFT
OTHER → SEMICONDUCTORS
-2pp · +8pp
§ 01 · TOP HOLDINGS
The book · Q2 2026
FILED AUG 6, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q2 |
|---|---|---|---|---|---|---|
| 1 | SPY | STATE STR SPDR S&P 500 ETF T | 52.47M | $39.2B | 9.4% | +23% |
| 2 | SPY | STATE STR SPDR S&P 500 ETF T | 25.04M | $18.7B | 4.5% | −24% |
| 3 | MU | MICRON TECHNOLOGY INC | 12.58M | $14.5B | 3.5% | +76% |
| 4 | QQQ | INVESCO QQQ TR | 17.16M | $12.6B | 3.0% | −4% |
| 5 | MU | MICRON TECHNOLOGY INC | 10.23M | $11.8B | 2.8% | +33% |
| 6 | SNDK | SANDISK CORP | 4.13M | $9.4B | 2.2% | +128% |
| 7 | NVDA | NVIDIA CORPORATION | 44.81M | $9.0B | 2.1% | ±0% |
| 8 | SNDK | SANDISK CORP | 3.89M | $8.8B | 2.1% | +79% |
| 9 | TSLA | TESLA INC | 20.42M | $8.6B | 2.1% | +1% |
| 10 | NVDA | NVIDIA CORPORATION | 42.38M | $8.5B | 2.0% | +11% |
§ 02 · SECTOR ALLOCATION
Where the money is
Semiconductors20.1% (+8pp)
Other17.0% (−2pp)
Technology16.3% (+3pp)
Media5.7% (−2pp)
Automobiles3.9% (−1pp)
Retail3.5% (−1pp)
§ 03 · THE IMC-CHICAGO, SIGNAL
AC read
IMC-Chicago, LLC is a Systematic / Quant fund managing $418.7 billion in assets. The fund runs a massive portfolio of 6,776 positions, broad diversification across holdings, with the top 10 accounting for 34%. Trading activity is aggressive at 97% quarterly turnover, with 1375 new positions and 0 exits last quarter. Top sector allocations: Semiconductors (20%), Other (17%), Technology (16%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
4 OF 2 FILINGS MEASURED
Q2 2026
Busy quarter
+1375 buys · −0 exits · 5198 changed
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