IMC Chicago Portfolio holdings
IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
SNDK
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
DQ
1901
Daqo New Energy
DQ
$833M
| $6.34M | ﹤0.01% |
473,416
+461,956
| +4,031% | +$8.38M |
|
|
TTAN
1902
CALL
ServiceTitan Inc
TTAN
$8.39B
| $6.34M | ﹤0.01% |
89,600
-44,400
| -33% | -$2.86M |
|
1903
PUT
BILL Holdings
BILL
$4.19B
| $6.33M | ﹤0.01% |
175,000
+2,700
| +2% | +$99.5K |
|
1904
Toronto Dominion Bank
TD
$199B
| $6.33M | ﹤0.01% |
+52,108
| New | +$5.7M |
|
1905
CALL
Barclays
BCS
$90.6B
| $6.33M | ﹤0.01% |
235,500
+48,400
| +26% | +$1.17M |
|
1906
PUT
Brinker International
EAT
$9.62B
| $6.3M | ﹤0.01% |
37,500
-40,000
| -52% | -$5.92M |
|
1907
Snap
SNAP
$9.25B
| $6.3M | ﹤0.01% |
1,418,448
-697,748
| -33% | -$3.82M |
|
1908
CALL
Owens Corning
OC
$11B
| $6.29M | ﹤0.01% |
39,600
-1,200
| -3% | -$146K |
|
1909
Lumentum
LITE
$79B
| $6.29M | ﹤0.01% |
7,334
-86,185
| -92% | -$76.9M |
|
1910
CALL
C3.ai
AI
$1.67B
| $6.29M | ﹤0.01% |
692,200
-110,300
| -14% | -$1.05M |
|
1911
PUT
Lamb Weston
LW
$6.86B
| $6.29M | ﹤0.01% |
145,600
-1,321,400
| -90% | -$57M |
|
1912
Fastly Inc
FSLY
$3.28B
| $6.26M | ﹤0.01% |
341,210
+26,100
| +8% | +$567K |
|
1913
iShares US Telecommunications ETF
IYZ
$1.24B
| $6.26M | ﹤0.01% |
148,022
+125,885
| +569% | +$5.35M |
|
1914
CALL
FirstCash
FCFS
$9.79B
| $6.25M | ﹤0.01% |
28,900
+27,200
| +1,600% | +$5.91M |
|
|
PURR
1915
PUT
Hyperliquid Strategies Inc
PURR
$2.41B
| $6.25M | ﹤0.01% |
+793,900
| New | +$5.88M |
|
1916
CALL
Lantheus
LNTH
$6.59B
| $6.22M | ﹤0.01% |
56,100
-8,500
| -13% | -$792K |
|
1917
PUT
Papa John's
PZZA
$747M
| $6.22M | ﹤0.01% |
169,200
+152,700
| +925% | +$5.27M |
|
1918
Monster Beverage
MNST
$85.8B
| $6.21M | ﹤0.01% |
129,300
+79,028
| +157% | +$3.32M |
|
1919
PUT
Lamar Advertising Co
LAMR
$15.3B
| $6.18M | ﹤0.01% |
39,600
+36,300
| +1,100% | +$5.25M |
|
1920
PUT
Arthur J. Gallagher & Co
AJG
$67.3B
| $6.18M | ﹤0.01% |
26,900
-9,500
| -26% | -$2.02M |
|
1921
PUT
Woodward
WWD
$20.4B
| $6.17M | ﹤0.01% |
14,500
+3,200
| +28% | +$1.21M |
|
1922
PUT
nVent Electric
NVT
$25.3B
| $6.16M | ﹤0.01% |
36,300
+12,000
| +49% | +$1.87M |
|
1923
Duolingo
DUOL
$7.23B
| $6.16M | ﹤0.01% |
53,521
-36,540
| -41% | -$4M |
|
1924
CALL
Baxter International
BAX
$13.4B
| $6.15M | ﹤0.01% |
288,300
+37,100
| +15% | +$691K |
|
1925
Fluor
FLR
$7.51B
| $6.15M | ﹤0.01% |
+117,298
| New | +$5.74M |
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.