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 | |
|---|---|---|---|---|---|---|
2226
Alamos Gold
AGI
$15.5B
| $4.41M | ﹤0.01% |
145,472
+71,845
| +98% | +$2.91M |
|
2227
PUT
Atlanta Braves Holdings Series B
BATRK
$3.24B
| $4.41M | ﹤0.01% |
+84,900
| New | +$4.17M |
|
|
FPS
2228
PUT
Forgent Power Solutions
FPS
$8.15B
| $4.4M | ﹤0.01% |
78,800
+60,700
| +335% | +$2.77M |
|
2229
PUT
JPMorgan Inflation Managed Bond ETF
JCPI
$900M
| $4.4M | ﹤0.01% |
71,600
+28,400
| +66% | +$1.37M |
|
2230
CALL
Franklin Templeton
BEN
$17.6B
| $4.39M | ﹤0.01% |
132,100
+16,400
| +14% | +$491K |
|
2231
PUT
Trump Media & Technology Group
DJT
$2.51B
| $4.39M | ﹤0.01% |
567,400
+71,200
| +14% | +$626K |
|
2232
PUT
The GEO Group
GEO
$4.18B
| $4.39M | ﹤0.01% |
148,600
+900
| +0.6% | +$20.4K |
|
2233
CALL
Hyatt Hotels
H
$15.6B
| $4.38M | ﹤0.01% |
22,600
+16,600
| +277% | +$2.91M |
|
2234
PUT
Valaris
VAL
$6.02B
| $4.38M | ﹤0.01% |
60,300
-34,700
| -37% | -$3.23M |
|
2235
PUT
Bilibili
BILI
$6.37B
| $4.37M | ﹤0.01% |
256,800
-148,600
| -37% | -$3.01M |
|
2236
CALL
Insulet
PODD
$10.2B
| $4.37M | ﹤0.01% |
28,700
+6,400
| +29% | +$1.07M |
|
2237
CALL
Goodyear
GT
$1.8B
| $4.37M | ﹤0.01% |
661,900
+300,000
| +83% | +$1.93M |
|
2238
PUT
Booz Allen Hamilton
BAH
$8.76B
| $4.36M | ﹤0.01% |
71,800
+15,200
| +27% | +$1.16M |
|
2239
DraftKings
DKNG
$11.9B
| $4.35M | ﹤0.01% |
172,136
-55,413
| -24% | -$1.37M |
|
2240
CALL
Mettler-Toledo International
MTD
$27B
| $4.34M | ﹤0.01% |
3,400
-4,200
| -55% | -$5.06M |
|
2241
PUT
PG&E
PCG
$31.5B
| $4.34M | ﹤0.01% |
257,900
+16,400
| +7% | +$276K |
|
2242
CALL
Solventum
SOLV
$15.6B
| $4.34M | ﹤0.01% |
56,200
+5,400
| +11% | +$394K |
|
2243
Everspin Technologies
MRAM
$399M
| $4.34M | ﹤0.01% |
+179,302
| New | +$4.02M |
|
2244
PUT
Acuity Brands
AYI
$10B
| $4.33M | ﹤0.01% |
11,500
+9,700
| +539% | +$2.88M |
|
2245
SGHC Ltd
SGHC
$7.11B
| $4.33M | ﹤0.01% |
+319,622
| New | +$4.05M |
|
2246
Adeia
ADEA
$2.92B
| $4.33M | ﹤0.01% |
+131,427
| New | +$3.88M |
|
2247
PUT
Harrow
HROW
$1.44B
| $4.33M | ﹤0.01% |
101,900
-25,100
| -20% | -$934K |
|
2248
CALL
Kodiak Gas Services
KGS
$6.33B
| $4.33M | ﹤0.01% |
57,600
+20,600
| +56% | +$1.4M |
|
2249
BigBear.ai
BBAI
$1.4B
| $4.32M | ﹤0.01% |
1,178,130
+725,802
| +160% | +$2.9M |
|
2250
PUT
Guardant Health
GH
$21.7B
| $4.32M | ﹤0.01% |
28,800
+1,800
| +7% | +$196K |
|
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.