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 | |
|---|---|---|---|---|---|---|
1126
PUT
Suncor Energy
SU
$78.8B
| $18.1M | ﹤0.01% |
336,800
+140,600
| +72% | +$8.9M |
|
1127
CALL
Builders FirstSource
BLDR
$7.08B
| $18M | ﹤0.01% |
201,300
+4,600
| +2% | +$367K |
|
1128
PUT
Semtech
SMTC
$13.8B
| $18M | ﹤0.01% |
111,000
+83,700
| +307% | +$10.9M |
|
1129
TeraWulf
WULF
$8.24B
| $18M | ﹤0.01% |
726,847
+428,989
| +144% | +$9.87M |
|
1130
PUT
CleanSpark
CLSK
$3.26B
| $17.9M | ﹤0.01% |
1,233,200
+246,800
| +25% | +$3.48M |
|
1131
PUT
Coupang
CPNG
$27.5B
| $17.9M | ﹤0.01% |
1,031,900
+383,900
| +59% | +$6.93M |
|
1132
PUT
Unity
U
$18.3B
| $17.9M | ﹤0.01% |
625,800
-407,600
| -39% | -$10.8M |
|
1133
CALL
Edison International
EIX
$21.8B
| $17.9M | ﹤0.01% |
240,100
+102,700
| +75% | +$7.32M |
|
1134
CALL
Teva Pharmaceuticals
TEVA
$42.4B
| $17.9M | ﹤0.01% |
527,600
+71,600
| +16% | +$2.38M |
|
1135
PUT
monday.com
MNDY
$3.85B
| $17.9M | ﹤0.01% |
246,900
+53,500
| +28% | +$3.92M |
|
1136
Ondas Inc
ONDS
$4.35B
| $17.9M | ﹤0.01% |
2,168,185
-837,089
| -28% | -$8.26M |
|
1137
CALL
Keysight
KEYS
$55.7B
| $17.8M | ﹤0.01% |
50,900
+14,300
| +39% | +$4.88M |
|
1138
Intuitive Surgical
ISRG
$130B
| $17.8M | ﹤0.01% |
44,787
+33,818
| +308% | +$14.8M |
|
1139
CALL
Eos Energy Enterprises
EOSE
$1.41B
| $17.8M | ﹤0.01% |
3,028,800
+396,000
| +15% | +$2.75M |
|
1140
PUT
HSBC
HSBC
$367B
| $17.7M | ﹤0.01% |
186,400
-84,100
| -31% | -$7.67M |
|
1141
CALL
Check Point Software Technologies
CHKP
$14B
| $17.7M | ﹤0.01% |
134,800
+84,600
| +169% | +$11M |
|
1142
CALL
Illinois Tool Works
ITW
$76.9B
| $17.7M | ﹤0.01% |
65,500
-8,000
| -11% | -$2.08M |
|
1143
CALL
Sysco
SYY
$38.4B
| $17.7M | ﹤0.01% |
211,700
+12,500
| +6% | +$946K |
|
1144
CALL
Birkenstock
BIRK
$5.61B
| $17.7M | ﹤0.01% |
410,900
+362,100
| +742% | +$14.6M |
|
1145
CALL
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$128M
| $17.7M | ﹤0.01% |
799,600
+45,400
| +6% | +$1.23M |
|
1146
SLB Ltd
SLB
$85.3B
| $17.7M | ﹤0.01% |
379,660
+321,988
| +558% | +$17.3M |
|
1147
PUT
CarMax
KMX
$8.98B
| $17.6M | ﹤0.01% |
332,700
+58,400
| +21% | +$2.54M |
|
1148
PUT
Navitas Semiconductor
NVTS
$3.08B
| $17.5M | ﹤0.01% |
978,700
+495,700
| +103% | +$9.46M |
|
1149
PUT
Toast
TOST
$19.6B
| $17.5M | ﹤0.01% |
630,200
+185,400
| +42% | +$4.83M |
|
1150
CALL
Steel Dynamics
STLD
$34.7B
| $17.5M | ﹤0.01% |
76,200
+24,200
| +47% | +$5.67M |
|
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.