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 | |
|---|---|---|---|---|---|---|
1051
PUT
FuelCell Energy
FCEL
$1.2B
| $20.3M | ﹤0.01% |
563,400
+422,800
| +301% | +$6.87M |
|
1052
Trade Desk
TTD
$6.78B
| $20.2M | ﹤0.01% |
1,119,722
+589,061
| +111% | +$12.5M |
|
1053
Floor & Decor
FND
$5.35B
| $20.2M | ﹤0.01% |
339,908
-497,043
| -59% | -$25.2M |
|
|
SHNY
1054
CALL
DELISTED
Direxion Daily Silver Miners Index Bull 2X Shares
SHNY
| $20.1M | ﹤0.01% |
807,700
-55,000
| -6% | -$1.37M |
|
1055
Williams-Sonoma
WSM
$26.8B
| $20.1M | ﹤0.01% |
+86,128
| New | +$17.1M |
|
1056
PUT
Keysight
KEYS
$55.7B
| $20.1M | ﹤0.01% |
57,300
+14,800
| +35% | +$5.05M |
|
1057
CALL
The Mosaic Company
MOS
$8.22B
| $20M | ﹤0.01% |
944,800
-42,200
| -4% | -$976K |
|
1058
PUT
Rio Tinto
RIO
$168B
| $20M | ﹤0.01% |
210,800
+24,900
| +13% | +$2.52M |
|
1059
PUT
Paycom
PAYC
$10.4B
| $20M | ﹤0.01% |
159,000
+73,300
| +86% | +$9.56M |
|
1060
CALL
Fastenal
FAST
$56.9B
| $19.9M | ﹤0.01% |
414,200
+38,300
| +10% | +$1.74M |
|
1061
CALL
Astrana Health
ASTH
$1.91B
| $19.9M | ﹤0.01% |
428,600
+418,900
| +4,319% | +$15.1M |
|
1062
CALL
Pinterest
PINS
$11.6B
| $19.9M | ﹤0.01% |
944,800
-975,300
| -51% | -$19.6M |
|
1063
FedEx
FDX
$76.3B
| $19.8M | ﹤0.01% |
+63,330
| New | +$23M |
|
1064
PUT
Natera
NTRA
$47.3B
| $19.8M | ﹤0.01% |
73,000
+47,000
| +181% | +$10M |
|
1065
PUT
NRG Energy
NRG
$25B
| $19.8M | ﹤0.01% |
135,600
+54,800
| +68% | +$7.89M |
|
|
USAR
1066
CALL
USA Rare Earth Inc
USAR
$4.31B
| $19.8M | ﹤0.01% |
916,800
+135,800
| +17% | +$3.1M |
|
1067
PUT
Diamondback Energy
FANG
$55.8B
| $19.7M | ﹤0.01% |
112,300
+1,800
| +2% | +$349K |
|
|
USAR
1068
PUT
USA Rare Earth Inc
USAR
$4.31B
| $19.7M | ﹤0.01% |
914,100
+532,100
| +139% | +$12.1M |
|
1069
PUT
Deckers Outdoor
DECK
$11.7B
| $19.7M | ﹤0.01% |
198,000
-5,100
| -3% | -$537K |
|
1070
CALL
Prologis
PLD
$131B
| $19.6M | ﹤0.01% |
144,900
-85,300
| -37% | -$12.1M |
|
1071
Comcast
CMCSA
$94B
| $19.6M | ﹤0.01% |
799,149
+497,449
| +165% | +$12.8M |
|
1072
CALL
CleanSpark
CLSK
$3.26B
| $19.6M | ﹤0.01% |
1,347,600
+214,000
| +19% | +$3.02M |
|
1073
CALL
SGHC Ltd
SGHC
$7.11B
| $19.6M | ﹤0.01% |
1,445,000
+498,200
| +53% | +$6.31M |
|
|
Q
1074
PUT
Qnity Electronics Inc
Q
$25.2B
| $19.5M | ﹤0.01% |
119,600
-34,200
| -22% | -$5.04M |
|
1075
CALL
Dutch Bros
BROS
$6.43B
| $19.5M | ﹤0.01% |
271,900
-44,200
| -14% | -$2.54M |
|
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.