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 |
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 | Held Since | |
|---|---|---|---|---|---|---|---|
4126
CALL
Kaspi.kz JSC
KSPI
$17.4B
| $788K | ﹤0.01% |
9,100
+1,100
| +14% | +$93.3K |
2025 Q4
2 quarters
|
|
4127
PUT
Matsons
MATX
$6.84B
| $788K | ﹤0.01% |
4,100
-700
| -15% | -$128K |
2026 Q1
1 quarter
|
|
4128
Deutsche Bank
DB
$58.6B
| $788K | ﹤0.01% |
+23,328
| New | +$756K |
2026 Q2
0 quarters
|
|
4129
PUT
Alpha Architect US Quantitative Value ETF
QVAL
$651M
| $787K | ﹤0.01% |
+16,300
| New | +$891K |
2026 Q2
0 quarters
|
|
4130
CALL
Innovative Solutions & Support
IA
$352M
| $787K | ﹤0.01% |
43,700
+8,900
| +26% | +$172K |
2025 Q4
2 quarters
|
|
4131
PUT
Bakkt Inc
BKKT
$228M
| $786K | ﹤0.01% |
100,700
+35,400
| +54% | +$317K |
2025 Q3
3 quarters
|
|
4132
PUT
Jinko Holdings Limited
JKS
$440M
| $786K | ﹤0.01% |
46,800
-56,800
| -55% | -$1.24M |
2025 Q3
3 quarters
|
|
4133
PUT
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund
GRID
$11B
| $786K | ﹤0.01% |
4,100
+2,200
| +116% | +$413K |
2026 Q1
1 quarter
|
|
4134
PUT
Butterfly Network
BFLY
$1.8B
| $786K | ﹤0.01% |
93,300
-18,600
| -17% | -$96.3K |
2025 Q3
3 quarters
|
|
4135
PUT
TXO Partners LP
TXO
$787M
| $785K | ﹤0.01% |
62,800
+31,600
| +101% | +$401K |
2026 Q1
1 quarter
|
|
4136
CALL
ChargePoint
CHPT
$224M
| $784K | ﹤0.01% |
132,700
+37,100
| +39% | +$243K |
2025 Q4
2 quarters
|
|
4137
Ferrovial N.V. Ordinary Shares
FER
$35.7B
| $784K | ﹤0.01% |
11,427
+6,537
| +134% | +$446K |
2026 Q1
1 quarter
|
|
4138
PUT
Patterson-UTI
PTEN
$4.57B
| $783K | ﹤0.01% |
85,300
+48,300
| +131% | +$539K |
2024 Q4
6 quarters
|
|
4139
LATAM Airlines Group S.A.
LTM
$13.3B
| $783K | ﹤0.01% |
13,435
-15,992
| -54% | -$823K |
2026 Q1
1 quarter
|
|
4140
CALL
Energizer
ENR
$1.55B
| $783K | ﹤0.01% |
36,500
-5,900
| -14% | -$112K |
2025 Q3
3 quarters
|
|
4141
CALL
Workiva
WK
$4.67B
| $781K | ﹤0.01% |
16,100
+8,300
| +106% | +$428K |
2025 Q4
2 quarters
|
|
4142
CALL
indie Semiconductor
INDI
$378M
| $781K | ﹤0.01% |
173,900
-99,700
| -36% | -$398K |
2024 Q1
9 quarters
|
|
4143
PUT
Americas Gold and Silver
USAS
$1.04B
| $781K | ﹤0.01% |
165,400
+16,900
| +11% | +$97.5K |
2026 Q1
1 quarter
|
|
4144
CALL
Cronos Group
CRON
$1.23B
| $780K | ﹤0.01% |
280,600
-27,300
| -9% | -$73.2K |
2024 Q1
9 quarters
|
|
4145
Flowers Foods
FLO
$1.3B
| $780K | ﹤0.01% |
98,696
+62,746
| +175% | +$502K |
2025 Q3
3 quarters
|
|
4146
CALL
Kosmos Energy
KOS
$1.71B
| $779K | ﹤0.01% |
369,200
-62,500
| -14% | -$174K |
2025 Q2
4 quarters
|
|
4147
PUT
Revvity
RVTY
$17.7B
| $779K | ﹤0.01% |
7,000
+300
| +4% | +$28.9K |
2026 Q1
1 quarter
|
|
4148
CALL
Bumble
BMBL
$796M
| $778K | ﹤0.01% |
243,200
-154,900
| -39% | -$530K |
2021 Q1
21 quarters
|
|
4149
PUT
Federal Agricultural Mortgage Class A
AGM.A
| $777K | ﹤0.01% |
3,900
+1,700
| +77% | +$229K |
2026 Q1
1 quarter
|
|
4150
CALL
Brookfield Renewable
BEPC
$5.39B
| $776K | ﹤0.01% |
20,900
+3,100
| +17% | +$120K |
2025 Q4
2 quarters
|
|
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.