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 | |
|---|---|---|---|---|---|---|
|
PPLT
876
CALL
abrdn Physical Platinum Shares ETF
PPLT
$2.23B
| $28.3M | 0.01% |
2,001,500
-1,349,500
| -40% | -$23.5M |
|
877
VanEck Gold Miners ETF
GDX
$30.8B
| $28.2M | 0.01% |
374,157
-323,818
| -46% | -$28.6M |
|
878
CALL
Alaska Air
ALK
$4.74B
| $28.1M | 0.01% |
538,700
+160,800
| +43% | +$6.87M |
|
879
CALL
GlobalFoundries
GFS
$24.7B
| $28.1M | 0.01% |
340,600
+74,000
| +28% | +$5.17M |
|
880
CALL
Biogen
BIIB
$32.6B
| $28.1M | 0.01% |
129,900
-17,800
| -12% | -$3.4M |
|
881
PUT
Automatic Data Processing
ADP
$111B
| $28.1M | 0.01% |
125,300
+6,700
| +6% | +$1.43M |
|
882
CALL
Allstate
ALL
$66B
| $28.1M | 0.01% |
117,900
-14,800
| -11% | -$3.22M |
|
883
PUT
Veeva Systems
VEEV
$44.5B
| $28M | 0.01% |
158,000
+61,200
| +63% | +$10.1M |
|
884
CALL
Colgate-Palmolive
CL
$71.4B
| $28M | 0.01% |
305,100
-92,100
| -23% | -$8.06M |
|
885
POET Technologies
POET
$1.34B
| $27.8M | 0.01% |
2,705,352
+2,610,705
| +2,758% | +$28.4M |
|
886
CALL
Abercrombie & Fitch
ANF
$6.59B
| $27.7M | 0.01% |
307,900
+76,200
| +33% | +$6.47M |
|
887
CALL
Hecla Mining
HL
$14B
| $27.7M | 0.01% |
1,795,100
-852,200
| -32% | -$15M |
|
888
PUT
PVH
PVH
$3.4B
| $27.7M | 0.01% |
372,800
+107,400
| +40% | +$9.19M |
|
889
PUT
Progressive
PGR
$128B
| $27.7M | 0.01% |
126,700
+74,600
| +143% | +$15M |
|
890
PUT
ProShares Ultra S&P500
SSO
$8.9B
| $27.5M | 0.01% |
310,000
+104,400
| +51% | +$6.68M |
|
891
CALL
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $27.5M | 0.01% |
220,700
+117,000
| +113% | +$3.17M |
|
|
ABVX
892
PUT
Abivax
ABVX
$9.98B
| $27.5M | 0.01% |
206,500
+131,900
| +177% | +$14.9M |
|
893
Sea Limited
SE
$69.5B
| $27.5M | 0.01% |
286,806
+74,585
| +35% | +$6.56M |
|
894
CALL
Paychex
PAYX
$43.7B
| $27.4M | 0.01% |
278,800
+138,800
| +99% | +$13.1M |
|
895
PUT
Flex
FLEX
$40.2B
| $27.4M | 0.01% |
168,900
+165,800
| +5,348% | +$20.1M |
|
896
Hims & Hers Health
HIMS
$6.46B
| $27.4M | 0.01% |
789,513
+280,938
| +55% | +$7.54M |
|
897
PUT
Innodata
INOD
$1.89B
| $27.3M | 0.01% |
361,600
+250,800
| +226% | +$18.4M |
|
898
CALL
On Holding
ONON
$9.36B
| $27.3M | 0.01% |
770,700
-213,500
| -22% | -$7.8M |
|
899
PUT
Viasat
VSAT
$10.4B
| $27.3M | 0.01% |
303,700
+222,700
| +275% | +$14.7M |
|
900
CALL
Domino's
DPZ
$11.3B
| $27.2M | 0.01% |
91,900
+41,900
| +84% | +$13.8M |
|
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.