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 | |
|---|---|---|---|---|---|---|
951
PUT
Centrus Energy
LEU
$3.4B
| $24.8M | 0.01% |
147,800
+33,800
| +30% | +$6.32M |
|
952
CALL
Lemonade
LMND
$4.26B
| $24.8M | 0.01% |
380,500
-5,800
| -2% | -$339K |
|
953
CALL
HF Sinclair
DINO
$18.9B
| $24.6M | 0.01% |
353,200
+268,100
| +315% | +$17.8M |
|
954
CALL
Pagaya Technologies
PGY
$1.91B
| $24.6M | 0.01% |
1,347,900
+916,000
| +212% | +$13M |
|
955
Vertiv
VRT
$103B
| $24.6M | 0.01% |
73,357
+53,248
| +265% | +$16.9M |
|
956
CALL
Crocs
CROX
$5.56B
| $24.5M | 0.01% |
203,000
-3,800
| -2% | -$415K |
|
957
CALL
Motorola Solutions
MSI
$78.2B
| $24.5M | 0.01% |
58,900
+34,500
| +141% | +$14.4M |
|
958
PUT
Rubrik
RBRK
$19.1B
| $24.1M | 0.01% |
300,600
+98,500
| +49% | +$6.19M |
|
959
PUT
General Dynamics
GD
$99B
| $24.1M | 0.01% |
68,000
-77,200
| -53% | -$26.4M |
|
960
CALL
Ross Stores
ROST
$74B
| $24.1M | 0.01% |
113,100
-21,200
| -16% | -$4.77M |
|
|
FIGR
961
CALL
Figure Technology Solutions
FIGR
$8.12B
| $24M | 0.01% |
780,400
+173,000
| +28% | +$5.78M |
|
962
CALL
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$4.34B
| $24M | 0.01% |
372,600
+138,100
| +59% | +$9.12M |
|
963
CALL
TotalEnergies
TTE
$197B
| $23.9M | 0.01% |
307,900
+114,400
| +59% | +$10.1M |
|
964
PUT
Warner Bros
WBD
$71.1B
| $23.9M | 0.01% |
894,800
-273,300
| -23% | -$7.39M |
|
965
CALL
Ambarella
AMBA
$2.78B
| $23.8M | 0.01% |
276,900
+148,000
| +115% | +$10.2M |
|
966
Roblox
RBLX
$29.7B
| $23.8M | 0.01% |
436,858
+274,890
| +170% | +$13.7M |
|
967
PUT
Vanguard Morningstar Growth ETF
VUG
$229B
| $23.6M | 0.01% |
274,000
-98,000
| -26% | -$8.25M |
|
968
CALL
Sunrun
RUN
$2.15B
| $23.6M | 0.01% |
1,763,200
+663,000
| +60% | +$8.95M |
|
969
CALL
Equinix
EQIX
$103B
| $23.6M | 0.01% |
22,600
-13,000
| -37% | -$13.9M |
|
970
PUT
Medtronic
MDT
$119B
| $23.5M | 0.01% |
301,000
+133,900
| +80% | +$10.8M |
|
971
Agnico Eagle Mines
AEM
$105B
| $23.5M | 0.01% |
+151,768
| New | +$28.1M |
|
972
CALL
Vishay Intertechnology
VSH
$4.67B
| $23.5M | 0.01% |
437,400
+412,300
| +1,643% | +$16.9M |
|
973
PUT
Hilton Worldwide
HLT
$70.7B
| $23.3M | 0.01% |
70,600
-71,200
| -50% | -$23.4M |
|
974
CALL
TD Synnex
SNX
$21B
| $23.2M | 0.01% |
86,900
+70,500
| +430% | +$17M |
|
975
CALL
Las Vegas Sands
LVS
$28.8B
| $23.2M | 0.01% |
501,600
+161,000
| +47% | +$8.35M |
|
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.