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 |
Sprott Physical Silver Trust
PSLV
|
+$344M |
| 2 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$297M |
| 3 |
Tesla
TSLA
|
+$235M |
| 4 |
Sprott Physical Gold and Silver Trust
CEF
|
+$177M |
| 5 |
Meta Platforms (Facebook)
META
|
+$120M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$426M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$390M |
| 3 |
NVIDIA
NVDA
|
+$72.8M |
| 4 |
Broadcom
AVGO
|
+$66.7M |
| 5 |
AST SpaceMobile
ASTS
|
+$62.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.58% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Financials | 0.16% |
| 4 | Communication Services | 0.13% |
| 5 | Industrials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1926
CALL
MACOM Technology Solutions
MTSI
$20.6B
| $4.2M | ﹤0.01% |
+18,900
| New | +$4.22M |
|
1927
CALL
PureCycle Technologies
PCT
$1.22B
| $4.2M | ﹤0.01% |
808,500
-565,400
| -41% | -$4.71M |
|
1928
PUT
Churchill Downs
CHDN
$5.83B
| $4.2M | ﹤0.01% |
+46,700
| New | +$4.44M |
|
1929
PUT
Rambus
RMBS
$10.9B
| $4.19M | ﹤0.01% |
48,700
+9,000
| +23% | +$898K |
|
1930
State Street SPDR S&P Homebuilders ETF
XHB
$1.7B
| $4.19M | ﹤0.01% |
+42,439
| New | +$4.65M |
|
|
WCC
1931
PUT
WESCO International
WCC
$15.5B
| $4.19M | ﹤0.01% |
15,300
-500
| -3% | -$140K |
|
1932
EQT Corp
EQT
$30.7B
| $4.19M | ﹤0.01% |
65,775
-139,357
| -68% | -$8.17M |
|
1933
CALL
Rush Street Interactive
RSI
$3.55B
| $4.18M | ﹤0.01% |
192,200
+57,100
| +42% | +$1.09M |
|
1934
PUT
SentinelOne
S
$6.67B
| $4.18M | ﹤0.01% |
324,500
-245,500
| -43% | -$3.41M |
|
1935
Global X Copper Miners ETF NEW
COPX
$6.78B
| $4.18M | ﹤0.01% |
+54,738
| New | +$4.53M |
|
1936
BorgWarner
BWA
$12.6B
| $4.18M | ﹤0.01% |
76,955
+52,197
| +211% | +$2.75M |
|
1937
CALL
Liquidia Corp
LQDA
$6.85B
| $4.17M | ﹤0.01% |
110,600
+48,500
| +78% | +$1.8M |
|
1938
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.68B
| $4.17M | ﹤0.01% |
22,570
-8,162
| -27% | -$1.76M |
|
1939
PUT
Nasdaq
NDAQ
$52B
| $4.17M | ﹤0.01% |
49,100
+8,800
| +22% | +$789K |
|
1940
CALL
BigBear.ai
BBAI
$1.35B
| $4.17M | ﹤0.01% |
1,184,100
-390,500
| -25% | -$1.81M |
|
1941
CALL
Stellantis
STLA
$16.7B
| $4.17M | ﹤0.01% |
587,700
-12,300
| -2% | -$103K |
|
1942
CALL
Vanguard Consumer Discretionary ETF
VCR
$6.1B
| $4.16M | ﹤0.01% |
+21,900
| New | +$8.45M |
|
1943
CALL
Zebra Technologies
ZBRA
$12.6B
| $4.16M | ﹤0.01% |
19,900
+9,600
| +93% | +$2.25M |
|
1944
PUT
PENN Entertainment
PENN
$2.84B
| $4.16M | ﹤0.01% |
276,700
+120,400
| +77% | +$1.67M |
|
1945
PUT
Xylem
XYL
$28.7B
| $4.16M | ﹤0.01% |
+34,800
| New | +$4.56M |
|
1946
PUT
EPAM Systems
EPAM
$4.67B
| $4.16M | ﹤0.01% |
30,700
+12,100
| +65% | +$2.07M |
|
1947
CALL
OneMain Financial
OMF
$6.95B
| $4.16M | ﹤0.01% |
77,700
-5,600
| -7% | -$332K |
|
1948
CALL
Ferguson
FERG
$44.4B
| $4.15M | ﹤0.01% |
17,800
-24,500
| -58% | -$5.96M |
|
1949
Five Below
FIVE
$11.3B
| $4.15M | ﹤0.01% |
18,171
-13,435
| -43% | -$2.81M |
|
1950
monday.com
MNDY
$3.29B
| $4.14M | ﹤0.01% |
59,907
+30,135
| +101% | +$2.89M |
|
Similar funds
IMC Chicago's Q1 2026 Portfolio in Review
As of Q1 2026, IMC Chicago held 6,062 positions worth $278B, up 1.1% from $275B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $22.2B of net new capital in Q1 2026, opening 2,049 new positions and adding to 1,848 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
By sector, the portfolio is most concentrated in Technology at 0.58% of assets, up from 0.56% a quarter earlier, followed by Consumer Discretionary and Financials.
On the sell side, the largest reduction was Broadcom, an estimated $66.7M trimmed.
- IMC Chicago's largest Q1 2026 buy was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
- IMC Chicago added most to Sprott Physical Silver Trust in Q1 2026, an estimated $344M increase.
- IMC Chicago's biggest Q1 2026 reduction was Broadcom, cutting an estimated $66.7M.
- IMC Chicago fully exited Invesco QQQ Trust in Q1 2026, selling an estimated $426M.
- IMC Chicago's ten largest holdings make up 38% of its $278B portfolio in Q1 2026.
- IMC Chicago opened 2,049 new positions and closed 389 in Q1 2026.
- IMC Chicago's portfolio value rose 1.1% quarter-over-quarter to $278B.
Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.