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 | |
|---|---|---|---|---|---|---|
2426
Ametek
AME
$54.5B
| $3.68M | ﹤0.01% |
15,197
+12,591
| +483% | +$2.9M |
|
2427
CALL
Axsome Therapeutics
AXSM
$10.8B
| $3.67M | ﹤0.01% |
15,000
+3,600
| +32% | +$781K |
|
2428
PUT
Watsco Inc
WSO
$13B
| $3.67M | ﹤0.01% |
8,800
-16,500
| -65% | -$6.63M |
|
|
QUBX
2429
CALL
Tradr 2X Long QUBT Daily ETF
QUBX
$21.2M
| $3.67M | ﹤0.01% |
70,500
-70,000
| -50% | -$924K |
|
2430
Steel Dynamics
STLD
$34.7B
| $3.64M | ﹤0.01% |
15,866
+5,229
| +49% | +$1.22M |
|
2431
Direxion Daily GOOGL Bull 2X ETF
GGLL
$918M
| $3.64M | ﹤0.01% |
31,999
+26,394
| +471% | +$3.16M |
|
2432
Burlington
BURL
$16.7B
| $3.64M | ﹤0.01% |
11,481
+2,846
| +33% | +$918K |
|
|
BLSH
2433
PUT
Bullish
BLSH
$5.46B
| $3.63M | ﹤0.01% |
155,000
+1,100
| +0.7% | +$38.2K |
|
|
PRMB
2434
Primo Brands
PRMB
$7.96B
| $3.63M | ﹤0.01% |
+148,577
| New | +$3.3M |
|
2435
CALL
Roivant Sciences
ROIV
$25.2B
| $3.63M | ﹤0.01% |
102,600
+78,900
| +333% | +$2.33M |
|
2436
CALL
SK Telecom
SKM
$14.9B
| $3.63M | ﹤0.01% |
112,900
+71,600
| +173% | +$2.65M |
|
2437
PUT
Verisk Analytics
VRSK
$24.2B
| $3.63M | ﹤0.01% |
20,200
+1,200
| +6% | +$211K |
|
2438
PUT
A.O. Smith
AOS
$8.22B
| $3.63M | ﹤0.01% |
57,800
+20,100
| +53% | +$1.22M |
|
2439
PUT
Vista Energy
VIST
$8.16B
| $3.62M | ﹤0.01% |
56,800
+11,500
| +25% | +$809K |
|
2440
Archer Aviation
ACHR
$4.4B
| $3.62M | ﹤0.01% |
766,134
+290,938
| +61% | +$1.69M |
|
2441
PUT
Grayscale Bitcoin Trust
GBTC
$12B
| $3.62M | ﹤0.01% |
79,600
-13,400
| -14% | -$747K |
|
|
ARCX
2442
PUT
Tradr 2X Long ACHR Daily ETF
ARCX
$7.48M
| $3.62M | ﹤0.01% |
+110,500
| New | +$1.95M |
|
2443
CALL
Ollie's Bargain Outlet
OLLI
$4.55B
| $3.62M | ﹤0.01% |
47,100
+21,600
| +85% | +$1.8M |
|
2444
Dick's Sporting Goods
DKS
$12.4B
| $3.62M | ﹤0.01% |
15,956
+14,614
| +1,089% | +$3.23M |
|
2445
PUT
United States Antimony
UAMY
$778M
| $3.61M | ﹤0.01% |
496,700
+55,000
| +12% | +$498K |
|
2446
Veeva Systems
VEEV
$44.5B
| $3.61M | ﹤0.01% |
+20,319
| New | +$3.35M |
|
2447
PUT
Birkenstock
BIRK
$5.61B
| $3.61M | ﹤0.01% |
83,800
+19,200
| +30% | +$776K |
|
2448
Mobileye
MBLY
$7.28B
| $3.6M | ﹤0.01% |
372,172
-114,784
| -24% | -$1.02M |
|
2449
CALL
Bank OZK
OZK
$5.5B
| $3.6M | ﹤0.01% |
69,100
+2,000
| +3% | +$97.4K |
|
2450
Ramaco Resources Class A
METC
$837M
| $3.6M | ﹤0.01% |
272,054
+114,212
| +72% | +$1.67M |
|
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.