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 |
iShares Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
IPFF
776
CALL
DELISTED
iShares International Preferred Stock ETF
IPFF
| $23.3M | 0.01% |
309,400
+91,500
| +42% | +$6.9M |
|
777
CALL
Emerson Electric
EMR
$88.3B
| $23.3M | 0.01% |
175,600
-103,700
| -37% | -$13.8M |
|
778
CALL
Biogen
BIIB
$30.7B
| $23.3M | 0.01% |
132,400
+21,400
| +19% | +$3.5M |
|
779
CALL
ON Semiconductor
ON
$31.6B
| $23.3M | 0.01% |
430,300
-150,900
| -26% | -$7.74M |
|
780
CALL
Clorox
CLX
$12.7B
| $23.3M | 0.01% |
230,800
+84,600
| +58% | +$9.18M |
|
781
PUT
Kimberly-Clark
KMB
$36.5B
| $23.2M | 0.01% |
230,200
+155,700
| +209% | +$17M |
|
782
PUT
Warner Bros
WBD
$67.1B
| $23.2M | 0.01% |
805,600
-56,500
| -7% | -$1.32M |
|
783
PUT
Celsius Holdings
CELH
$7.03B
| $23M | 0.01% |
501,900
+99,200
| +25% | +$5M |
|
784
Uber
UBER
$153B
| $22.9M | 0.01% |
280,519
+222,466
| +383% | +$20M |
|
785
CALL
UiPath
PATH
$7.8B
| $22.9M | 0.01% |
1,398,400
+130,200
| +10% | +$2.03M |
|
786
CALL
Best Buy
BBY
$17.3B
| $22.8M | 0.01% |
340,900
-47,900
| -12% | -$3.65M |
|
787
Advanced Micro Devices
AMD
$789B
| $22.8M | 0.01% |
106,511
-145,645
| -58% | -$32.7M |
|
788
CALL
Toast
TOST
$19.9B
| $22.7M | 0.01% |
639,000
+120,500
| +23% | +$4.34M |
|
789
PUT
Vanguard Information Technology ETF
VGT
$149B
| $22.7M | 0.01% |
240,800
+42,400
| +21% | +$4.03M |
|
790
PUT
GE HealthCare
GEHC
$32.4B
| $22.7M | 0.01% |
276,300
+110,300
| +66% | +$8.59M |
|
791
CALL
Simon Property Group
SPG
$72.3B
| $22.6M | 0.01% |
121,900
+38,100
| +45% | +$6.92M |
|
792
PUT
Hewlett Packard
HPE
$70.5B
| $22.5M | 0.01% |
935,600
+11,600
| +1% | +$273K |
|
793
CALL
State Street Communication Services Select Sector SPDR ETF
XLC
$22.5B
| $22.4M | 0.01% |
190,200
-25,500
| -12% | -$2.93M |
|
794
CALL
Kratos Defense & Security Solutions
KTOS
$11.4B
| $22.3M | 0.01% |
294,200
+9,000
| +3% | +$737K |
|
795
PUT
United Therapeutics
UTHR
$23.1B
| $22.3M | 0.01% |
45,800
+12,900
| +39% | +$6.01M |
|
796
PUT
Cheniere Energy
LNG
$52.9B
| $22.2M | 0.01% |
114,400
-5,300
| -4% | -$1.11M |
|
|
797
CALL
Cheniere Energy
LNG
$52.9B
| $22.2M | 0.01% |
114,200
+7,200
| +7% | +$1.51M |
|
798
PUT
Teva Pharmaceuticals
TEVA
$41.2B
| $22.2M | 0.01% |
710,800
+205,200
| +41% | +$5.06M |
|
799
CALL
Parker-Hannifin
PH
$135B
| $22.1M | 0.01% |
25,200
+5,200
| +26% | +$4.26M |
|
800
CALL
Duke Energy
DUK
$97.3B
| $22.1M | 0.01% |
188,500
+51,200
| +37% | +$6.25M |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.