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 | |
|---|---|---|---|---|---|---|
851
PUT
Biogen
BIIB
$30.7B
| $20M | 0.01% |
113,700
+55,600
| +96% | +$9.08M |
|
852
PUT
Tenet Healthcare
THC
$21.1B
| $20M | 0.01% |
100,600
+5,300
| +6% | +$1.07M |
|
853
Thermo Fisher Scientific
TMO
$220B
| $19.9M | 0.01% |
34,384
+8,900
| +35% | +$5.03M |
|
854
Occidental Petroleum
OXY
$55.9B
| $19.8M | 0.01% |
482,692
+351,660
| +268% | +$14.7M |
|
855
CALL
SoundHound AI
SOUN
$3.49B
| $19.8M | 0.01% |
1,988,000
+19,600
| +1% | +$282K |
|
856
CALL
Intercontinental Exchange
ICE
$84.4B
| $19.8M | 0.01% |
122,300
+16,900
| +16% | +$2.65M |
|
857
CALL
Teck Resources
TECK
$32.6B
| $19.7M | 0.01% |
411,900
+115,200
| +39% | +$4.99M |
|
858
CALL
Prologis
PLD
$133B
| $19.7M | 0.01% |
154,300
+23,300
| +18% | +$2.9M |
|
859
CALL
argenx
ARGX
$54.1B
| $19.7M | 0.01% |
23,400
-3,400
| -13% | -$2.91M |
|
860
CALL
Kinross Gold
KGC
$32.8B
| $19.6M | 0.01% |
694,700
+9,400
| +1% | +$244K |
|
|
ZVOL
861
PUT
Volatility Premium Plus ETF
ZVOL
$15.2M
| $19.5M | 0.01% |
+727,400
| New | +$8.14M |
|
862
PUT
Wheaton Precious Metals
WPM
$60.9B
| $19.5M | 0.01% |
166,100
-37,400
| -18% | -$4M |
|
863
PUT
Best Buy
BBY
$17.3B
| $19.4M | 0.01% |
290,400
-23,300
| -7% | -$1.78M |
|
|
PPLC
864
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $19.4M | 0.01% |
434,100
+24,600
| +6% | +$1.1M |
|
865
CALL
Vanguard High Dividend Yield ETF
VYM
$83.5B
| $19.4M | 0.01% |
134,900
+98,600
| +272% | +$14M |
|
866
Cigna
CI
$74.6B
| $19.3M | 0.01% |
70,304
-84,273
| -55% | -$23.6M |
|
|
Q
867
CALL
Qnity Electronics Inc
Q
$28.9B
| $19.3M | 0.01% |
+236,300
| New | +$20.1M |
|
868
PUT
On Holding
ONON
$12.5B
| $19.3M | 0.01% |
415,000
-75,500
| -15% | -$3.25M |
|
|
DOCU
869
PUT
DocuSign
DOCU
$11.5B
| $19.2M | 0.01% |
281,200
-63,900
| -19% | -$4.42M |
|
870
Comcast
CMCSA
$90B
| $19.2M | 0.01% |
641,921
+198,740
| +45% | +$5.67M |
|
871
PUT
State Street Communication Services Select Sector SPDR ETF
XLC
$22.5B
| $19.2M | 0.01% |
162,800
+14,600
| +10% | +$1.68M |
|
872
PUT
Cummins
CMI
$88.7B
| $19M | 0.01% |
37,300
-14,300
| -28% | -$6.68M |
|
|
ECHO
873
EchoStar
ECHO
$26.2B
| $18.9M | 0.01% |
173,529
+31,159
| +22% | +$2.54M |
|
874
3M
MMM
$94.3B
| $18.9M | 0.01% |
+117,791
| New | +$19.3M |
|
875
CALL
Ondas Inc
ONDS
$5.19B
| $18.8M | 0.01% |
1,929,500
+766,800
| +66% | +$6.16M |
|
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.