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 | |
|---|---|---|---|---|---|---|
2751
CALL
Aurora
AUR
$13.6B
| $1.35M | ﹤0.01% |
351,800
-34,100
| -9% | -$156K |
|
2752
YieldMax NVDA Option Income Strategy ETF
NVDY
$1.43B
| $1.35M | ﹤0.01% |
92,423
-434,711
| -82% | -$6.69M |
|
2753
ProShares Ultra Industrials
UXI
$33M
| $1.35M | ﹤0.01% |
29,089
-7,865
| -21% | -$360K |
|
2754
Celanese
CE
$4.95B
| $1.35M | ﹤0.01% |
31,868
-6,244
| -16% | -$255K |
|
2755
CALL
Allegiant Air
ALGT
$2.4B
| $1.35M | ﹤0.01% |
15,800
+100
| +0.6% | +$7.15K |
|
|
FETH
2756
Fidelity Ethereum Fund
FETH
$1B
| $1.35M | ﹤0.01% |
45,499
-107,162
| -70% | -$3.7M |
|
|
ARR
2757
PUT
Armour Residential REIT
ARR
$2.37B
| $1.34M | ﹤0.01% |
76,000
+15,500
| +26% | +$257K |
|
|
TUZ
2758
CALL
DELISTED
PIMCO 1-3 Year U.S. Treasury Index Exchange-Traded Fund
TUZ
| $1.34M | ﹤0.01% |
20,900
+10,700
| +105% | +$687K |
|
2759
CALL
Banc of California
BANC
$3.08B
| $1.34M | ﹤0.01% |
69,400
-116,000
| -63% | -$2.08M |
|
2760
CALL
ING
ING
$101B
| $1.34M | ﹤0.01% |
47,700
+24,200
| +103% | +$624K |
|
2761
Canadian National Railway
CNI
$76.3B
| $1.33M | ﹤0.01% |
13,496
-9,319
| -41% | -$896K |
|
2762
PUT
Blackstone Mortgage Trust
BXMT
$2.47B
| $1.33M | ﹤0.01% |
69,300
+32,100
| +86% | +$609K |
|
|
CIVI
2763
CALL
DELISTED
Civitas Resources
CIVI
| $1.32M | ﹤0.01% |
48,700
-106,700
| -69% | -$3.09M |
|
2764
CALL
Cooper Companies
COO
$15B
| $1.31M | ﹤0.01% |
+16,000
| New | +$1.2M |
|
2765
CALL
Vermilion Energy
VET
$1.74B
| $1.31M | ﹤0.01% |
156,900
+4,400
| +3% | +$36.3K |
|
2766
CALL
Coca-Cola Europacific Partners
CCEP
$46.9B
| $1.31M | ﹤0.01% |
+14,400
| New | +$1.3M |
|
2767
PUT
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$30.6M
| $1.31M | ﹤0.01% |
24,400
-32,300
| -57% | -$1.81M |
|
2768
PUT
Liberty Energy
LBRT
$3.51B
| $1.31M | ﹤0.01% |
70,700
+27,400
| +63% | +$458K |
|
2769
Zillow
Z
$7.66B
| $1.3M | ﹤0.01% |
19,129
+3,991
| +26% | +$289K |
|
2770
PUT
ArcelorMittal
MT
$55.7B
| $1.3M | ﹤0.01% |
28,600
-9,400
| -25% | -$386K |
|
2771
Direxion Daily AAPL Bull 2X ETF
AAPU
$187M
| $1.3M | ﹤0.01% |
38,810
-33,464
| -46% | -$1.17M |
|
2772
CALL
CVR Partners
UAN
$1.27B
| $1.3M | ﹤0.01% |
+12,700
| New | +$1.21M |
|
|
CGC
2773
CALL
Canopy Growth
CGC
$420M
| $1.3M | ﹤0.01% |
1,136,900
+396,900
| +54% | +$510K |
|
2774
Birkenstock
BIRK
$6.9B
| $1.3M | ﹤0.01% |
31,685
-66,273
| -68% | -$2.81M |
|
|
WRD
2775
CALL
WeRide Inc
WRD
$2.08B
| $1.3M | ﹤0.01% |
+149,200
| New | +$1.39M |
|
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.