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 | |
|---|---|---|---|---|---|---|
676
CALL
Abbott
ABT
$187B
| $29.3M | 0.01% |
233,800
-123,300
| -35% | -$15.7M |
|
677
PUT
Autodesk
ADSK
$52.6B
| $29.3M | 0.01% |
98,900
-13,200
| -12% | -$3.99M |
|
|
SCIU
678
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $29.3M | 0.01% |
564,400
+43,000
| +8% | +$2.23M |
|
679
PUT
Monolithic Power Systems
MPWR
$68.9B
| $29.2M | 0.01% |
32,200
+2,500
| +8% | +$2.41M |
|
680
Iris Energy
IREN
$14.7B
| $29.2M | 0.01% |
772,063
+145,719
| +23% | +$7.52M |
|
681
CALL
Zillow
Z
$7.56B
| $29.1M | 0.01% |
427,100
-71,400
| -14% | -$5.17M |
|
682
CALL
Fortinet
FTNT
$117B
| $29M | 0.01% |
365,200
-114,100
| -24% | -$9.46M |
|
683
CALL
Five Below
FIVE
$13.5B
| $29M | 0.01% |
153,800
-16,600
| -10% | -$2.7M |
|
684
CALL
Wheaton Precious Metals
WPM
$60.9B
| $29M | 0.01% |
246,500
+51,500
| +26% | +$5.51M |
|
|
FISV
685
PUT
Fiserv Inc
FISV
$27.9B
| $28.9M | 0.01% |
430,200
+168,500
| +64% | +$14.1M |
|
686
CALL
Waste Management
WM
$91B
| $28.9M | 0.01% |
131,400
+51,500
| +64% | +$11M |
|
687
CALL
Dick's Sporting Goods
DKS
$18.7B
| $28.9M | 0.01% |
145,800
+36,600
| +34% | +$7.98M |
|
688
CALL
Invesco S&P SmallCap Low Volatility ETF
XSLV
$247M
| $28.9M | 0.01% |
282,800
+74,300
| +36% | +$3.43M |
|
689
CALL
Johnson Controls International
JCI
$92.2B
| $28.8M | 0.01% |
240,700
-8,100
| -3% | -$930K |
|
690
Marriott International
MAR
$92.3B
| $28.8M | 0.01% |
92,888
+4,482
| +5% | +$1.28M |
|
691
PUT
CAVA Group
CAVA
$7.27B
| $28.7M | 0.01% |
488,400
+3,400
| +0.7% | +$190K |
|
692
CALL
Snap
SNAP
$9.01B
| $28.5M | 0.01% |
3,533,800
-140,400
| -4% | -$1.11M |
|
693
Marvell Technology
MRVL
$196B
| $28.5M | 0.01% |
335,552
+297,682
| +786% | +$26.1M |
|
694
CALL
Peabody Energy
BTU
$2.9B
| $28.4M | 0.01% |
954,800
-113,600
| -11% | -$3.34M |
|
695
CALL
Jabil
JBL
$35.8B
| $28.3M | 0.01% |
124,000
+11,000
| +10% | +$2.35M |
|
696
CALL
State Street
STT
$50.7B
| $28.2M | 0.01% |
218,400
+111,900
| +105% | +$13.4M |
|
697
CALL
Toll Brothers
TOL
$14.5B
| $28.2M | 0.01% |
208,200
+66,500
| +47% | +$9.03M |
|
698
Dave Inc
DAVE
$4.06B
| $28.1M | 0.01% |
126,931
+104,282
| +460% | +$22.4M |
|
699
CALL
CleanSpark
CLSK
$3.16B
| $28.1M | 0.01% |
2,775,200
+93,100
| +3% | +$1.4M |
|
700
DoorDash
DASH
$93.7B
| $28M | 0.01% |
123,764
+86,255
| +230% | +$20.2M |
|
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.