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 | |
|---|---|---|---|---|---|---|
2901
PUT
Ero Copper
ERO
$3.81B
| $1.09M | ﹤0.01% |
38,700
+23,100
| +148% | +$538K |
|
2902
PUT
Tiptree Inc
TIPT
$673M
| $1.09M | ﹤0.01% |
59,700
+11,200
| +23% | +$204K |
|
2903
PUT
Gen Digital
GEN
$17.5B
| $1.09M | ﹤0.01% |
40,100
-13,700
| -25% | -$369K |
|
|
PLTD
2904
Direxion Dailly PLTR Bear 1X ETF
PLTD
$32.6M
| $1.09M | ﹤0.01% |
+165,376
| New | +$1.1M |
|
|
RNMN
2905
PUT
RiverNorth Market Neutral ETF
RNMN
$7.17M
| $1.09M | ﹤0.01% |
+114,200
| New | +$3.25M |
|
2906
PUT
ODDITY Tech
ODD
$585M
| $1.09M | ﹤0.01% |
27,100
-12,500
| -32% | -$565K |
|
2907
ProShares UltraShort Utilities
SDP
$4.37M
| $1.08M | ﹤0.01% |
+43,304
| New | +$1.03M |
|
2908
Invesco S&P SmallCap 600 Pure Growth ETF
RZG
$138M
| $1.08M | ﹤0.01% |
+19,853
| New | +$1.08M |
|
2909
PUT
ALPS REIT Dividend Dogs ETF
RDOG
$11.1M
| $1.08M | ﹤0.01% |
+22,900
| New | +$824K |
|
2910
PUT
CVR Partners
UAN
$1.24B
| $1.08M | ﹤0.01% |
+10,500
| New | +$999K |
|
2911
CALL
Macerich
MAC
$6.9B
| $1.07M | ﹤0.01% |
58,200
+24,400
| +72% | +$430K |
|
2912
CALL
IMAX
IMAX
$2.81B
| $1.07M | ﹤0.01% |
29,000
+13,400
| +86% | +$467K |
|
2913
PUT
BridgeBio Pharma
BBIO
$16.6B
| $1.07M | ﹤0.01% |
14,000
+2,700
| +24% | +$177K |
|
2914
CALL
Toro Company
TTC
$9.4B
| $1.07M | ﹤0.01% |
13,600
-4,000
| -23% | -$296K |
|
2915
CALL
MaxLinear
MXL
$6.21B
| $1.07M | ﹤0.01% |
61,400
+47,100
| +329% | +$767K |
|
2916
ProShares Ultra MSCI Emerging Markets
EET
$35.6M
| $1.07M | ﹤0.01% |
13,271
+2,565
| +24% | +$203K |
|
2917
CALL
US Foods
USFD
$23.9B
| $1.07M | ﹤0.01% |
14,200
-2,100
| -13% | -$158K |
|
2918
PUT
Vipshop
VIPS
$7.4B
| $1.07M | ﹤0.01% |
60,400
-125,500
| -68% | -$2.41M |
|
2919
CALL
Marqeta
MQ
$1.62B
| $1.07M | ﹤0.01% |
56,175
+17,475
| +45% | +$336K |
|
2920
CALL
KULR Technology Group
KULR
$127M
| $1.07M | ﹤0.01% |
+360,400
| New | +$1.32M |
|
|
CRON
2921
CALL
Cronos Group
CRON
$1.11B
| $1.07M | ﹤0.01% |
405,000
+217,600
| +116% | +$563K |
|
2922
PUT
Imperial Oil
IMO
$62.3B
| $1.06M | ﹤0.01% |
12,300
+2,300
| +23% | +$209K |
|
2923
PUT
Core & Main
CNM
$8.67B
| $1.06M | ﹤0.01% |
20,400
-15,900
| -44% | -$815K |
|
2924
Denison Mines
DNN
$2.95B
| $1.06M | ﹤0.01% |
397,855
+103,210
| +35% | +$281K |
|
|
HIMX
2925
CALL
Himax Technologies
HIMX
$2.57B
| $1.06M | ﹤0.01% |
129,200
+25,500
| +25% | +$216K |
|
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.