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 | |
|---|---|---|---|---|---|---|
|
GRRR
3126
PUT
Gorilla Technology Group
GRRR
$363M
| $835K | ﹤0.01% |
76,500
-5,000
| -6% | -$74.5K |
|
3127
Amkor Technology
AMKR
$13.3B
| $835K | ﹤0.01% |
21,138
-1,118
| -5% | -$39.8K |
|
3128
PUT
Krispy Kreme
DNUT
$548M
| $832K | ﹤0.01% |
206,900
+49,300
| +31% | +$195K |
|
3129
PUT
BellRing Brands
BRBR
$1.33B
| $829K | ﹤0.01% |
31,000
+13,900
| +81% | +$431K |
|
3130
PUT
Millicom
TIGO
$16.3B
| $826K | ﹤0.01% |
+14,900
| New | +$750K |
|
3131
PUT
W.P. Carey
WPC
$16B
| $824K | ﹤0.01% |
12,800
+400
| +3% | +$26.6K |
|
3132
PUT
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$606M
| $823K | ﹤0.01% |
+12,100
| New | +$852K |
|
3133
FT Vest US Equity Enhance & Moderate Buffer ETF January
XJAN
$41.9M
| $822K | ﹤0.01% |
+22,319
| New | +$812K |
|
3134
PUT
Dentsply Sirona
XRAY
$2.38B
| $822K | ﹤0.01% |
71,900
+35,400
| +97% | +$416K |
|
3135
BP
BP
$111B
| $821K | ﹤0.01% |
+23,648
| New | +$830K |
|
|
ACB
3136
CALL
Aurora Cannabis
ACB
$178M
| $821K | ﹤0.01% |
194,600
+116,700
| +150% | +$571K |
|
3137
PUT
Blackstone Secured Lending
BXSL
$5.62B
| $816K | ﹤0.01% |
31,000
| – | – |
|
3138
PUT
Shoals Technologies Group
SHLS
$1.44B
| $815K | ﹤0.01% |
95,900
-3,600
| -4% | -$32.3K |
|
|
CALY
3139
PUT
Callaway Golf Company
CALY
$3.09B
| $809K | ﹤0.01% |
69,300
-29,700
| -30% | -$313K |
|
3140
PUT
St. Joe Company
JOE
$3.77B
| $807K | ﹤0.01% |
+13,600
| New | +$762K |
|
3141
PUT
Procore
PCOR
$8.78B
| $807K | ﹤0.01% |
11,100
-1,900
| -15% | -$141K |
|
3142
CALL
Vornado Realty Trust
VNO
$7.21B
| $805K | ﹤0.01% |
+24,200
| New | +$884K |
|
3143
CALL
Vital Farms
VITL
$495M
| $805K | ﹤0.01% |
25,200
+5,900
| +31% | +$208K |
|
3144
Bank OZK
OZK
$5.61B
| $804K | ﹤0.01% |
+17,474
| New | +$817K |
|
3145
iShares MSCI France ETF
EWQ
$334M
| $804K | ﹤0.01% |
+17,871
| New | +$795K |
|
|
PRMB
3146
Primo Brands
PRMB
$8.52B
| $804K | ﹤0.01% |
+49,161
| New | +$909K |
|
3147
PUT
United Natural Foods
UNFI
$2.8B
| $801K | ﹤0.01% |
23,800
-29,700
| -56% | -$1.1M |
|
3148
Unusual Machines
UMAC
$1.36B
| $801K | ﹤0.01% |
62,860
+30,998
| +97% | +$364K |
|
3149
PUT
Corcept Therapeutics
CORT
$12.4B
| $800K | ﹤0.01% |
23,000
+11,200
| +95% | +$880K |
|
3150
ProShares UltraShort Real Estate
SRS
$16.3M
| $800K | ﹤0.01% |
+16,220
| New | +$784K |
|
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.