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 | |
|---|---|---|---|---|---|---|
2201
PUT
Zebra Technologies
ZBRA
$18.1B
| $2.62M | ﹤0.01% |
+10,800
| New | +$2.89M |
|
2202
CALL
NOV
NOV
$7.49B
| $2.62M | ﹤0.01% |
167,700
+57,000
| +51% | +$846K |
|
2203
Harrow
HROW
$1.48B
| $2.61M | ﹤0.01% |
53,327
+28,456
| +114% | +$1.19M |
|
2204
PUT
GlobalFoundries
GFS
$27.9B
| $2.61M | ﹤0.01% |
74,800
+21,100
| +39% | +$751K |
|
2205
CALL
BlackBerry
BB
$5.26B
| $2.6M | ﹤0.01% |
685,600
-217,400
| -24% | -$956K |
|
2206
CALL
ARK 21Shares Bitcoin ETF
ARKB
$2.42B
| $2.58M | ﹤0.01% |
+88,800
| New | +$2.95M |
|
2207
PUT
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $2.58M | ﹤0.01% |
25,100
-27,100
| -52% | -$756K |
|
2208
PUT
Equinox Gold
EQX
$13.6B
| $2.58M | ﹤0.01% |
183,600
+10,000
| +6% | +$126K |
|
|
ETHU
2209
2x Ether ETF
ETHU
$713M
| $2.58M | ﹤0.01% |
+47,122
| New | +$3.99M |
|
2210
CALL
Enovix
ENVX
$1.05B
| $2.58M | ﹤0.01% |
352,300
-88,700
| -20% | -$859K |
|
|
ABK
2211
CALL
DELISTED
Ambac Financial Group
ABK
| $2.57M | ﹤0.01% |
330,100
+90,700
| +38% | +$706K |
|
2212
PUT
TTM Technologies
TTMI
$13.8B
| $2.57M | ﹤0.01% |
37,200
+9,000
| +32% | +$587K |
|
2213
Shopify
SHOP
$196B
| $2.56M | ﹤0.01% |
+15,927
| New | +$2.56M |
|
2214
CALL
Dolby
DLB
$5.75B
| $2.56M | ﹤0.01% |
+39,900
| New | +$2.68M |
|
2215
Global X Silver Miners ETF NEW
SIL
$4.86B
| $2.56M | ﹤0.01% |
+30,677
| New | +$2.26M |
|
2216
PUT
Keysight
KEYS
$58.7B
| $2.56M | ﹤0.01% |
12,600
-22,900
| -65% | -$4.25M |
|
2217
PUT
Levi Strauss
LEVI
$8.75B
| $2.56M | ﹤0.01% |
123,400
+31,600
| +34% | +$681K |
|
2218
CALL
Noble Corp
NE
$7.1B
| $2.56M | ﹤0.01% |
90,600
-15,800
| -15% | -$467K |
|
|
CTRA
2219
PUT
DELISTED
Coterra Energy
CTRA
| $2.56M | ﹤0.01% |
97,200
-16,300
| -14% | -$411K |
|
2220
PUT
uniQure
QURE
$3.12B
| $2.56M | ﹤0.01% |
+106,900
| New | +$4.13M |
|
2221
B2Gold
BTG
$6.7B
| $2.56M | ﹤0.01% |
566,854
+482,274
| +570% | +$2.25M |
|
2222
Kratos Defense & Security Solutions
KTOS
$12B
| $2.55M | ﹤0.01% |
33,628
+13,733
| +69% | +$1.12M |
|
2223
PUT
Herbalife
HLF
$1.23B
| $2.55M | ﹤0.01% |
198,000
+31,100
| +19% | +$329K |
|
2224
PUT
Kodiak Gas Services
KGS
$6.17B
| $2.55M | ﹤0.01% |
68,200
+28,000
| +70% | +$990K |
|
2225
CALL
Warner Music
WMG
$13.1B
| $2.55M | ﹤0.01% |
83,100
+53,900
| +185% | +$1.65M |
|
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.