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 | |
|---|---|---|---|---|---|---|
1351
PUT
BJs Wholesale Club
BJ
$12.3B
| $8.53M | ﹤0.01% |
94,800
+9,700
| +11% | +$890K |
|
1352
CALL
Gildan
GIL
$10.6B
| $8.53M | ﹤0.01% |
+136,500
| New | +$8.11M |
|
1353
CALL
BigBear.ai
BBAI
$1.55B
| $8.5M | ﹤0.01% |
1,574,600
+209,000
| +15% | +$1.37M |
|
1354
PUT
Fidelity Wise Origin Bitcoin Fund
FBTC
$11.9B
| $8.48M | ﹤0.01% |
+111,300
| New | +$9.71M |
|
1355
PUT
Novartis
NVS
$298B
| $8.48M | ﹤0.01% |
61,500
+26,300
| +75% | +$3.44M |
|
1356
CALL
Sable Offshore Corp
SOC
$976M
| $8.47M | ﹤0.01% |
939,200
+23,500
| +3% | +$222K |
|
1357
PUT
Devon Energy
DVN
$49.9B
| $8.47M | ﹤0.01% |
231,100
-170,400
| -42% | -$5.95M |
|
|
MDLN
1358
PUT
Medline Inc
MDLN
$29.7B
| $8.43M | ﹤0.01% |
+200,800
| New | +$8.48M |
|
1359
PUT
Samsara
IOT
$23.2B
| $8.39M | ﹤0.01% |
236,800
-27,500
| -10% | -$1.06M |
|
|
PSKY
1360
PUT
Paramount Skydance Corp
PSKY
$10.4B
| $8.39M | ﹤0.01% |
+626,100
| New | +$9.78M |
|
1361
PUT
Franco-Nevada
FNV
$46.5B
| $8.37M | ﹤0.01% |
40,400
-4,500
| -10% | -$913K |
|
1362
CALL
Vail Resorts
MTN
$5.21B
| $8.37M | ﹤0.01% |
63,000
+9,400
| +18% | +$1.38M |
|
1363
PUT
Mobileye
MBLY
$2.21B
| $8.34M | ﹤0.01% |
799,300
+92,300
| +13% | +$1.15M |
|
1364
PUT
Enterprise Products Partners
EPD
$82.2B
| $8.34M | ﹤0.01% |
260,000
+16,100
| +7% | +$509K |
|
1365
PUT
Paycom
PAYC
$9.62B
| $8.33M | ﹤0.01% |
52,300
+2,100
| +4% | +$372K |
|
1366
CALL
Hasbro
HAS
$13.3B
| $8.3M | ﹤0.01% |
101,200
-9,900
| -9% | -$776K |
|
1367
PUT
Canadian Solar
CSIQ
$1.06B
| $8.29M | ﹤0.01% |
348,600
+230,400
| +195% | +$5.02M |
|
1368
SentinelOne
S
$7.62B
| $8.27M | ﹤0.01% |
551,229
+285,145
| +107% | +$4.67M |
|
|
BLSH
1369
PUT
Bullish
BLSH
$3.72B
| $8.26M | ﹤0.01% |
+218,000
| New | +$10.6M |
|
1370
PUT
United States Natural Gas Fund
UNG
$497M
| $8.24M | ﹤0.01% |
672,400
+128,700
| +24% | +$1.73M |
|
|
EXAS
1371
CALL
DELISTED
Exact Sciences
EXAS
| $8.24M | ﹤0.01% |
81,100
+23,300
| +40% | +$1.87M |
|
1372
PUT
Bath & Body Works
BBWI
$3.89B
| $8.23M | ﹤0.01% |
409,700
-1,603,500
| -80% | -$35.4M |
|
1373
PUT
Sphere Entertainment
SPHR
$5.84B
| $8.21M | ﹤0.01% |
86,400
+8,800
| +11% | +$671K |
|
1374
CALL
Diageo
DEO
$54B
| $8.21M | ﹤0.01% |
95,200
+59,200
| +164% | +$5.45M |
|
1375
PUT
Zeta Global
ZETA
$6.91B
| $8.2M | ﹤0.01% |
403,000
+126,000
| +45% | +$2.35M |
|
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.