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 | |
|---|---|---|---|---|---|---|
3526
PUT
Camping World
CWH
$653M
| $470K | ﹤0.01% |
48,300
+16,200
| +50% | +$201K |
|
3527
PUT
Hawaiian Electric Industries
HE
$2.14B
| $470K | ﹤0.01% |
38,200
-3,800
| -9% | -$44K |
|
3528
PUT
Ternium
TX
$10.6B
| $470K | ﹤0.01% |
+12,300
| New | +$452K |
|
3529
PUT
Perion Network
PERI
$386M
| $468K | ﹤0.01% |
48,900
+8,500
| +21% | +$82.5K |
|
3530
CALL
BrightSpring Health Services
BTSG
$12.4B
| $468K | ﹤0.01% |
+12,500
| New | +$419K |
|
3531
PUT
Harmony Biosciences
HRMY
$2.24B
| $468K | ﹤0.01% |
+12,500
| New | +$411K |
|
3532
PUT
Ericsson
ERIC
$33.3B
| $466K | ﹤0.01% |
48,300
+4,500
| +10% | +$42.6K |
|
|
MIAX
3533
CALL
Miami International Holdings
MIAX
$4.28B
| $466K | ﹤0.01% |
+10,500
| New | +$468K |
|
|
PPIH
3534
CALL
Perma-Pipe International
PPIH
$215M
| $465K | ﹤0.01% |
+15,300
| New | +$420K |
|
3535
Immersion
IMMR
$252M
| $463K | ﹤0.01% |
68,122
+28,206
| +71% | +$191K |
|
3536
PUT
YieldMax TSLA Option Income Strategy ETF
TSLY
$660M
| $462K | ﹤0.01% |
+12,300
| New | +$497K |
|
|
CGC
3537
PUT
Canopy Growth
CGC
$410M
| $461K | ﹤0.01% |
404,300
+82,700
| +26% | +$106K |
|
3538
PUT
Flowers Foods
FLO
$1.57B
| $460K | ﹤0.01% |
+42,300
| New | +$491K |
|
3539
Green Plains
GPRE
$1.03B
| $460K | ﹤0.01% |
46,949
-44,144
| -48% | -$444K |
|
3540
PUT
MINISO
MNSO
$3.75B
| $459K | ﹤0.01% |
24,500
-9,200
| -27% | -$191K |
|
3541
PUT
Sonoco
SON
$5.74B
| $458K | ﹤0.01% |
10,500
-32,100
| -75% | -$1.33M |
|
3542
Remitly
RELY
$5.14B
| $457K | ﹤0.01% |
33,105
+12,104
| +58% | +$176K |
|
3543
Winnebago Industries
WGO
$909M
| $456K | ﹤0.01% |
+11,255
| New | +$410K |
|
3544
Insperity
NSP
$2.01B
| $456K | ﹤0.01% |
11,774
+117
| +1% | +$4.67K |
|
3545
CALL
3D Systems Corp
DDD
$613M
| $456K | ﹤0.01% |
257,400
-85,500
| -25% | -$208K |
|
3546
Hercules Capital
HTGC
$3.23B
| $455K | ﹤0.01% |
+24,177
| New | +$436K |
|
3547
ODDITY Tech
ODD
$651M
| $454K | ﹤0.01% |
+11,303
| New | +$511K |
|
3548
PUT
Blue Owl Capital
OBDC
$5.74B
| $454K | ﹤0.01% |
+36,500
| New | +$464K |
|
3549
PUT
Plains GP Holdings
PAGP
$4.9B
| $454K | ﹤0.01% |
23,700
-15,600
| -40% | -$281K |
|
3550
PUT
Marqeta
MQ
$1.66B
| $453K | ﹤0.01% |
23,850
+1,050
| +5% | +$20.2K |
|
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.