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 | Miscellaneous | 98.48% |
| 2 | Technology | 0.56% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Communication Services | 0.16% |
| 5 | Financials | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
376
CALL
Ciena
CIEN
$47.2B
| $73.4M | 0.03% |
313,800
+105,000
| +50% | +$20.4M |
2018 Q4
28 quarters
|
|
377
CALL
ARK Innovation ETF
ARKK
$8.5B
| $72.9M | 0.03% |
947,700
-44,200
| -4% | -$3.66M |
2021 Q1
19 quarters
|
|
378
CALL
Expedia Group
EXPE
$34.7B
| $72.6M | 0.03% |
256,300
+101,500
| +66% | +$25.1M |
2018 Q4
28 quarters
|
|
379
CALL
Union Pacific
UNP
$172B
| $72.5M | 0.03% |
313,500
-30,100
| -9% | -$6.87M |
2020 Q3
21 quarters
|
|
380
PUT
Coherent
COHR
$45.9B
| $72.3M | 0.03% |
391,500
+163,400
| +72% | +$24.4M |
2023 Q3
9 quarters
|
|
|
381
PUT
JD.com
JD
$36.5B
| $72.3M | 0.03% |
2,517,700
-1,097,100
| -30% | -$34.3M |
2018 Q4
28 quarters
|
|
382
CALL
Freeport-McMoran
FCX
$99.9B
| $71.9M | 0.03% |
1,414,800
-4,900
| -0.3% | -$212K |
2018 Q4
28 quarters
|
|
383
CALL
Pfizer
PFE
$169B
| $71.8M | 0.03% |
2,881,700
+455,300
| +19% | +$11.5M |
2021 Q1
19 quarters
|
|
384
CALL
Valero Energy
VLO
$128B
| $71.6M | 0.03% |
440,000
+19,000
| +5% | +$3.22M |
2018 Q4
28 quarters
|
|
385
PUT
Affirm
AFRM
$25B
| $71.6M | 0.03% |
961,900
-194,600
| -17% | -$14M |
2021 Q2
18 quarters
|
|
386
PUT
Lowe's Companies
LOW
$111B
| $71.5M | 0.03% |
296,600
-363,000
| -55% | -$87.2M |
2018 Q4
28 quarters
|
|
387
CALL
Teradyne
TER
$50.8B
| $71.5M | 0.03% |
369,200
+167,900
| +83% | +$28.8M |
2024 Q1
7 quarters
|
|
388
CALL
Amgen
AMGN
$234B
| $70.4M | 0.03% |
215,100
-104,200
| -33% | -$33.1M |
2018 Q4
28 quarters
|
|
389
CALL
Charter Communications
CHTR
$12.6B
| $70.2M | 0.03% |
336,500
+86,300
| +34% | +$19.4M |
2022 Q3
13 quarters
|
|
390
CALL
Avis
CAR
$3.63B
| $70.2M | 0.03% |
547,300
-215,400
| -28% | -$30.1M |
2019 Q2
26 quarters
|
|
391
CALL
Zoom
ZM
$27.5B
| $69.7M | 0.03% |
808,300
+235,800
| +41% | +$19.8M |
2019 Q2
26 quarters
|
|
392
PUT
Accenture
ACN
$141B
| $69.7M | 0.03% |
259,600
-95,200
| -27% | -$24.2M |
2018 Q4
28 quarters
|
|
393
Intel
INTC
$475B
| $69.6M | 0.03% |
1,885,322
+559,000
| +42% | +$21.1M |
2024 Q4
4 quarters
|
|
394
CALL
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$22B
| $69.5M | 0.03% |
582,000
+98,400
| +20% | +$11.7M |
2018 Q4
28 quarters
|
|
|
395
PUT
Avis
CAR
$3.63B
| $69.5M | 0.03% |
541,500
-153,500
| -22% | -$21.4M |
2018 Q4
28 quarters
|
|
396
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$30.6B
| $69M | 0.03% |
444,600
+237,500
| +115% | +$36.5M |
2022 Q3
13 quarters
|
|
397
CALL
Duolingo
DUOL
$6.63B
| $68.6M | 0.02% |
391,000
+16,400
| +4% | +$3.86M |
2024 Q1
7 quarters
|
|
398
PUT
Philip Morris
PM
$320B
| $68.4M | 0.02% |
426,300
-64,100
| -13% | -$9.93M |
2022 Q3
13 quarters
|
|
399
PUT
D-Wave Quantum Inc
QBTS
$4.47B
| $67.9M | 0.02% |
2,598,300
+1,100,200
| +73% | +$32M |
2024 Q4
4 quarters
|
|
400
PUT
Wayfair
W
$14.7B
| $67.6M | 0.02% |
673,700
-139,500
| -17% | -$13.4M |
2020 Q1
23 quarters
|
|
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 Miscellaneous at 98% of assets, up from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.