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 | |
|---|---|---|---|---|---|---|
326
CALL
Eaton
ETN
$174B
| $87.7M | 0.03% |
275,500
+31,700
| +13% | +$11.2M |
|
|
AXON
327
CALL
Axon Enterprise
AXON
$46.4B
| $87.1M | 0.03% |
153,300
-10,600
| -6% | -$6.58M |
|
328
PUT
Zscaler
ZS
$27.3B
| $86.6M | 0.03% |
384,900
-28,900
| -7% | -$8.16M |
|
|
SCHW
329
CALL
Charles Schwab
SCHW
$187B
| $86.4M | 0.03% |
864,900
-185,800
| -18% | -$17.6M |
|
330
PUT
ARK Innovation ETF
ARKK
$6.31B
| $86.3M | 0.03% |
1,121,900
-1,307,200
| -54% | -$108M |
|
331
PUT
McKesson
MCK
$101B
| $86.3M | 0.03% |
105,200
+28,500
| +37% | +$23.3M |
|
332
PUT
ConocoPhillips
COP
$141B
| $86.2M | 0.03% |
920,600
+268,300
| +41% | +$24.3M |
|
333
CALL
Elevance Health
ELV
$85.5B
| $86.1M | 0.03% |
245,700
+26,300
| +12% | +$8.89M |
|
334
PUT
Capital One
COF
$134B
| $85.4M | 0.03% |
352,400
-25,000
| -7% | -$5.57M |
|
335
CALL
Coca-Cola
KO
$375B
| $85.4M | 0.03% |
1,220,900
+156,800
| +15% | +$10.9M |
|
|
336
iShares Bitcoin Trust
IBIT
$47.8B
| $84.8M | 0.03% |
1,708,367
-2,945,662
| -63% | -$167M |
|
337
CALL
T-Mobile US
TMUS
$190B
| $84.8M | 0.03% |
417,600
+117,900
| +39% | +$25M |
|
338
PUT
Carnival Corporation Ltd
CCL
$39.7B
| $84.2M | 0.03% |
2,757,000
+182,500
| +7% | +$5.09M |
|
339
CALL
Cigna
CI
$74.6B
| $83.4M | 0.03% |
303,000
+140,100
| +86% | +$39.3M |
|
|
BMNR
340
PUT
BitMine Immersion Technologies
BMNR
$11.4B
| $83.4M | 0.03% |
+3,071,400
| New | +$125M |
|
341
CALL
Moderna
MRNA
$23.6B
| $83.2M | 0.03% |
2,820,800
+748,900
| +36% | +$20.3M |
|
342
PUT
ProShares UltraPro Short QQQ
SQQQ
$1.71B
| $82.8M | 0.03% |
+1,208,900
| New | +$85.5M |
|
|
XYZ
343
PUT
Block Inc
XYZ
$47.5B
| $82.3M | 0.03% |
1,264,000
-501,700
| -28% | -$34.6M |
|
344
PUT
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.11B
| $82.1M | 0.03% |
650,600
-35,200
| -5% | -$1.03M |
|
345
PUT
CVS Health
CVS
$122B
| $81.8M | 0.03% |
1,030,300
+45,000
| +5% | +$3.55M |
|
|
UCD
346
PUT
DELISTED
PROSHARES ULTRA BLOOMBERG COMMODITY
UCD
| $81.4M | 0.03% |
629,900
+268,100
| +74% | +$34.6M |
|
|
ETHA
347
CALL
iShares Ethereum Trust ETF
ETHA
$5.55B
| $81.1M | 0.03% |
+3,617,100
| New | +$94.6M |
|
348
PUT
AbbVie
ABBV
$435B
| $80.7M | 0.03% |
353,100
-143,000
| -29% | -$32.6M |
|
|
349
CALL
CVS Health
CVS
$122B
| $80.6M | 0.03% |
1,015,900
-282,600
| -22% | -$22.3M |
|
|
350
CALL
Zscaler
ZS
$27.3B
| $80.4M | 0.03% |
357,400
-85,500
| -19% | -$24.1M |
|
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.