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 | |
|---|---|---|---|---|---|---|
651
PUT
General Dynamics
GD
$106B
| $31.3M | 0.01% |
93,000
+26,200
| +39% | +$8.93M |
|
652
CALL
Hewlett Packard
HPE
$70.5B
| $31.3M | 0.01% |
1,302,700
-44,000
| -3% | -$1.04M |
|
653
CALL
W.W. Grainger
GWW
$60.2B
| $31.2M | 0.01% |
30,900
-18,200
| -37% | -$17.7M |
|
654
CALL
American Tower
AMT
$80.4B
| $31.2M | 0.01% |
177,500
+78,500
| +79% | +$14.3M |
|
655
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$746M
| $31.1M | 0.01% |
582,400
-187,500
| -24% | -$3.51M |
|
656
CALL
Altria Group
MO
$114B
| $31M | 0.01% |
538,000
+12,000
| +2% | +$725K |
|
657
PUT
Johnson Controls International
JCI
$92.2B
| $31M | 0.01% |
259,000
+121,400
| +88% | +$13.9M |
|
658
CALL
Veeva Systems
VEEV
$37.4B
| $30.9M | 0.01% |
138,300
+9,400
| +7% | +$2.49M |
|
659
PUT
Upstart Holdings
UPST
$3.03B
| $30.9M | 0.01% |
705,900
-347,700
| -33% | -$16M |
|
|
FIG
660
CALL
Figma
FIG
$12.4B
| $30.8M | 0.01% |
+823,700
| New | +$37.2M |
|
661
PUT
Dow Inc
DOW
$21.2B
| $30.8M | 0.01% |
1,315,700
-127,900
| -9% | -$2.94M |
|
662
CALL
NXP Semiconductors
NXPI
$60.4B
| $30.6M | 0.01% |
141,000
+51,600
| +58% | +$11.1M |
|
663
CALL
SolarEdge
SEDG
$1.95B
| $30.6M | 0.01% |
1,060,700
-60,100
| -5% | -$2.1M |
|
664
PUT
SLB Ltd
SLB
$75B
| $30.6M | 0.01% |
796,500
-51,300
| -6% | -$1.86M |
|
665
PUT
Nextpower Inc
NXT
$15.7B
| $30.1M | 0.01% |
345,200
-163,800
| -32% | -$14.9M |
|
666
CALL
Howmet Aerospace
HWM
$112B
| $29.9M | 0.01% |
145,700
-38,300
| -21% | -$7.62M |
|
667
CALL
Kroger
KR
$34.8B
| $29.9M | 0.01% |
477,900
-40,200
| -8% | -$2.63M |
|
668
PUT
EOG Resources
EOG
$70.7B
| $29.7M | 0.01% |
283,200
-14,700
| -5% | -$1.58M |
|
669
CALL
Rubrik
RBRK
$18.5B
| $29.7M | 0.01% |
387,900
+49,800
| +15% | +$3.82M |
|
670
CALL
United Therapeutics
UTHR
$23.1B
| $29.6M | 0.01% |
60,800
+13,800
| +29% | +$6.43M |
|
671
CALL
Sunrun
RUN
$2.46B
| $29.6M | 0.01% |
1,609,800
+233,100
| +17% | +$4.47M |
|
672
CALL
Medtronic
MDT
$112B
| $29.6M | 0.01% |
308,300
+84,300
| +38% | +$8.19M |
|
673
CALL
Nu Holdings
NU
$66.9B
| $29.5M | 0.01% |
1,760,000
-646,500
| -27% | -$10.4M |
|
674
CALL
Teva Pharmaceuticals
TEVA
$41.2B
| $29.3M | 0.01% |
940,400
+290,100
| +45% | +$7.15M |
|
675
CALL
Ross Stores
ROST
$81.9B
| $29.3M | 0.01% |
162,700
+30,300
| +23% | +$5.06M |
|
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.