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 | |
|---|---|---|---|---|---|---|
2101
CALL
Xylem
XYL
$28.8B
| $3.02M | ﹤0.01% |
22,200
+9,000
| +68% | +$1.29M |
|
2102
CALL
IQVIA
IQV
$40.1B
| $3.02M | ﹤0.01% |
13,400
-7,600
| -36% | -$1.65M |
|
2103
CALL
Ametek
AME
$58.8B
| $3.02M | ﹤0.01% |
14,700
-1,900
| -11% | -$370K |
|
2104
ProShares Ultra QQQ
QLD
$13.9B
| $3.01M | ﹤0.01% |
+42,818
| New | +$3.03M |
|
2105
CALL
Solventum
SOLV
$14.3B
| $3.01M | ﹤0.01% |
38,000
+18,000
| +90% | +$1.38M |
|
2106
PUT
Boston Properties
BXP
$10.8B
| $3.01M | ﹤0.01% |
44,600
-9,800
| -18% | -$697K |
|
2107
Fluor
FLR
$7.08B
| $3.01M | ﹤0.01% |
75,873
+13,323
| +21% | +$589K |
|
2108
CALL
Petrobras
PBR
$116B
| $3.01M | ﹤0.01% |
253,700
+212,000
| +508% | +$2.59M |
|
2109
Texas Instruments
TXN
$257B
| $3M | ﹤0.01% |
17,312
-9,973
| -37% | -$1.71M |
|
2110
PUT
Quest Diagnostics
DGX
$26.2B
| $3M | ﹤0.01% |
17,300
-1,900
| -10% | -$346K |
|
2111
PUT
Omega Healthcare
OHI
$13.8B
| $3M | ﹤0.01% |
67,700
+24,000
| +55% | +$1.03M |
|
2112
CALL
Viavi Solutions
VIAV
$9.47B
| $3M | ﹤0.01% |
168,200
+129,700
| +337% | +$2.09M |
|
|
KLAR
2113
CALL
Klarna Group
KLAR
$7.2B
| $3M | ﹤0.01% |
+103,600
| New | +$3.56M |
|
|
BTC
2114
PUT
Grayscale Bitcoin Mini Trust ETF
BTC
$3.36B
| $2.99M | ﹤0.01% |
+77,300
| New | +$3.43M |
|
2115
Navitas Semiconductor
NVTS
$3.55B
| $2.99M | ﹤0.01% |
418,919
-126,990
| -23% | -$1.22M |
|
2116
CALL
Northern Oil and Gas
NOG
$2.58B
| $2.99M | ﹤0.01% |
139,200
+59,500
| +75% | +$1.33M |
|
2117
PUT
Scotiabank
BNS
$108B
| $2.98M | ﹤0.01% |
40,500
-10,600
| -21% | -$721K |
|
2118
PUT
A.O. Smith
AOS
$8.65B
| $2.98M | ﹤0.01% |
+44,500
| New | +$3.01M |
|
2119
PUT
ATI
ATI
$31.3B
| $2.97M | ﹤0.01% |
25,900
-30,000
| -54% | -$2.92M |
|
2120
CALL
Western Union
WU
$2.2B
| $2.96M | ﹤0.01% |
317,500
+238,200
| +300% | +$2.1M |
|
|
YBIT
2121
YieldMax Bitcoin Option Income Strategy ETF
YBIT
$47.3M
| $2.95M | ﹤0.01% |
+87,419
| New | +$3.52M |
|
2122
CALL
Herbalife
HLF
$1.23B
| $2.94M | ﹤0.01% |
228,400
+43,900
| +24% | +$465K |
|
2123
CALL
United States Antimony
UAMY
$975M
| $2.94M | ﹤0.01% |
585,900
+375,500
| +178% | +$2.95M |
|
2124
PUT
Innovative Industrial Properties
IIPR
$1.67B
| $2.94M | ﹤0.01% |
62,100
+13,400
| +28% | +$694K |
|
2125
CALL
Hallador Energy
HNRG
$737M
| $2.94M | ﹤0.01% |
154,300
+108,200
| +235% | +$2.19M |
|
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.