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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2301
Kratos Defense & Security Solutions
KTOS
$11.8B
| $1.82M | ﹤0.01% |
19,895
-56,340
| -74% | -$3.61M |
|
2302
NuScale Power
SMR
$4.04B
| $1.81M | ﹤0.01% |
+50,185
| New | +$2M |
|
2303
CALL
Klaviyo
KVYO
$5.47B
| $1.81M | ﹤0.01% |
65,200
-5,800
| -8% | -$187K |
|
2304
Aurora
AUR
$13.4B
| $1.8M | ﹤0.01% |
334,110
+110,603
| +49% | +$649K |
|
2305
Baxter International
BAX
$13.9B
| $1.8M | ﹤0.01% |
78,903
+16,917
| +27% | +$429K |
|
2306
GXO Logistics
GXO
$5.52B
| $1.8M | ﹤0.01% |
+33,941
| New | +$1.75M |
|
2307
PUT
GigaCloud Technology
GCT
$1.9B
| $1.79M | ﹤0.01% |
63,100
-7,100
| -10% | -$185K |
|
2308
Darling Ingredients
DAR
$10B
| $1.79M | ﹤0.01% |
57,996
+23,840
| +70% | +$796K |
|
2309
Warner Bros
WBD
$69.6B
| $1.79M | ﹤0.01% |
+91,552
| New | +$1.25M |
|
2310
PUT
Xylem
XYL
$28.5B
| $1.78M | ﹤0.01% |
+12,100
| New | +$1.68M |
|
2311
GSK
GSK
$101B
| $1.78M | ﹤0.01% |
+41,319
| New | +$1.61M |
|
2312
CALL
Goodyear
GT
$1.78B
| $1.78M | ﹤0.01% |
238,400
-81,000
| -25% | -$761K |
|
2313
PUT
Polaris
PII
$3.9B
| $1.78M | ﹤0.01% |
30,600
-12,200
| -29% | -$658K |
|
2314
AAR Corp
AIR
$5.96B
| $1.78M | ﹤0.01% |
+19,799
| New | +$1.51M |
|
2315
CALL
Healthpeak Properties
DOC
$14.2B
| $1.78M | ﹤0.01% |
92,700
-1,300
| -1% | -$23.3K |
|
2316
Invesco Zacks Mid-Cap ETF
CZA
$193M
| $1.77M | ﹤0.01% |
+16,142
| New | +$1.75M |
|
2317
CALL
Ionis Pharmaceuticals
IONS
$9.39B
| $1.77M | ﹤0.01% |
+27,100
| New | +$1.32M |
|
2318
Atlas Energy Solutions
AESI
$1.47B
| $1.77M | ﹤0.01% |
155,579
-23,761
| -13% | -$291K |
|
|
EXAS
2319
DELISTED
Exact Sciences
EXAS
| $1.77M | ﹤0.01% |
+32,273
| New | +$1.61M |
|
2320
CALL
Krispy Kreme
DNUT
$569M
| $1.76M | ﹤0.01% |
455,200
+309,100
| +212% | +$1.07M |
|
2321
Intuitive Machines
LUNR
$2.82B
| $1.76M | ﹤0.01% |
167,193
-50,172
| -23% | -$509K |
|
2322
CALL
MKS Inc
MKSI
$20.7B
| $1.76M | ﹤0.01% |
+14,200
| New | +$1.51M |
|
2323
PUT
Planet Labs
PL
$8.82B
| $1.75M | ﹤0.01% |
135,100
+67,300
| +99% | +$519K |
|
|
2324
PUT
Atlas Energy Solutions
AESI
$1.47B
| $1.75M | ﹤0.01% |
154,200
-29,500
| -16% | -$361K |
|
2325
CALL
BlackSky Technology
BKSY
$1.3B
| $1.75M | ﹤0.01% |
87,000
+34,100
| +64% | +$665K |
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.