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 | |
|---|---|---|---|---|---|---|
251
PUT
State Street Technology Select Sector SPDR ETF
XLK
$122B
| $114M | 0.04% |
808,200
+59,800
| +8% | +$7.92M |
|
252
PUT
ExxonMobil
XOM
$657B
| $113M | 0.04% |
1,004,800
-16,300
| -2% | -$1.81M |
|
|
NVO
253
CALL
Novo Nordisk
NVO
$209B
| $113M | 0.04% |
2,034,000
+922,900
| +83% | +$54M |
|
254
PUT
Avis
CAR
$4.9B
| $112M | 0.04% |
695,000
+247,500
| +55% | +$41.7M |
|
255
PUT
United Airlines
UAL
$40.2B
| $111M | 0.04% |
1,149,600
-64,600
| -5% | -$6.21M |
|
256
PUT
Humana
HUM
$46.3B
| $108M | 0.04% |
416,800
+57,500
| +16% | +$15.1M |
|
257
PUT
Vistra
VST
$48B
| $108M | 0.04% |
551,800
+6,100
| +1% | +$1.21M |
|
258
CALL
Intuitive Surgical
ISRG
$139B
| $108M | 0.04% |
241,400
+72,100
| +43% | +$34.6M |
|
|
259
CALL
State Street Technology Select Sector SPDR ETF
XLK
$122B
| $107M | 0.04% |
759,200
+29,000
| +4% | +$3.84M |
|
|
SCHW
260
PUT
Charles Schwab
SCHW
$187B
| $107M | 0.04% |
1,118,300
+161,400
| +17% | +$15.3M |
|
261
PUT
Hims & Hers Health
HIMS
$7.35B
| $106M | 0.04% |
1,873,300
+49,200
| +3% | +$2.52M |
|
262
CALL
Deere & Co
DE
$164B
| $106M | 0.04% |
231,300
-20,900
| -8% | -$10.3M |
|
263
CALL
Sea Limited
SE
$70.3B
| $106M | 0.04% |
590,500
+96,400
| +20% | +$16.5M |
|
264
PUT
Duolingo
DUOL
$6.42B
| $105M | 0.04% |
326,800
+231,500
| +243% | +$77.4M |
|
265
CALL
KLA
KLAC
$252B
| $105M | 0.04% |
972,000
+350,000
| +56% | +$32.7M |
|
266
PUT
Western Digital
WDC
$151B
| $104M | 0.04% |
864,100
+440,100
| +104% | +$36M |
|
267
CALL
Seagate
STX
$182B
| $104M | 0.04% |
438,700
+199,000
| +83% | +$34M |
|
268
CALL
Morgan Stanley
MS
$338B
| $103M | 0.04% |
648,400
-255,200
| -28% | -$37.7M |
|
269
PUT
Caesars Entertainment
CZR
$6.13B
| $103M | 0.04% |
3,811,300
+2,957,300
| +346% | +$80.1M |
|
270
PUT
Cisco
CSCO
$483B
| $101M | 0.04% |
1,471,200
+434,000
| +42% | +$29.6M |
|
|
271
PUT
State Street Financial Select Sector SPDR ETF
XLF
$59B
| $100M | 0.04% |
1,863,300
-727,400
| -28% | -$38.5M |
|
|
SCHW
272
CALL
Charles Schwab
SCHW
$187B
| $100M | 0.04% |
1,050,700
-187,500
| -15% | -$17.8M |
|
273
CALL
RTX Corp
RTX
$302B
| $99.4M | 0.04% |
594,300
-66,100
| -10% | -$10.3M |
|
274
PUT
Texas Instruments
TXN
$256B
| $99.3M | 0.04% |
540,200
+227,800
| +73% | +$44.5M |
|
275
CALL
United Rentals
URI
$70.8B
| $99M | 0.04% |
103,700
-11,300
| -10% | -$10.1M |
|
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.