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 | |
|---|---|---|---|---|---|---|
801
CALL
Digital Realty Trust
DLR
$73.1B
| $19.4M | 0.01% |
112,200
-15,700
| -12% | -$2.68M |
|
802
PUT
ProShares Ultra Bloomberg Natural Gas
BOIL
$402M
| $19.4M | 0.01% |
614,650
-305,500
| -33% | -$20.8M |
|
803
CALL
NRG Energy
NRG
$25.2B
| $19.4M | 0.01% |
119,700
+8,200
| +7% | +$1.28M |
|
804
CALL
Cintas
CTAS
$80.3B
| $19.4M | 0.01% |
94,400
+25,800
| +38% | +$5.51M |
|
805
PUT
Tenet Healthcare
THC
$21.5B
| $19.3M | 0.01% |
95,300
+24,900
| +35% | +$4.42M |
|
806
Deere & Co
DE
$165B
| $19.3M | 0.01% |
+42,260
| New | +$20.8M |
|
807
PUT
Kratos Defense & Security Solutions
KTOS
$11.8B
| $19.3M | 0.01% |
210,700
+85,300
| +68% | +$5.46M |
|
808
PUT
Simon Property Group
SPG
$71.7B
| $19.2M | 0.01% |
102,400
+12,600
| +14% | +$2.18M |
|
809
CALL
Pan American Silver
PAAS
$19.9B
| $19.1M | 0.01% |
494,100
+219,800
| +80% | +$7.07M |
|
810
PUT
Lumentum
LITE
$78B
| $19.1M | 0.01% |
117,600
+63,000
| +115% | +$7.86M |
|
811
CALL
American Tower
AMT
$81.2B
| $19M | 0.01% |
99,000
+11,100
| +13% | +$2.31M |
|
812
CALL
Toast
TOST
$20.4B
| $18.9M | 0.01% |
518,500
+26,700
| +5% | +$1.16M |
|
813
PUT
Stryker
SYK
$131B
| $18.9M | 0.01% |
51,200
-8,500
| -14% | -$3.28M |
|
|
CFLT
814
CALL
DELISTED
Confluent
CFLT
| $18.8M | 0.01% |
947,600
+548,900
| +138% | +$11.5M |
|
815
PUT
Oneok
OKE
$58.4B
| $18.8M | 0.01% |
257,000
+96,600
| +60% | +$7.4M |
|
|
816
CALL
Stryker
SYK
$131B
| $18.7M | 0.01% |
50,600
-16,100
| -24% | -$6.22M |
|
817
PUT
Amphenol
APH
$204B
| $18.7M | 0.01% |
151,100
+50,800
| +51% | +$5.57M |
|
818
Grayscale Bitcoin Trust
GBTC
$9.51B
| $18.7M | 0.01% |
208,201
-154,600
| -43% | -$13.9M |
|
819
CALL
CarMax
KMX
$8.52B
| $18.7M | 0.01% |
416,400
+243,600
| +141% | +$14.5M |
|
820
PUT
Paychex
PAYX
$44.6B
| $18.6M | 0.01% |
147,100
+48,300
| +49% | +$6.7M |
|
821
PUT
Oscar Health
OSCR
$9.5B
| $18.6M | 0.01% |
982,000
+606,500
| +162% | +$10M |
|
822
PUT
Vanguard Information Technology ETF
VGT
$151B
| $18.5M | 0.01% |
198,400
| – | – |
|
823
Becton Dickinson
BDX
$49.6B
| $18.5M | 0.01% |
98,890
+62,512
| +172% | +$11.6M |
|
824
PUT
Parker-Hannifin
PH
$134B
| $18.5M | 0.01% |
24,400
+9,900
| +68% | +$7.3M |
|
825
CALL
Lemonade
LMND
$4.1B
| $18.5M | 0.01% |
345,300
+22,100
| +7% | +$1.08M |
|
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.