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 | |
|---|---|---|---|---|---|---|
876
CALL
QuantumScape Corp
QS
$3.79B
| $16.4M | 0.01% |
1,332,800
+174,000
| +15% | +$1.7M |
|
877
CALL
Aon
AON
$75.7B
| $16.4M | 0.01% |
45,900
+24,500
| +114% | +$8.86M |
|
878
CALL
GE HealthCare
GEHC
$33.3B
| $16.3M | 0.01% |
217,700
-26,200
| -11% | -$1.95M |
|
879
PUT
iShares Gold Trust
IAU
$64.5B
| $16.3M | 0.01% |
223,700
+7,200
| +3% | +$470K |
|
880
CALL
Peloton Interactive
PTON
$2.44B
| $16.2M | 0.01% |
1,803,700
-37,900
| -2% | -$282K |
|
881
PUT
Ralph Lauren
RL
$23.1B
| $16.1M | 0.01% |
51,400
+15,700
| +44% | +$4.68M |
|
882
CALL
Cummins
CMI
$87B
| $16M | 0.01% |
37,900
+16,300
| +75% | +$6.25M |
|
883
CALL
HP
HPQ
$28.6B
| $16M | 0.01% |
587,800
+104,600
| +22% | +$2.79M |
|
884
CALL
Sable Offshore Corp
SOC
$773M
| $16M | 0.01% |
915,700
+658,900
| +257% | +$16.9M |
|
885
GameStop
GME
$8.33B
| $16M | 0.01% |
585,856
+273,545
| +88% | +$6.49M |
|
886
Snap
SNAP
$8.96B
| $16M | 0.01% |
2,071,400
+1,803,856
| +674% | +$15M |
|
887
PUT
Symbotic
SYM
$5.43B
| $15.9M | 0.01% |
295,800
+94,600
| +47% | +$4.78M |
|
888
CALL
Colgate-Palmolive
CL
$74.1B
| $15.9M | 0.01% |
199,300
-5,300
| -3% | -$452K |
|
889
CALL
Illumina
ILMN
$29.1B
| $15.9M | 0.01% |
167,500
-213,800
| -56% | -$21.2M |
|
890
Alphabet (Google) Class C
GOOG
$4.21T
| $15.9M | 0.01% |
65,246
-264,819
| -80% | -$55.7M |
|
891
CALL
Nutanix
NTNX
$18.4B
| $15.9M | 0.01% |
213,200
-16,600
| -7% | -$1.22M |
|
892
PUT
Cipher Digital
CIFR
$6.9B
| $15.8M | 0.01% |
1,254,900
+900,500
| +254% | +$6.79M |
|
893
PUT
CarMax
KMX
$8.52B
| $15.8M | 0.01% |
352,000
+240,100
| +215% | +$14.3M |
|
894
CALL
Simon Property Group
SPG
$71.7B
| $15.7M | 0.01% |
83,800
-22,600
| -21% | -$3.9M |
|
|
NVO
895
Novo Nordisk
NVO
$205B
| $15.7M | 0.01% |
283,170
+4,627
| +2% | +$271K |
|
896
PUT
Welltower
WELL
$169B
| $15.7M | 0.01% |
88,200
+30,100
| +52% | +$4.95M |
|
897
PUT
Applied Digital
APLD
$8.81B
| $15.7M | 0.01% |
683,200
-592,900
| -46% | -$8.78M |
|
898
CALL
Truist Financial
TFC
$64.7B
| $15.6M | 0.01% |
342,100
-25,100
| -7% | -$1.13M |
|
899
PUT
Pan American Silver
PAAS
$19.9B
| $15.6M | 0.01% |
403,700
+125,100
| +45% | +$4.02M |
|
900
CALL
Biogen
BIIB
$31.1B
| $15.5M | 0.01% |
111,000
+9,000
| +9% | +$1.22M |
|
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.