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 | |
|---|---|---|---|---|---|---|
2751
CALL
Allegiant Air
ALGT
$2.36B
| $954K | ﹤0.01% |
15,700
-3,800
| -19% | -$218K |
|
2752
PUT
Fortuna Silver Mines
FSM
$3.1B
| $952K | ﹤0.01% |
106,300
+43,600
| +70% | +$318K |
|
2753
PUT
Frontline
FRO
$9.02B
| $950K | ﹤0.01% |
41,700
-2,300
| -5% | -$46.6K |
|
2754
PUT
Procore
PCOR
$9.45B
| $948K | ﹤0.01% |
+13,000
| New | +$908K |
|
2755
CALL
Trimble
TRMB
$13.4B
| $947K | ﹤0.01% |
+11,600
| New | +$946K |
|
2756
ZIM Integrated Shipping Services
ZIM
$3.23B
| $944K | ﹤0.01% |
69,687
-29,241
| -30% | -$444K |
|
2757
CALL
Kodak
KODK
$978M
| $944K | ﹤0.01% |
147,200
-16,300
| -10% | -$103K |
|
2758
CALL
Ingersoll Rand
IR
$32.7B
| $942K | ﹤0.01% |
11,400
-7,500
| -40% | -$615K |
|
2759
CALL
Maximus
MMS
$2.94B
| $941K | ﹤0.01% |
+10,300
| New | +$835K |
|
2760
PUT
Huntsman Corp
HUN
$1.81B
| $941K | ﹤0.01% |
104,800
+39,800
| +61% | +$418K |
|
|
CALY
2761
PUT
Callaway Golf Company
CALY
$2.95B
| $941K | ﹤0.01% |
99,000
+7,000
| +8% | +$65.1K |
|
|
HIMX
2762
PUT
Himax Technologies
HIMX
$2.56B
| $940K | ﹤0.01% |
+106,500
| New | +$914K |
|
2763
PUT
Vermilion Energy
VET
$1.72B
| $937K | ﹤0.01% |
119,800
+17,100
| +17% | +$132K |
|
|
TPC
2764
Tutor Perini Cor
TPC
$4.98B
| $936K | ﹤0.01% |
+14,263
| New | +$795K |
|
2765
CALL
Virtu Financial
VIRT
$5.05B
| $934K | ﹤0.01% |
26,300
-4,200
| -14% | -$173K |
|
|
FLG
2766
Flagstar Bank National Association
FLG
$5.92B
| $933K | ﹤0.01% |
80,753
+52,827
| +189% | +$628K |
|
2767
BlackLine
BL
$1.82B
| $931K | ﹤0.01% |
17,540
+2,530
| +17% | +$137K |
|
2768
PUT
Tiptree Inc
TIPT
$677M
| $930K | ﹤0.01% |
+48,500
| New | +$1.08M |
|
2769
CALL
EPR Properties
EPR
$4.73B
| $928K | ﹤0.01% |
+16,000
| New | +$899K |
|
2770
PUT
Vanguard FTSE Europe ETF
VGK
$31.1B
| $926K | ﹤0.01% |
+11,600
| New | +$908K |
|
2771
CALL
indie Semiconductor
INDI
$875M
| $925K | ﹤0.01% |
227,200
-34,700
| -13% | -$143K |
|
2772
CALL
Mattel
MAT
$4.25B
| $921K | ﹤0.01% |
54,700
-58,500
| -52% | -$1.07M |
|
2773
CALL
Pegasystems
PEGA
$5.51B
| $920K | ﹤0.01% |
16,000
+1,500
| +10% | +$82.7K |
|
2774
PUT
Antero Midstream
AM
$10.5B
| $920K | ﹤0.01% |
47,300
+28,100
| +146% | +$508K |
|
|
DOG
2775
ProShares Short Dow30
DOG
$87.2M
| $919K | ﹤0.01% |
+37,755
| New | +$948K |
|
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.