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 | |
|---|---|---|---|---|---|---|
2451
PUT
Ventas
VTR
$46.3B
| $1.48M | ﹤0.01% |
21,100
+5,200
| +33% | +$349K |
|
2452
Cirrus Logic
CRUS
$6.08B
| $1.48M | ﹤0.01% |
+11,779
| New | +$1.31M |
|
2453
TJX Companies
TJX
$170B
| $1.47M | ﹤0.01% |
+10,156
| New | +$1.35M |
|
2454
CALL
NOV
NOV
$7.36B
| $1.47M | ﹤0.01% |
110,700
+58,800
| +113% | +$760K |
|
2455
CALL
Smith & Wesson
SWBI
$643M
| $1.47M | ﹤0.01% |
149,200
+68,700
| +85% | +$586K |
|
2456
CALL
H&R Block
HRB
$6.76B
| $1.47M | ﹤0.01% |
29,000
-7,100
| -20% | -$375K |
|
2457
CALL
Globus Medical
GMED
$11.5B
| $1.47M | ﹤0.01% |
+25,600
| New | +$1.47M |
|
2458
CALL
Solventum
SOLV
$14.7B
| $1.46M | ﹤0.01% |
20,000
+4,800
| +32% | +$352K |
|
2459
CALL
BridgeBio Pharma
BBIO
$15.9B
| $1.46M | ﹤0.01% |
28,100
+7,700
| +38% | +$376K |
|
2460
PG&E
PCG
$38.5B
| $1.46M | ﹤0.01% |
96,741
-12,661
| -12% | -$185K |
|
2461
Vanguard Real Estate ETF
VNQ
$39.1B
| $1.46M | ﹤0.01% |
+15,942
| New | +$1.45M |
|
2462
PUT
Vale
VALE
$58.7B
| $1.45M | ﹤0.01% |
133,900
-177,400
| -57% | -$1.81M |
|
2463
Planet Labs
PL
$8.82B
| $1.45M | ﹤0.01% |
+111,661
| New | +$861K |
|
2464
PUT
Sarepta Therapeutics
SRPT
$1.95B
| $1.45M | ﹤0.01% |
75,000
+43,300
| +137% | +$772K |
|
2465
PUT
Equity Residential
EQR
$24.7B
| $1.44M | ﹤0.01% |
+22,300
| New | +$1.46M |
|
2466
PUT
Winnebago Industries
WGO
$921M
| $1.44M | ﹤0.01% |
43,100
-4,600
| -10% | -$152K |
|
2467
PUT
Academy Sports + Outdoors
ASO
$3.03B
| $1.44M | ﹤0.01% |
28,800
-1,100
| -4% | -$56.1K |
|
2468
ProShares Ultra Russell2000
UWM
$248M
| $1.44M | ﹤0.01% |
30,976
-3,614
| -10% | -$152K |
|
|
RNAM
2469
CALL
DELISTED
Avidity Biosciences
RNAM
| $1.43M | ﹤0.01% |
+32,900
| New | +$1.33M |
|
2470
CALL
Infosys
INFY
$50.3B
| $1.43M | ﹤0.01% |
87,700
+69,100
| +372% | +$1.19M |
|
|
APLS
2471
CALL
DELISTED
Apellis Pharmaceuticals
APLS
| $1.43M | ﹤0.01% |
63,000
+22,200
| +54% | +$518K |
|
|
DQ
2472
Daqo New Energy
DQ
$1.01B
| $1.43M | ﹤0.01% |
50,682
-42,801
| -46% | -$1M |
|
|
SEI
2473
CALL
Solaris Energy Infrastructure
SEI
$3.94B
| $1.42M | ﹤0.01% |
+35,600
| New | +$1.11M |
|
|
SGI
2474
Somnigroup International
SGI
$14B
| $1.42M | ﹤0.01% |
16,838
+2,876
| +21% | +$227K |
|
|
HBI
2475
PUT
DELISTED
Hanesbrands
HBI
| $1.42M | ﹤0.01% |
215,100
+107,100
| +99% | +$592K |
|
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.