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 | |
|---|---|---|---|---|---|---|
2926
PUT
Shoals Technologies Group
SHLS
$1.37B
| $737K | ﹤0.01% |
99,500
+9,900
| +11% | +$60.9K |
|
2927
PUT
Vicor
VICR
$10.4B
| $736K | ﹤0.01% |
+14,800
| New | +$721K |
|
|
IRBT
2928
PUT
DELISTED
iRobot
IRBT
| $735K | ﹤0.01% |
204,700
-13,500
| -6% | -$52.2K |
|
2929
PUT
Idaho Strategic Resources
IDR
$500M
| $733K | ﹤0.01% |
+21,700
| New | +$512K |
|
2930
CALL
SGHC Ltd
SGHC
$6.65B
| $729K | ﹤0.01% |
+55,200
| New | +$650K |
|
2931
PUT
Hess Midstream
HESM
$5.11B
| $726K | ﹤0.01% |
+21,000
| New | +$833K |
|
2932
PUT
Klaviyo
KVYO
$5.47B
| $725K | ﹤0.01% |
26,200
-11,300
| -30% | -$365K |
|
|
TBCH
2933
CALL
Turtle Beach Corp
TBCH
$230M
| $722K | ﹤0.01% |
45,400
-8,400
| -16% | -$125K |
|
2934
CALL
Rush Enterprises Class A
RUSHA
$9.62B
| $722K | ﹤0.01% |
+13,500
| New | +$751K |
|
2935
PUT
Smith & Wesson
SWBI
$643M
| $722K | ﹤0.01% |
73,400
-40,500
| -36% | -$346K |
|
2936
PUT
Elanco Animal Health
ELAN
$11.2B
| $721K | ﹤0.01% |
35,800
-16,800
| -32% | -$281K |
|
2937
CALL
Kodiak Gas Services
KGS
$6.3B
| $721K | ﹤0.01% |
+19,500
| New | +$658K |
|
|
PR
2938
PUT
Permian Resources
PR
$17.7B
| $719K | ﹤0.01% |
56,200
+25,800
| +85% | +$354K |
|
2939
PUT
Weibo
WB
$1.88B
| $719K | ﹤0.01% |
58,000
+28,400
| +96% | +$311K |
|
2940
CALL
Coursera
COUR
$1.53B
| $719K | ﹤0.01% |
61,400
+23,300
| +61% | +$253K |
|
|
NFLU
2941
T-Rex 2X Long NFLX Daily Target ETF
NFLU
$59.7M
| $718K | ﹤0.01% |
+12,646
| New | +$760K |
|
2942
Aspen Aerogels
ASPN
$504M
| $718K | ﹤0.01% |
103,197
+16,016
| +18% | +$113K |
|
2943
PUT
Plains GP Holdings
PAGP
$5.04B
| $717K | ﹤0.01% |
39,300
+3,500
| +10% | +$66.9K |
|
2944
PUT
Evolv Technologies
EVLV
$1.04B
| $716K | ﹤0.01% |
94,800
+11,000
| +13% | +$80.3K |
|
2945
PUT
Cedar Fair
FUN
$1.71B
| $716K | ﹤0.01% |
31,500
+20,300
| +181% | +$539K |
|
2946
CALL
Atkore
ATKR
$3.17B
| $715K | ﹤0.01% |
+11,400
| New | +$743K |
|
2947
CALL
The RealReal
REAL
$1.33B
| $714K | ﹤0.01% |
67,200
-36,400
| -35% | -$269K |
|
2948
Red Cat Holdings
RCAT
$1.56B
| $712K | ﹤0.01% |
68,820
-34,897
| -34% | -$326K |
|
2949
CALL
Newell Brands
NWL
$2.63B
| $712K | ﹤0.01% |
135,800
+22,200
| +20% | +$126K |
|
|
2950
PUT
Aspen Aerogels
ASPN
$504M
| $711K | ﹤0.01% |
102,200
+13,100
| +15% | +$92.4K |
|
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.