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 | |
|---|---|---|---|---|---|---|
651
CALL
Teradyne
TER
$62.6B
| $27.7M | 0.01% |
201,300
+116,400
| +137% | +$12.7M |
|
652
CALL
VanEck Durable High Dividend ETF
DURA
$39.1M
| $27.7M | 0.01% |
115,400
+8,900
| +8% | +$299K |
|
|
TIGR
653
CALL
UP Fintech Holding
TIGR
$842M
| $27.6M | 0.01% |
2,586,500
-582,800
| -18% | -$6.25M |
|
654
CALL
GitLab
GTLB
$6.98B
| $27.5M | 0.01% |
610,000
+103,800
| +21% | +$4.75M |
|
655
CALL
Lumentum
LITE
$67.3B
| $27.5M | 0.01% |
169,000
+83,400
| +97% | +$10.4M |
|
656
CALL
Johnson Controls International
JCI
$94.6B
| $27.4M | 0.01% |
248,800
-17,500
| -7% | -$1.87M |
|
657
PUT
Monolithic Power Systems
MPWR
$70.8B
| $27.3M | 0.01% |
29,700
-100
| -0.3% | -$81.1K |
|
658
Mercado Libre
MELI
$95.1B
| $27.3M | 0.01% |
+11,694
| New | +$28.1M |
|
659
PUT
Zillow
Z
$7.43B
| $27.3M | 0.01% |
354,200
+148,900
| +73% | +$12.2M |
|
660
PUT
SoundHound AI
SOUN
$3.29B
| $27.2M | 0.01% |
1,688,700
+828,800
| +96% | +$11M |
|
661
Citigroup
C
$231B
| $27.1M | 0.01% |
+267,041
| New | +$25.3M |
|
662
PUT
Hilton Worldwide
HLT
$72.3B
| $27M | 0.01% |
104,200
-24,600
| -19% | -$6.65M |
|
|
663
GitLab
GTLB
$6.98B
| $26.9M | 0.01% |
597,220
+530,222
| +791% | +$24.3M |
|
664
PUT
monday.com
MNDY
$3.58B
| $26.9M | 0.01% |
138,700
+89,900
| +184% | +$20.7M |
|
665
Baidu
BIDU
$35.4B
| $26.8M | 0.01% |
203,577
+95,327
| +88% | +$9.44M |
|
666
CALL
Coherent
COHR
$67.5B
| $26.7M | 0.01% |
248,300
-56,800
| -19% | -$5.66M |
|
667
PUT
WIX.com
WIX
$2.76B
| $26.7M | 0.01% |
150,200
+54,700
| +57% | +$8.23M |
|
|
668
SoundHound AI
SOUN
$3.29B
| $26.6M | 0.01% |
1,655,741
+1,615,787
| +4,044% | +$21.4M |
|
669
PUT
Estee Lauder
EL
$31.6B
| $26.6M | 0.01% |
301,800
-90,000
| -23% | -$8.01M |
|
670
CALL
Comcast
CMCSA
$89.8B
| $26.4M | 0.01% |
840,200
+123,600
| +17% | +$4.14M |
|
671
CALL
Quanta Services
PWR
$104B
| $26.4M | 0.01% |
63,700
+1,500
| +2% | +$583K |
|
672
CALL
Five Below
FIVE
$13B
| $26.4M | 0.01% |
170,400
-16,600
| -9% | -$2.35M |
|
673
PUT
Bristol-Myers Squibb
BMY
$130B
| $26.3M | 0.01% |
583,800
+11,300
| +2% | +$528K |
|
674
CALL
Oneok
OKE
$57.5B
| $26.2M | 0.01% |
359,700
+89,800
| +33% | +$6.88M |
|
|
SCIU
675
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $26.2M | 0.01% |
521,400
+140,600
| +37% | +$7.06M |
|
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.