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 | |
|---|---|---|---|---|---|---|
3426
CALL
MannKind Corp
MNKD
$1.23B
| $287K | ﹤0.01% |
+53,500
| New | +$235K |
|
|
MOMO
3427
CALL
Hello Group
MOMO
$861M
| $287K | ﹤0.01% |
38,700
-83,500
| -68% | -$682K |
|
3428
CALL
Natural Gas Services Group
NGS
$474M
| $285K | ﹤0.01% |
+10,200
| New | +$261K |
|
3429
CALL
Phreesia
PHR
$758M
| $285K | ﹤0.01% |
12,100
+700
| +6% | +$19K |
|
3430
CALL
Chegg
CHGG
$92.8M
| $284K | ﹤0.01% |
188,300
-110,900
| -37% | -$156K |
|
|
DRD
3431
CALL
DRDGold
DRD
$2.07B
| $284K | ﹤0.01% |
+10,300
| New | +$184K |
|
3432
CALL
Ibotta
IBTA
$741M
| $284K | ﹤0.01% |
+10,200
| New | +$320K |
|
3433
CALL
Revolve Group
RVLV
$1.69B
| $283K | ﹤0.01% |
13,300
-100
| -0.7% | -$2.18K |
|
3434
CALL
Clean Energy Fuels
CLNE
$377M
| $283K | ﹤0.01% |
+109,800
| New | +$257K |
|
3435
Palladyne AI
PDYN
$312M
| $283K | ﹤0.01% |
32,931
+4,263
| +15% | +$35.4K |
|
|
FIAT
3436
YieldMax Short COIN Option Income Strategy ETF
FIAT
$34.2M
| $283K | ﹤0.01% |
+10,356
| New | +$324K |
|
3437
PUT
Banco Santander
SAN
$210B
| $282K | ﹤0.01% |
26,900
-12,700
| -32% | -$118K |
|
3438
FLEX LNG
FLNG
$1.58B
| $281K | ﹤0.01% |
+11,139
| New | +$276K |
|
3439
Park Hotels & Resorts
PK
$2.89B
| $281K | ﹤0.01% |
+25,334
| New | +$285K |
|
3440
Trevi Therapeutics
TRVI
$2.54B
| $280K | ﹤0.01% |
+30,602
| New | +$229K |
|
|
EMX
3441
DELISTED
EMX Royalty
EMX
| $280K | ﹤0.01% |
+54,277
| New | +$188K |
|
3442
CALL
Invesco DB US Dollar Index Bearish Fund
UDN
$109M
| $279K | ﹤0.01% |
14,800
-33,500
| -69% | -$627K |
|
3443
CALL
Photronics
PLAB
$1.95B
| $278K | ﹤0.01% |
+12,100
| New | +$259K |
|
3444
CALL
Spire Global
SPIR
$574M
| $277K | ﹤0.01% |
+25,200
| New | +$260K |
|
3445
CALL
Constellium
CSTM
$4.05B
| $275K | ﹤0.01% |
18,500
-27,100
| -59% | -$388K |
|
3446
CALL
Sinclair Inc
SBGI
$989M
| $275K | ﹤0.01% |
18,200
+3,300
| +22% | +$47.4K |
|
3447
Porch Group
PRCH
$1.79B
| $273K | ﹤0.01% |
+16,289
| New | +$250K |
|
|
BABO
3448
CALL
YieldMax BABA Option Income Strategy ETF
BABO
$18.1M
| $273K | ﹤0.01% |
17,700
-76,600
| -81% | -$1.22M |
|
3449
PUT
Target Hospitality
TH
$1.66B
| $273K | ﹤0.01% |
32,200
-10,600
| -25% | -$87.4K |
|
3450
Children's Place
PLCE
$56.3M
| $271K | ﹤0.01% |
43,642
-12,052
| -22% | -$65.5K |
|
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.