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 | |
|---|---|---|---|---|---|---|
3451
TransAlta
TAC
$3.95B
| $269K | ﹤0.01% |
+19,705
| New | +$242K |
|
|
CAN
3452
PUT
Canaan Creative
CAN
$150M
| $269K | ﹤0.01% |
+304,600
| New | +$231K |
|
3453
C3.ai
AI
$1.65B
| $268K | ﹤0.01% |
15,481
-31,389
| -67% | -$655K |
|
3454
PUT
Phreesia
PHR
$758M
| $268K | ﹤0.01% |
+11,400
| New | +$310K |
|
3455
PUT
Designer Brands
DBI
$321M
| $268K | ﹤0.01% |
+75,600
| New | +$261K |
|
|
CALY
3456
Callaway Golf Company
CALY
$3.01B
| $267K | ﹤0.01% |
28,129
-11,390
| -29% | -$106K |
|
3457
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$287M
| $266K | ﹤0.01% |
+5,101
| New | +$355K |
|
3458
CALL
MidCap Financial Investment
MFIC
$804M
| $266K | ﹤0.01% |
22,200
-7,100
| -24% | -$90.6K |
|
3459
PUT
Star Bulk Carriers
SBLK
$3.09B
| $266K | ﹤0.01% |
+14,300
| New | +$269K |
|
3460
ProShares Short Real Estate
REK
$12M
| $266K | ﹤0.01% |
+16,057
| New | +$270K |
|
3461
CALL
Veritone
VERI
$139M
| $265K | ﹤0.01% |
+54,900
| New | +$159K |
|
3462
Kopin
KOPN
$964M
| $264K | ﹤0.01% |
108,691
-36,894
| -25% | -$75.3K |
|
3463
CALL
TORM
TRMD
$2.93B
| $264K | ﹤0.01% |
12,800
-200
| -2% | -$4.03K |
|
3464
Krispy Kreme
DNUT
$536M
| $263K | ﹤0.01% |
67,844
-34,435
| -34% | -$119K |
|
3465
Rapid7
RPD
$894M
| $262K | ﹤0.01% |
+13,966
| New | +$295K |
|
3466
Ero Copper
ERO
$3.79B
| $261K | ﹤0.01% |
+12,920
| New | +$197K |
|
3467
CALL
Compass Minerals
CMP
$1.13B
| $261K | ﹤0.01% |
13,600
-6,900
| -34% | -$137K |
|
3468
Quantum-Si Incorporated
QSI
$179M
| $261K | ﹤0.01% |
+185,117
| New | +$268K |
|
3469
Butterfly Network
BFLY
$2.5B
| $260K | ﹤0.01% |
+134,915
| New | +$229K |
|
|
3470
Phreesia
PHR
$758M
| $260K | ﹤0.01% |
+11,054
| New | +$301K |
|
3471
CALL
Ichor Holdings
ICHR
$2.53B
| $259K | ﹤0.01% |
+14,800
| New | +$281K |
|
3472
Jack in the Box
JACK
$341M
| $258K | ﹤0.01% |
13,065
-7,257
| -36% | -$144K |
|
3473
PUT
Cemex
CX
$16.1B
| $256K | ﹤0.01% |
+28,500
| New | +$243K |
|
|
WBTN
3474
CALL
WEBTOON Entertainment Inc
WBTN
$1.19B
| $254K | ﹤0.01% |
+13,100
| New | +$175K |
|
3475
Amcor
AMCR
$21.9B
| $254K | ﹤0.01% |
+6,203
| New | +$278K |
|
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.