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 |
Sprott Physical Silver Trust
PSLV
|
+$344M |
| 2 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$297M |
| 3 |
Tesla
TSLA
|
+$235M |
| 4 |
Sprott Physical Gold and Silver Trust
CEF
|
+$177M |
| 5 |
Meta Platforms (Facebook)
META
|
+$120M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$426M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$390M |
| 3 |
NVIDIA
NVDA
|
+$72.8M |
| 4 |
Broadcom
AVGO
|
+$66.7M |
| 5 |
AST SpaceMobile
ASTS
|
+$62.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.58% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Financials | 0.16% |
| 4 | Communication Services | 0.13% |
| 5 | Industrials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3901
CALL
Inspire Medical Systems
INSP
$1.48B
| $573K | ﹤0.01% |
11,100
-6,700
| -38% | -$469K |
|
3902
WD-40
WDFC
$3.18B
| $572K | ﹤0.01% |
+2,804
| New | +$626K |
|
|
LRCU
3903
Tradr 2X Long LRCX Daily ETF
LRCU
$52.8M
| $571K | ﹤0.01% |
+18,390
| New | +$666K |
|
3904
CALL
Cohu
COHU
$2.64B
| $570K | ﹤0.01% |
+18,600
| New | +$546K |
|
3905
PUT
Upwork
UPWK
$1.11B
| $569K | ﹤0.01% |
51,900
-69,700
| -57% | -$1.1M |
|
3906
FMC
FMC
$1.47B
| $569K | ﹤0.01% |
33,021
-53,438
| -62% | -$799K |
|
3907
CALL
AppFolio
APPF
$5.69B
| $568K | ﹤0.01% |
+3,600
| New | +$682K |
|
|
MIAX
3908
Miami International Holdings
MIAX
$4.09B
| $567K | ﹤0.01% |
+14,577
| New | +$601K |
|
3909
PUT
Bruker
BRKR
$9.18B
| $567K | ﹤0.01% |
15,700
-300
| -2% | -$12.5K |
|
|
BBBY
3910
CALL
Bed Bath & Beyond
BBBY
$496M
| $567K | ﹤0.01% |
122,100
-228,800
| -65% | -$1.28M |
|
3911
CALL
iShares Convertible Bond ETF
ICVT
$7.45B
| $565K | ﹤0.01% |
+12,400
| New | +$1.28M |
|
3912
CALL
StepStone Group
STEP
$3.38B
| $563K | ﹤0.01% |
+11,800
| New | +$682K |
|
3913
PUT
Assured Guaranty
AGO
$3.73B
| $562K | ﹤0.01% |
+6,900
| New | +$589K |
|
3914
POET Technologies
POET
$1.38B
| $562K | ﹤0.01% |
94,647
-220,136
| -70% | -$1.43M |
|
3915
PUT
Ollie's Bargain Outlet
OLLI
$4.08B
| $561K | ﹤0.01% |
6,100
-8,100
| -57% | -$875K |
|
3916
PUT
Grand Canyon Education
LOPE
$3.62B
| $561K | ﹤0.01% |
+3,300
| New | +$554K |
|
|
PDS
3917
CALL
Precision Drilling
PDS
$1.11B
| $561K | ﹤0.01% |
+5,700
| New | +$488K |
|
3918
Qfin Holdings
QFIN
$1.59B
| $561K | ﹤0.01% |
43,432
+23,792
| +121% | +$366K |
|
3919
PUT
Nexstar Media Group
NXST
$5.57B
| $561K | ﹤0.01% |
+3,100
| New | +$695K |
|
3920
CALL
Artisan Partners
APAM
$2.78B
| $560K | ﹤0.01% |
+15,400
| New | +$630K |
|
3921
ARK Blockchain & Fintech Innovation ETF
ARKF
$748M
| $560K | ﹤0.01% |
+14,741
| New | +$620K |
|
3922
CALL
Saic
SAIC
$4.91B
| $560K | ﹤0.01% |
+5,900
| New | +$578K |
|
3923
Direxion Daily FTSE China Bull 3X ETF
YINN
$654M
| $560K | ﹤0.01% |
+17,065
| New | +$695K |
|
3924
ADMA Biologics
ADMA
$1.96B
| $559K | ﹤0.01% |
62,075
+40,964
| +194% | +$646K |
|
3925
Ametek
AME
$54.5B
| $559K | ﹤0.01% |
+2,606
| New | +$579K |
|
Similar funds
IMC Chicago's Q1 2026 Portfolio in Review
As of Q1 2026, IMC Chicago held 6,062 positions worth $278B, up 1.1% from $275B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $22.2B of net new capital in Q1 2026, opening 2,049 new positions and adding to 1,848 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
By sector, the portfolio is most concentrated in Technology at 0.58% of assets, up from 0.56% a quarter earlier, followed by Consumer Discretionary and Financials.
On the sell side, the largest reduction was Broadcom, an estimated $66.7M trimmed.
- IMC Chicago's largest Q1 2026 buy was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
- IMC Chicago added most to Sprott Physical Silver Trust in Q1 2026, an estimated $344M increase.
- IMC Chicago's biggest Q1 2026 reduction was Broadcom, cutting an estimated $66.7M.
- IMC Chicago fully exited Invesco QQQ Trust in Q1 2026, selling an estimated $426M.
- IMC Chicago's ten largest holdings make up 38% of its $278B portfolio in Q1 2026.
- IMC Chicago opened 2,049 new positions and closed 389 in Q1 2026.
- IMC Chicago's portfolio value rose 1.1% quarter-over-quarter to $278B.
Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.