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 | |
|---|---|---|---|---|---|---|
3951
Amcor
AMCR
$19.7B
| $546K | ﹤0.01% |
13,725
+8,537
| +165% | +$378K |
|
3952
PUT
ClearPoint Neuro
CLPT
$431M
| $545K | ﹤0.01% |
59,900
+27,100
| +83% | +$342K |
|
3953
CALL
Clean Harbors
CLH
$16.2B
| $545K | ﹤0.01% |
+1,900
| New | +$519K |
|
3954
CALL
Grand Canyon Education
LOPE
$3.68B
| $544K | ﹤0.01% |
+3,200
| New | +$537K |
|
3955
PUT
Compass Diversified
CODI
$750M
| $544K | ﹤0.01% |
69,200
+19,300
| +39% | +$123K |
|
3956
PUT
Ocular Therapeutix
OCUL
$1.89B
| $544K | ﹤0.01% |
64,200
+33,700
| +110% | +$321K |
|
|
DOG
3957
ProShares Short Dow30
DOG
$97.3M
| $544K | ﹤0.01% |
+22,259
| New | +$521K |
|
3958
CALL
Revvity
RVTY
$12.4B
| $543K | ﹤0.01% |
6,200
-11,500
| -65% | -$1.14M |
|
3959
PUT
Idaho Strategic Resources
IDR
$453M
| $543K | ﹤0.01% |
16,900
-900
| -5% | -$34.9K |
|
3960
CALL
Dana Inc
DAN
$2.96B
| $542K | ﹤0.01% |
+16,100
| New | +$503K |
|
3961
CALL
Webster Financial
WBS
$12.2B
| $541K | ﹤0.01% |
7,800
-3,000
| -28% | -$205K |
|
3962
CALL
Mitek Systems
MITK
$723M
| $540K | ﹤0.01% |
+40,000
| New | +$495K |
|
3963
CALL
UL Solutions
ULS
$17.3B
| $540K | ﹤0.01% |
6,300
-7,100
| -53% | -$560K |
|
3964
Direxion Daily GOOGL Bear 1X ETF
GGLS
$14.5M
| $539K | ﹤0.01% |
7,394
-7,082
| -49% | -$479K |
|
3965
PUT
Red Rock Resorts
RRR
$3.65B
| $539K | ﹤0.01% |
10,100
-4,400
| -30% | -$268K |
|
3966
PUT
Ameren
AEE
$31.2B
| $539K | ﹤0.01% |
+4,900
| New | +$524K |
|
3967
CALL
First Trust Capital Strength ETF
FTCS
$7.76B
| $538K | ﹤0.01% |
+2,300
| New | +$221K |
|
3968
Motorola Solutions
MSI
$67.4B
| $538K | ﹤0.01% |
1,240
-18,749
| -94% | -$8.12M |
|
3969
10x Genomics
TXG
$5.98B
| $536K | ﹤0.01% |
25,257
+9,123
| +57% | +$182K |
|
3970
PUT
Allegro MicroSystems
ALGM
$9.45B
| $536K | ﹤0.01% |
17,000
-220,300
| -93% | -$7.59M |
|
3971
CALL
Moelis & Co
MC
$4.85B
| $536K | ﹤0.01% |
+9,400
| New | +$611K |
|
3972
PUT
Atmos Energy
ATO
$29.7B
| $536K | ﹤0.01% |
+2,900
| New | +$512K |
|
|
RNMN
3973
CALL
RiverNorth Market Neutral ETF
RNMN
$7.16M
| $536K | ﹤0.01% |
139,500
+69,400
| +99% | +$1.78M |
|
|
IMSR
3974
PUT
Terrestrial Energy
IMSR
$561M
| $536K | ﹤0.01% |
89,200
+40,100
| +82% | +$318K |
|
3975
Magnolia Oil & Gas
MGY
$4.8B
| $535K | ﹤0.01% |
+16,958
| New | +$454K |
|
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.