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 | |
|---|---|---|---|---|---|---|
4701
CALL
Autoliv
ALV
$8.6B
| $273K | ﹤0.01% |
+2,600
| New | +$307K |
|
4702
PUT
Global Net Lease
GNL
$1.87B
| $273K | ﹤0.01% |
+29,200
| New | +$275K |
|
4703
Marriott Vacations Worldwide
VAC
$3.24B
| $273K | ﹤0.01% |
+4,188
| New | +$259K |
|
4704
Equifax
EFX
$20.3B
| $273K | ﹤0.01% |
+1,514
| New | +$301K |
|
4705
iShares MSCI Chile ETF
ECH
$1.01B
| $272K | ﹤0.01% |
+6,846
| New | +$292K |
|
4706
PUT
Sixth Street Specialty
TSLX
$1.59B
| $272K | ﹤0.01% |
+14,800
| New | +$292K |
|
4707
PUT
Bausch Health
BHC
$1.65B
| $272K | ﹤0.01% |
50,300
-21,900
| -30% | -$131K |
|
|
NKLR
4708
PUT
Terra Innovatum Global N.V.
NKLR
$558M
| $271K | ﹤0.01% |
+58,500
| New | +$286K |
|
|
SPYU
4709
MAX S&P 500 4x Leveraged ETN
SPYU
$250M
| $271K | ﹤0.01% |
+13,010
| New | +$339K |
|
4710
ETRACS 2x Leveraged US Dividend Factor TR ETN
SCDL
$17.3M
| $271K | ﹤0.01% |
+5,499
| New | +$262K |
|
4711
CALL
Dine Brands
DIN
$432M
| $270K | ﹤0.01% |
+10,300
| New | +$334K |
|
4712
iShares US Medical Devices ETF
IHI
$3.02B
| $270K | ﹤0.01% |
5,066
-8,627
| -63% | -$507K |
|
4713
GeoPark
GPRK
$649M
| $270K | ﹤0.01% |
+28,411
| New | +$239K |
|
4714
Bio-Techne
TECH
$11.2B
| $270K | ﹤0.01% |
5,160
-10,252
| -67% | -$615K |
|
4715
PUT
ABM Industries
ABM
$2.8B
| $270K | ﹤0.01% |
+7,000
| New | +$303K |
|
4716
CALL
PRA Group
PRAA
$648M
| $270K | ﹤0.01% |
+15,400
| New | +$234K |
|
4717
Twist Bioscience
TWST
$5.62B
| $269K | ﹤0.01% |
+5,661
| New | +$254K |
|
4718
CALL
NETGEAR
NTGR
$669M
| $269K | ﹤0.01% |
+12,300
| New | +$265K |
|
4719
PUT
OGE Energy
OGE
$10.3B
| $269K | ﹤0.01% |
+5,600
| New | +$256K |
|
4720
PUT
AppFolio
APPF
$5.85B
| $268K | ﹤0.01% |
+1,700
| New | +$322K |
|
4721
CALL
Prospect Capital
PSEC
$1.06B
| $268K | ﹤0.01% |
+102,600
| New | +$281K |
|
4722
CoStar Group
CSGP
$11.3B
| $268K | ﹤0.01% |
+6,637
| New | +$346K |
|
4723
Critical Metals Corp
CRML
$853M
| $268K | ﹤0.01% |
33,703
-112,065
| -77% | -$1.29M |
|
4724
Invesco S&P 500 Equal Weight Materials ETF
RSPM
$185M
| $267K | ﹤0.01% |
+6,915
| New | +$264K |
|
4725
Lennar Class A
LEN
$20.4B
| $267K | ﹤0.01% |
+3,078
| New | +$333K |
|
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.