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 | |
|---|---|---|---|---|---|---|
2876
PUT
Nektar Therapeutics
NKTR
$2.32B
| $1.47M | ﹤0.01% |
20,500
+8,600
| +72% | +$490K |
|
2877
PUT
Portillo's
PTLO
$324M
| $1.47M | ﹤0.01% |
278,800
-42,600
| -13% | -$232K |
|
2878
Direxion Daily Homebuilders & Supplies Bull 3X ETF
NAIL
$544M
| $1.47M | ﹤0.01% |
38,815
+13,800
| +55% | +$799K |
|
2879
PUT
Lionsgate Studios
LION
$3.93B
| $1.47M | ﹤0.01% |
153,600
-52,100
| -25% | -$481K |
|
2880
ProShares Ultra Consumer Discretionary
UCC
$10.3M
| $1.47M | ﹤0.01% |
+34,672
| New | +$1.72M |
|
2881
CALL
ARK 21Shares Bitcoin ETF
ARKB
$2.53B
| $1.47M | ﹤0.01% |
65,400
-23,400
| -26% | -$593K |
|
2882
RTX Corp
RTX
$261B
| $1.47M | ﹤0.01% |
+7,620
| New | +$1.52M |
|
2883
PUT
NextNav
NN
$1.82B
| $1.47M | ﹤0.01% |
91,700
-75,400
| -45% | -$1.22M |
|
2884
PUT
Vanguard S&P 500 Growth ETF
VOOG
$26.1B
| $1.47M | ﹤0.01% |
+21,600
| New | +$1.56M |
|
2885
Western Union
WU
$2.65B
| $1.46M | ﹤0.01% |
167,745
+19,961
| +14% | +$189K |
|
2886
CALL
Meritage Homes
MTH
$4.78B
| $1.46M | ﹤0.01% |
+23,600
| New | +$1.67M |
|
|
EMBJ
2887
Embraer S.A. ADS
EMBJ
$11.7B
| $1.46M | ﹤0.01% |
+24,592
| New | +$1.68M |
|
2888
CALL
Concentrix
CNXC
$1.45B
| $1.46M | ﹤0.01% |
53,300
+30,800
| +137% | +$1.09M |
|
2889
PUT
Universal Display
OLED
$3.84B
| $1.46M | ﹤0.01% |
15,900
+5,400
| +51% | +$597K |
|
|
LAC
2890
PUT
Lithium Americas
LAC
$1.07B
| $1.46M | ﹤0.01% |
368,400
+16,000
| +5% | +$78.6K |
|
|
LTM
2891
LATAM Airlines Group S.A.
LTM
$14.8B
| $1.45M | ﹤0.01% |
+29,427
| New | +$1.66M |
|
|
VNET
2892
VNET Group
VNET
$2.19B
| $1.45M | ﹤0.01% |
173,349
+100,038
| +136% | +$1.06M |
|
2893
CALL
Globant
GLOB
$1.39B
| $1.45M | ﹤0.01% |
31,500
-36,300
| -54% | -$2.01M |
|
2894
PUT
Vanguard Consumer Discretionary ETF
VCR
$6.11B
| $1.45M | ﹤0.01% |
+8,000
| New | +$3.09M |
|
2895
CALL
Xylem
XYL
$27.8B
| $1.45M | ﹤0.01% |
12,100
-10,100
| -45% | -$1.32M |
|
2896
IPG Photonics
IPGP
$4.36B
| $1.44M | ﹤0.01% |
+12,609
| New | +$1.37M |
|
2897
PUT
AllianceBernstein
AB
$3.51B
| $1.44M | ﹤0.01% |
38,500
+21,900
| +132% | +$860K |
|
2898
PUT
CDW
CDW
$16.6B
| $1.44M | ﹤0.01% |
+11,900
| New | +$1.5M |
|
2899
CALL
Willdan Group
WLDN
$1.1B
| $1.44M | ﹤0.01% |
18,800
+2,900
| +18% | +$307K |
|
2900
CALL
Travere Therapeutics
TVTX
$5.26B
| $1.44M | ﹤0.01% |
48,400
-62,500
| -56% | -$1.87M |
|
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.