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 | |
|---|---|---|---|---|---|---|
2076
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $3.56M | ﹤0.01% |
+13,951
| New | +$3.8M |
|
2077
PUT
2x Bitcoin ETF
BITX
$987M
| $3.56M | ﹤0.01% |
241,600
-143,900
| -37% | -$2.93M |
|
2078
PUT
Aon
AON
$76.8B
| $3.55M | ﹤0.01% |
+11,000
| New | +$3.66M |
|
2079
CALL
Vanguard S&P 500 Growth ETF
VOOG
$26.1B
| $3.55M | ﹤0.01% |
52,200
-45,600
| -47% | -$3.3M |
|
2080
PUT
Under Armour
UAA
$3.14B
| $3.55M | ﹤0.01% |
600,000
-190,200
| -24% | -$1.23M |
|
2081
CALL
Cemex
CX
$18.3B
| $3.55M | ﹤0.01% |
309,900
+121,500
| +64% | +$1.45M |
|
2082
CALL
Ares Capital
ARCC
$13.6B
| $3.54M | ﹤0.01% |
196,700
+42,500
| +28% | +$823K |
|
2083
CALL
Weatherford International
WFRD
$5.98B
| $3.53M | ﹤0.01% |
37,300
+17,400
| +87% | +$1.64M |
|
2084
CALL
Dynatrace
DT
$12.4B
| $3.52M | ﹤0.01% |
95,200
+4,800
| +5% | +$183K |
|
2085
CALL
W.R. Berkley
WRB
$26.9B
| $3.52M | ﹤0.01% |
+53,100
| New | +$3.66M |
|
2086
CALL
Polaris
PII
$4.18B
| $3.52M | ﹤0.01% |
64,500
-34,900
| -35% | -$2.19M |
|
2087
CALL
Mobileye
MBLY
$7.57B
| $3.51M | ﹤0.01% |
511,400
-109,500
| -18% | -$992K |
|
2088
PUT
ACM Research
ACMR
$6.58B
| $3.51M | ﹤0.01% |
89,200
-89,300
| -50% | -$4.74M |
|
2089
CALL
Return Stacked Bonds & Managed Futures ETF
RSBT
$136M
| $3.5M | ﹤0.01% |
89,100
+57,900
| +186% | +$1.1M |
|
2090
CALL
Watsco Inc
WSO
$15.4B
| $3.49M | ﹤0.01% |
+9,600
| New | +$3.72M |
|
2091
PUT
Fluence Energy
FLNC
$2.03B
| $3.49M | ﹤0.01% |
253,400
-144,100
| -36% | -$2.89M |
|
2092
PUT
-1x Short VIX Futures ETF
SVIX
$190M
| $3.48M | ﹤0.01% |
221,700
+49,400
| +29% | +$1.03M |
|
2093
PUT
Republic Services
RSG
$66B
| $3.48M | ﹤0.01% |
+15,900
| New | +$3.49M |
|
2094
PUT
Lincoln National
LNC
$8B
| $3.48M | ﹤0.01% |
98,000
+7,300
| +8% | +$281K |
|
|
AMRZ
2095
CALL
Amrize Ltd
AMRZ
$27B
| $3.48M | ﹤0.01% |
+62,100
| New | +$3.56M |
|
2096
CALL
A.O. Smith
AOS
$8.1B
| $3.48M | ﹤0.01% |
52,700
+35,600
| +208% | +$2.57M |
|
2097
Baidu
BIDU
$36.8B
| $3.47M | ﹤0.01% |
31,125
-419,160
| -93% | -$56.8M |
|
2098
PUT
Globe Life
GL
$14.3B
| $3.47M | ﹤0.01% |
+24,900
| New | +$3.52M |
|
2099
CALL
GDS Holdings
GDS
$6.57B
| $3.46M | ﹤0.01% |
86,000
-16,100
| -16% | -$690K |
|
2100
CALL
Kohl's
KSS
$2.06B
| $3.46M | ﹤0.01% |
268,200
-162,200
| -38% | -$2.73M |
|
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.