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 | |
|---|---|---|---|---|---|---|
|
DAWN
4051
PUT
DELISTED
Day One Biopharmaceuticals
DAWN
| $497K | ﹤0.01% |
+23,200
| New | +$327K |
|
4052
Alignment Healthcare
ALHC
$4.13B
| $496K | ﹤0.01% |
+28,175
| New | +$566K |
|
4053
Freshworks
FRSH
$2.7B
| $496K | ﹤0.01% |
+61,803
| New | +$570K |
|
4054
Intrepid Potash
IPI
$463M
| $495K | ﹤0.01% |
+11,585
| New | +$416K |
|
4055
PUT
Willis Towers Watson
WTW
$27.2B
| $494K | ﹤0.01% |
+1,700
| New | +$522K |
|
4056
CALL
KULR Technology Group
KULR
$128M
| $493K | ﹤0.01% |
208,000
-152,400
| -42% | -$473K |
|
|
MRP
4057
PUT
Millrose Properties Inc
MRP
$4.7B
| $493K | ﹤0.01% |
17,600
+1,800
| +11% | +$54.2K |
|
4058
CALL
Apple Hospitality REIT
APLE
$3.92B
| $493K | ﹤0.01% |
42,800
+21,900
| +105% | +$265K |
|
4059
PUT
Donaldson
DCI
$10.6B
| $492K | ﹤0.01% |
+5,800
| New | +$560K |
|
|
NUVL
4060
PUT
DELISTED
Nuvalent
NUVL
| $492K | ﹤0.01% |
+4,800
| New | +$489K |
|
4061
Rexford Industrial Realty
REXR
$8.12B
| $491K | ﹤0.01% |
15,009
+2,277
| +18% | +$85.5K |
|
4062
Fomento Económico Mexicano
FMX
$43.3B
| $489K | ﹤0.01% |
+4,406
| New | +$474K |
|
4063
PUT
Banco Bradesco
BBD
$38.7B
| $489K | ﹤0.01% |
134,000
+28,600
| +27% | +$108K |
|
|
VSXY
4064
Victoria's Secret
VSXY
$6.58B
| $489K | ﹤0.01% |
10,547
-63,092
| -86% | -$3.52M |
|
4065
CALL
Gladstone Investment Corp
GAIN
$638M
| $488K | ﹤0.01% |
+34,400
| New | +$479K |
|
4066
PUT
Cincinnati Financial
CINF
$27.7B
| $488K | ﹤0.01% |
+3,100
| New | +$504K |
|
4067
PUT
Richtech Robotics
RR
$360M
| $487K | ﹤0.01% |
233,200
-202,300
| -46% | -$622K |
|
4068
PUT
Constellium
CSTM
$4.08B
| $487K | ﹤0.01% |
19,800
+5,400
| +38% | +$128K |
|
|
APPX
4069
PUT
Tradr 2X Long APP Daily ETF
APPX
$59.2M
| $486K | ﹤0.01% |
44,500
+21,000
| +89% | +$1.04M |
|
4070
CALL
Aspen Aerogels
ASPN
$428M
| $486K | ﹤0.01% |
142,200
-127,900
| -47% | -$431K |
|
|
TPC
4071
PUT
Tutor Perini Cor
TPC
$4.61B
| $486K | ﹤0.01% |
6,300
-4,800
| -43% | -$367K |
|
4072
PUT
Dentsply Sirona
XRAY
$2.55B
| $486K | ﹤0.01% |
41,900
-30,000
| -42% | -$374K |
|
4073
PUT
Option Care Health
OPCH
$3.31B
| $485K | ﹤0.01% |
18,000
-9,400
| -34% | -$305K |
|
|
CMBT
4074
PUT
CMB.TECH NV
CMBT
$4.53B
| $484K | ﹤0.01% |
38,300
+6,900
| +22% | +$86.5K |
|
|
CRCD
4075
T-REX 2X Inverse CRCL Daily Target ETF
CRCD
$7.48M
| $483K | ﹤0.01% |
+71,573
| New | +$1.96M |
|
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.