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 | Miscellaneous | 98.33% |
| 2 | Technology | 0.58% |
| 3 | Consumer Discretionary | 0.39% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
6051
PUT
Slide Insurance Holdings
SLDE
$2.94B
| – | – |
-12,800
| Closed | -$249K | – |
|
|
CCCX
6052
CALL
DELISTED
Churchill Capital Corp X
CCCX
| – | – |
-225,100
| Closed | -$3.51M | – |
|
|
CCCX
6053
DELISTED
Churchill Capital Corp X
CCCX
| – | – |
-79,112
| Closed | -$1.23M | – |
|
|
CCCX
6054
PUT
DELISTED
Churchill Capital Corp X
CCCX
| – | – |
-237,300
| Closed | -$3.7M | – |
|
6055
ProShares Ultra CRCL
CRCA
$105M
| – | – |
-5,404
| Closed | -$224K | – |
|
6056
Firefly Aerospace
FLY
$3.35B
| – | – |
-107,152
| Closed | -$2.61M | – |
|
6057
CALL
Kyivstar Group
KYIV
$2.79B
| – | – |
-19,800
| Closed | -$257K | – |
|
6058
Figure Technology Solutions
FIGR
$6.4B
| – | – |
-29,419
| Closed | -$1.27M | – |
|
6059
StubHub Holdings
STUB
$2.34B
| – | – |
-91,748
| Closed | -$955K | – |
|
6060
Navan Inc
NAVN
$6.16B
| – | – |
-22,946
| Closed | -$272K | – |
|
6061
Defiance Daily Target 2X Short BMNR ETF
BMNZ
$5.38M
| – | – |
-74,509
| Closed | -$1.78M | – |
|
6062
Medline Inc
MDLN
$31.8B
| – | – |
-15,491
| Closed | -$684K | – |
|
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's Q1 2026 filing shows 2,049 new, 1,848 increased, 1,770 reduced and 389 closed positions. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M. The largest sale was Invesco QQQ Trust, an estimated $426M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.