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 | |
|---|---|---|---|---|---|---|
5551
PUT
Rekor Systems
REKR
$83.1M
| $41.2K | ﹤0.01% |
+50,200
| New | +$53.8K |
|
5552
PUT
Cardlytics
CDLX
$23.2M
| $41.1K | ﹤0.01% |
+3,910
| New | +$38.1K |
|
|
FLNA
5553
PUT
Filana Therapeutics
FLNA
$45.5M
| $40.7K | ﹤0.01% |
+24,100
| New | +$49.6K |
|
|
BTM
5554
CALL
DELISTED
Bitcoin Depot
BTM
| $40.5K | ﹤0.01% |
+18,600
| New | +$114K |
|
5555
PUT
Vertical Aerospace
EVTL
$197M
| $40K | ﹤0.01% |
+18,100
| New | +$82.3K |
|
5556
Outset Medical
OM
$76.4M
| $39.6K | ﹤0.01% |
+10,325
| New | +$42.3K |
|
5557
Neuronetics
STIM
$129M
| $39.6K | ﹤0.01% |
+27,294
| New | +$43.3K |
|
5558
PUT
Opko Health
OPK
$891M
| $39.4K | ﹤0.01% |
+34,600
| New | +$42.6K |
|
|
SNBR
5559
PUT
DELISTED
Sleep Number
SNBR
| $39.1K | ﹤0.01% |
21,800
-4,300
| -16% | -$32.4K |
|
5560
PUT
Vista Gold
VGZ
$251M
| $38.8K | ﹤0.01% |
+19,800
| New | +$46.8K |
|
|
DEFT
5561
Defi Technologies
DEFT
$155M
| $38.5K | ﹤0.01% |
+69,642
| New | +$53.2K |
|
|
RC
5562
Ready Capital
RC
$269M
| $38.2K | ﹤0.01% |
+23,581
| New | +$45.1K |
|
|
EU
5563
enCore Energy
EU
$235M
| $38.1K | ﹤0.01% |
21,178
-133,523
| -86% | -$341K |
|
|
AIFC
5564
CALL
AI Financial Corp
AIFC
$64.7M
| $37.6K | ﹤0.01% |
+33,900
| New | +$55.2K |
|
|
AIOT
5565
PUT
PowerFleet Inc
AIOT
$521M
| $37.6K | ﹤0.01% |
+12,200
| New | +$51.1K |
|
5566
CALL
Diana Shipping
DSX
$275M
| $37.3K | ﹤0.01% |
+14,900
| New | +$34.2K |
|
|
SNBR
5567
DELISTED
Sleep Number
SNBR
| $37K | ﹤0.01% |
20,638
-8,421
| -29% | -$63.4K |
|
5568
CALL
FingerMotion
FNGR
$17.1M
| $36.8K | ﹤0.01% |
+37,000
| New | +$44.2K |
|
5569
PUT
CuriosityStream
CURI
$143M
| $36.7K | ﹤0.01% |
+12,400
| New | +$41.9K |
|
5570
CALL
Backblaze
BLZE
$750M
| $36.6K | ﹤0.01% |
+10,600
| New | +$44.6K |
|
5571
PUT
Blend Labs
BLND
$419M
| $36.4K | ﹤0.01% |
+21,400
| New | +$45.7K |
|
5572
New Fortress Energy
NFE
$96.7M
| $36.1K | ﹤0.01% |
61,246
-263,747
| -81% | -$309K |
|
5573
PUT
Chegg
CHGG
$104M
| $36K | ﹤0.01% |
+48,600
| New | +$34.1K |
|
5574
CALL
Maravai LifeSciences
MRVI
$1.04B
| $35.9K | ﹤0.01% |
+12,700
| New | +$43.1K |
|
|
SRG
5575
PUT
Seritage Growth Properties
SRG
$133M
| $35.7K | ﹤0.01% |
+12,700
| New | +$39.7K |
|
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.