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 | |
|---|---|---|---|---|---|---|
|
SFIX
5301
PUT
Stitch Fix
SFIX
$471M
| $110K | ﹤0.01% |
33,100
-49,500
| -60% | -$202K |
|
|
XNET
5302
CALL
Xunlei
XNET
$354M
| $109K | ﹤0.01% |
+19,600
| New | +$125K |
|
|
XNET
5303
PUT
Xunlei
XNET
$354M
| $109K | ﹤0.01% |
+19,600
| New | +$125K |
|
5304
CALL
Paysafe
PSFE
$397M
| $109K | ﹤0.01% |
+16,000
| New | +$113K |
|
|
LAR
5305
PUT
Lithium Argentina AG
LAR
$994M
| $109K | ﹤0.01% |
+16,300
| New | +$117K |
|
|
AVR
5306
CALL
Anteris Technologies
AVR
$797M
| $109K | ﹤0.01% |
+19,600
| New | +$113K |
|
5307
PUT
Energy Recovery
ERII
$433M
| $109K | ﹤0.01% |
+10,800
| New | +$141K |
|
5308
CALL
BGC Group
BGC
$5.55B
| $108K | ﹤0.01% |
+11,000
| New | +$102K |
|
|
INV
5309
CALL
Innventure Inc
INV
$250M
| $108K | ﹤0.01% |
+27,500
| New | +$97.1K |
|
5310
Target Hospitality
TH
$1.63B
| $107K | ﹤0.01% |
+11,580
| New | +$91.9K |
|
5311
PUT
New Fortress Energy
NFE
$95.7M
| $107K | ﹤0.01% |
181,400
-335,700
| -65% | -$393K |
|
5312
PUT
NerdWallet
NRDS
$573M
| $107K | ﹤0.01% |
+10,300
| New | +$116K |
|
5313
PUT
Invesco Mortgage Capital
IVR
$782M
| $107K | ﹤0.01% |
+13,200
| New | +$113K |
|
|
MTA
5314
CALL
Metalla Royalty & Streaming
MTA
$706M
| $105K | ﹤0.01% |
+15,900
| New | +$126K |
|
5315
PUT
Editas Medicine
EDIT
$419M
| $105K | ﹤0.01% |
+42,500
| New | +$89.9K |
|
|
BDN
5316
PUT
Brandywine Realty Trust
BDN
$533M
| $105K | ﹤0.01% |
+38,700
| New | +$116K |
|
5317
PUT
Rapid7
RPD
$639M
| $105K | ﹤0.01% |
19,000
-41,500
| -69% | -$381K |
|
5318
Talkspace
TALK
$873M
| $104K | ﹤0.01% |
+20,147
| New | +$89.1K |
|
5319
Acacia Research
ACTG
$446M
| $104K | ﹤0.01% |
+21,620
| New | +$91.1K |
|
5320
PUT
Funko
FNKO
$319M
| $104K | ﹤0.01% |
+32,900
| New | +$131K |
|
|
RWT
5321
PUT
Redwood Trust
RWT
$614M
| $103K | ﹤0.01% |
+18,400
| New | +$107K |
|
|
LX
5322
PUT
LexinFintech Holdings
LX
$241M
| $103K | ﹤0.01% |
+47,100
| New | +$132K |
|
5323
CALL
Blink Charging
BLNK
$79.6M
| $102K | ﹤0.01% |
180,600
-143,600
| -44% | -$101K |
|
5324
PUT
GeoPark
GPRK
$666M
| $102K | ﹤0.01% |
+10,700
| New | +$90.1K |
|
|
SMCC
5325
PUT
DELISTED
Defiance Leveraged Long + Income SMCI ETF
SMCC
| $102K | ﹤0.01% |
+16,800
| New | +$107K |
|
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.