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 | |
|---|---|---|---|---|---|---|
2326
CALL
RingCentral
RNG
$3.32B
| $2.61M | ﹤0.01% |
70,100
+6,600
| +10% | +$213K |
|
2327
CALL
Warner Music
WMG
$14.6B
| $2.61M | ﹤0.01% |
102,000
+18,900
| +23% | +$536K |
|
2328
CALL
Millicom
TIGO
$16.5B
| $2.59M | ﹤0.01% |
34,600
+18,600
| +116% | +$1.22M |
|
2329
SentinelOne
S
$6.45B
| $2.58M | ﹤0.01% |
200,641
-350,588
| -64% | -$4.87M |
|
|
ONC
2330
PUT
BeOne Medicines Ltd
ONC
$33.1B
| $2.58M | ﹤0.01% |
+8,700
| New | +$2.82M |
|
2331
PUT
ArcelorMittal
MT
$49.6B
| $2.58M | ﹤0.01% |
49,700
+21,100
| +74% | +$1.17M |
|
2332
PUT
Hasbro
HAS
$12.6B
| $2.58M | ﹤0.01% |
27,600
-79,300
| -74% | -$7.41M |
|
2333
MongoDB
MDB
$24.7B
| $2.58M | ﹤0.01% |
+10,554
| New | +$3.53M |
|
2334
CALL
Equifax
EFX
$20.6B
| $2.58M | ﹤0.01% |
14,300
-10,100
| -41% | -$2.01M |
|
2335
PUT
SK Telecom
SKM
$12.3B
| $2.57M | ﹤0.01% |
+87,900
| New | +$2.42M |
|
2336
CALL
AvalonBay Communities
AVB
$27.1B
| $2.56M | ﹤0.01% |
15,700
+3,600
| +30% | +$629K |
|
2337
CALL
Cedar Fair
FUN
$1.8B
| $2.56M | ﹤0.01% |
144,400
-41,100
| -22% | -$694K |
|
2338
ProShares UltraPro Dow 30
UDOW
$864M
| $2.56M | ﹤0.01% |
51,052
-11,197
| -18% | -$655K |
|
2339
PUT
Bath & Body Works
BBWI
$4.09B
| $2.56M | ﹤0.01% |
137,000
-272,700
| -67% | -$5.9M |
|
2340
CALL
Boston Beer
SAM
$1.78B
| $2.56M | ﹤0.01% |
+11,100
| New | +$2.5M |
|
2341
CALL
Impinj
PI
$4.14B
| $2.56M | ﹤0.01% |
24,900
+14,400
| +137% | +$1.92M |
|
2342
PUT
Owens Corning
OC
$11.3B
| $2.55M | ﹤0.01% |
23,600
-15,000
| -39% | -$1.79M |
|
2343
CALL
Lightpath Technologies
LPTH
$795M
| $2.55M | ﹤0.01% |
254,400
+206,900
| +436% | +$2.37M |
|
2344
PUT
VICI Properties
VICI
$29.3B
| $2.55M | ﹤0.01% |
93,300
-18,000
| -16% | -$515K |
|
2345
Redwire
RDW
$2.25B
| $2.55M | ﹤0.01% |
299,836
-31,920
| -10% | -$313K |
|
2346
CALL
Nabors Industries
NBR
$1.25B
| $2.55M | ﹤0.01% |
29,600
-3,600
| -11% | -$261K |
|
2347
PUT
TripAdvisor
TRIP
$1.61B
| $2.55M | ﹤0.01% |
238,800
+125,100
| +110% | +$1.46M |
|
2348
CALL
ASP Isotopes
ASPI
$536M
| $2.54M | ﹤0.01% |
575,500
-260,600
| -31% | -$1.54M |
|
2349
CALL
Churchill Downs
CHDN
$5.81B
| $2.54M | ﹤0.01% |
+28,300
| New | +$2.69M |
|
2350
CALL
Yeti Holdings
YETI
$3.86B
| $2.54M | ﹤0.01% |
69,300
-12,200
| -15% | -$537K |
|
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.