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 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
SNDK
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3201
Crown Castle
CCI
$32.3B
| $1.73M | ﹤0.01% |
22,791
+9,754
| +75% | +$857K |
|
3202
GigaCloud Technology
GCT
$1.85B
| $1.72M | ﹤0.01% |
54,501
+8,070
| +17% | +$318K |
|
3203
PUT
Gen Digital
GEN
$18.3B
| $1.72M | ﹤0.01% |
69,100
+31,800
| +85% | +$710K |
|
3204
PUT
Enovix
ENVX
$729M
| $1.72M | ﹤0.01% |
283,200
+136,400
| +93% | +$904K |
|
3205
PUT
TransUnion
TRU
$15.3B
| $1.72M | ﹤0.01% |
23,800
+15,400
| +183% | +$1.08M |
|
3206
CALL
AMN Healthcare
AMN
$1.31B
| $1.72M | ﹤0.01% |
53,000
-12,500
| -19% | -$322K |
|
|
PLTG
3207
CALL
Leverage Shares 2X Long PLTR Daily ETF
PLTG
$31.3M
| $1.71M | ﹤0.01% |
+65,200
| New | +$859K |
|
3208
Invesco CurrencyShares Japanese Yen Trust
FXY
$469M
| $1.71M | ﹤0.01% |
30,341
+6,558
| +28% | +$378K |
|
|
GRAL
3209
GRAIL Inc
GRAL
$3.59B
| $1.71M | ﹤0.01% |
25,053
+3,039
| +14% | +$179K |
|
3210
PUT
Array Technologies
ARRY
$708M
| $1.71M | ﹤0.01% |
230,600
+77,300
| +50% | +$616K |
|
3211
PUT
Shoals Technologies Group
SHLS
$1.2B
| $1.71M | ﹤0.01% |
172,400
+103,900
| +152% | +$943K |
|
3212
PUT
Rackspace Technology
RXT
$813M
| $1.7M | ﹤0.01% |
261,000
+141,700
| +119% | +$553K |
|
3213
CALL
Clean Harbors
CLH
$16.7B
| $1.7M | ﹤0.01% |
5,700
+3,800
| +200% | +$1.12M |
|
3214
CALL
Cemex
CX
$15.9B
| $1.7M | ﹤0.01% |
141,800
-168,100
| -54% | -$2.09M |
|
3215
Range Resources
RRC
$9.81B
| $1.7M | ﹤0.01% |
+45,722
| New | +$1.86M |
|
3216
CALL
Critical Metals Corp
CRML
$1.07B
| $1.7M | ﹤0.01% |
165,800
+14,700
| +10% | +$157K |
|
|
CWVX
3217
CALL
Tradr 2X Long CRWV Daily ETF
CWVX
$96.5M
| $1.7M | ﹤0.01% |
51,900
-14,500
| -22% | -$498K |
|
3218
CALL
Bruker
BRKR
$8.91B
| $1.7M | ﹤0.01% |
28,200
-7,500
| -21% | -$350K |
|
3219
CALL
Toro Company
TTC
$8.83B
| $1.7M | ﹤0.01% |
17,400
+9,300
| +115% | +$865K |
|
3220
Chemours
CC
$2.3B
| $1.69M | ﹤0.01% |
82,518
-51,890
| -39% | -$1.19M |
|
3221
PUT
Helmerich & Payne
HP
$4.43B
| $1.69M | ﹤0.01% |
51,700
+7,200
| +16% | +$269K |
|
3222
Vita Coco
COCO
$3.19B
| $1.69M | ﹤0.01% |
+25,565
| New | +$1.73M |
|
3223
TPG
TPG
$8.78B
| $1.69M | ﹤0.01% |
+41,694
| New | +$1.75M |
|
3224
James Hardie Industries
JHX
$17.6B
| $1.69M | ﹤0.01% |
64,551
+45,223
| +234% | +$994K |
|
3225
PUT
Liberty Energy
LBRT
$3.36B
| $1.69M | ﹤0.01% |
64,500
-22,000
| -25% | -$658K |
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
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 Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.