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 | |
|---|---|---|---|---|---|---|
|
VLD
3451
CALL
DELISTED
Velo3D, Inc.
VLD
| $1.38M | ﹤0.01% |
78,900
+67,000
| +563% | +$1.18M |
|
3452
CALL
Willdan Group
WLDN
$1.31B
| $1.38M | ﹤0.01% |
17,500
-1,300
| -7% | -$111K |
|
|
RAL
3453
CALL
Ralliant Corp
RAL
$7.02B
| $1.38M | ﹤0.01% |
18,800
+2,400
| +15% | +$134K |
|
3454
PUT
Charles River Laboratories
CRL
$13.8B
| $1.38M | ﹤0.01% |
6,100
-18,800
| -76% | -$3.35M |
|
3455
PUT
Globant
GLOB
$1.69B
| $1.38M | ﹤0.01% |
47,800
+26,000
| +119% | +$1.04M |
|
3456
PUT
Timken Company
TKR
$8.53B
| $1.38M | ﹤0.01% |
9,500
+7,500
| +375% | +$902K |
|
3457
PUT
Scholar Rock
SRRK
$6.74B
| $1.38M | ﹤0.01% |
25,100
-2,800
| -10% | -$135K |
|
3458
PUT
Critical Metals Corp
CRML
$1.07B
| $1.38M | ﹤0.01% |
134,500
+19,600
| +17% | +$210K |
|
3459
CALL
Columbia Sportswear
COLM
$2.95B
| $1.38M | ﹤0.01% |
22,300
+1,300
| +6% | +$80.5K |
|
3460
CALL
James Hardie Industries
JHX
$17.6B
| $1.38M | ﹤0.01% |
52,600
+16,000
| +44% | +$352K |
|
3461
McCormick & Company Non-Voting
MKC
$14B
| $1.37M | ﹤0.01% |
27,267
-46,904
| -63% | -$2.3M |
|
3462
CALL
Leonardo DRS
DRS
$9.77B
| $1.37M | ﹤0.01% |
32,200
-9,100
| -22% | -$404K |
|
3463
Planet Fitness
PLNT
$3.84B
| $1.37M | ﹤0.01% |
+26,278
| New | +$1.54M |
|
3464
Okta
OKTA
$29.8B
| $1.37M | ﹤0.01% |
10,047
-64,092
| -86% | -$6.03M |
|
3465
iShares MSCI Japan ETF
EWJ
$23.3B
| $1.37M | ﹤0.01% |
+14,675
| New | +$1.33M |
|
3466
Direxion Daily GOOGL Bear 1X ETF
GGLS
$10.6M
| $1.37M | ﹤0.01% |
23,901
+16,507
| +223% | +$958K |
|
|
VLD
3467
PUT
DELISTED
Velo3D, Inc.
VLD
| $1.37M | ﹤0.01% |
77,900
+51,700
| +197% | +$907K |
|
3468
Coursera
COUR
$1.53B
| $1.37M | ﹤0.01% |
242,206
+38,169
| +19% | +$217K |
|
3469
CALL
Elanco Animal Health
ELAN
$12.2B
| $1.37M | ﹤0.01% |
55,500
-9,800
| -15% | -$227K |
|
3470
PUT
Herbalife
HLF
$1.3B
| $1.36M | ﹤0.01% |
103,700
-19,000
| -15% | -$262K |
|
|
EMBJ
3471
Embraer S.A. ADS
EMBJ
$13.1B
| $1.36M | ﹤0.01% |
21,372
-3,220
| -13% | -$198K |
|
3472
CALL
PTC
PTC
$15.3B
| $1.36M | ﹤0.01% |
+12,000
| New | +$1.62M |
|
3473
Alignment Healthcare
ALHC
$2.81B
| $1.36M | ﹤0.01% |
57,199
+29,024
| +103% | +$557K |
|
3474
Capri Holdings
CPRI
$1.54B
| $1.36M | ﹤0.01% |
73,318
+8,964
| +14% | +$172K |
|
3475
PUT
Highwoods Properties
HIW
$3.44B
| $1.36M | ﹤0.01% |
45,100
-500
| -1% | -$12.9K |
|
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.