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 | |
|---|---|---|---|---|---|---|
3676
Portillo's
PTLO
$321M
| $1.16M | ﹤0.01% |
244,875
+26,351
| +12% | +$128K |
|
|
IMSR
3677
PUT
Terrestrial Energy
IMSR
$546M
| $1.16M | ﹤0.01% |
163,900
+74,700
| +84% | +$552K |
|
3678
Norwegian Cruise Line
NCLH
$7.15B
| $1.16M | ﹤0.01% |
54,925
-141,258
| -72% | -$2.64M |
|
3679
CALL
ABM Industries
ABM
$2.76B
| $1.16M | ﹤0.01% |
+26,200
| New | +$1.07M |
|
3680
PUT
Xerox
XRX
$436M
| $1.16M | ﹤0.01% |
370,300
+218,500
| +144% | +$546K |
|
3681
Alerian MLP ETF
AMLP
$13.5B
| $1.16M | ﹤0.01% |
22,342
+3,236
| +17% | +$170K |
|
|
AUGO
3682
PUT
Aura Minerals Inc
AUGO
$7.12B
| $1.16M | ﹤0.01% |
18,400
+6,900
| +60% | +$544K |
|
3683
Moelis & Co
MC
$5.11B
| $1.16M | ﹤0.01% |
+17,693
| New | +$1.16M |
|
3684
PUT
New Oriental
EDU
$9.47B
| $1.16M | ﹤0.01% |
25,200
-9,700
| -28% | -$493K |
|
3685
CALL
Icahn Enterprises
IEP
$4.85B
| $1.16M | ﹤0.01% |
160,200
+68,900
| +75% | +$530K |
|
3686
PUT
Invitation Homes
INVH
$16.9B
| $1.15M | ﹤0.01% |
38,200
-5,400
| -12% | -$153K |
|
3687
Assured Guaranty
AGO
$3.33B
| $1.15M | ﹤0.01% |
+14,383
| New | +$1.14M |
|
3688
Manulife Financial
MFC
$73.5B
| $1.15M | ﹤0.01% |
+28,418
| New | +$1.1M |
|
3689
CALL
UWM Holdings
UWMC
$2.36B
| $1.15M | ﹤0.01% |
502,700
-90,800
| -15% | -$282K |
|
3690
PUT
Alkami Technology
ALKT
$2.11B
| $1.15M | ﹤0.01% |
+63,500
| New | +$1.05M |
|
|
AMUU
3691
Direxion Daily AMD Bull 2X ETF
AMUU
$74.5M
| $1.15M | ﹤0.01% |
+3,976
| New | +$660K |
|
3692
CALL
Progress Software
PRGS
$1.81B
| $1.15M | ﹤0.01% |
34,200
-8,400
| -20% | -$249K |
|
3693
PUT
Northern Trust
NTRS
$34.1B
| $1.15M | ﹤0.01% |
6,600
+1,400
| +27% | +$231K |
|
3694
CALL
Jones Lang LaSalle
JLL
$16.7B
| $1.15M | ﹤0.01% |
3,700
| – | – |
|
|
ARXS
3695
Arxis Inc
ARXS
$23.1B
| $1.15M | ﹤0.01% |
+24,841
| New | +$970K |
|
3696
PUT
Banc of California
BANC
$3B
| $1.15M | ﹤0.01% |
56,100
-115,200
| -67% | -$2.2M |
|
|
BABO
3697
CALL
YieldMax BABA Option Income Strategy ETF
BABO
$24.6M
| $1.15M | ﹤0.01% |
61,900
+44,300
| +252% | +$429K |
|
3698
St. Joe Company
JOE
$3.76B
| $1.14M | ﹤0.01% |
18,264
+4,860
| +36% | +$319K |
|
|
SKYT
3699
PUT
DELISTED
SkyWater Technology
SKYT
| $1.14M | ﹤0.01% |
32,800
-21,500
| -40% | -$735K |
|
3700
PUT
Mattel
MAT
$4.15B
| $1.14M | ﹤0.01% |
82,200
+2,500
| +3% | +$36.6K |
|
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.