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 | |
|---|---|---|---|---|---|---|
3851
CALL
First Trust Capital Strength ETF
FTCS
$7.84B
| $1.01M | ﹤0.01% |
3,800
+1,500
| +65% | +$140K |
|
3852
ZTO Express
ZTO
$15.9B
| $1.01M | ﹤0.01% |
+44,932
| New | +$1.07M |
|
3853
Agilon Health
AGL
$1.49B
| $1.01M | ﹤0.01% |
+9,379
| New | +$614K |
|
3854
dLocal
DLO
$4.57B
| $1M | ﹤0.01% |
77,245
-230,852
| -75% | -$2.93M |
|
3855
Stellantis
STLA
$16.1B
| $1M | ﹤0.01% |
+174,639
| New | +$1.29M |
|
3856
CALL
POSCO
PKX
$19B
| $1M | ﹤0.01% |
19,500
+15,600
| +400% | +$1.07M |
|
3857
CALL
PubMatic
PUBM
$752M
| $1,000K | ﹤0.01% |
76,200
+36,800
| +93% | +$382K |
|
3858
PUT
Arch Capital
ACGL
$33.5B
| $1,000K | ﹤0.01% |
10,300
-1,400
| -12% | -$132K |
|
3859
CALL
Upbound Group
UPBD
$1.11B
| $999K | ﹤0.01% |
47,100
+27,300
| +138% | +$510K |
|
3860
PACS Group
PACS
$6.73B
| $998K | ﹤0.01% |
23,405
+2,764
| +13% | +$99.4K |
|
3861
PUT
Invesco
IVZ
$14.6B
| $998K | ﹤0.01% |
37,800
+2,400
| +7% | +$63.6K |
|
|
LOMA
3862
CALL
Loma Negra
LOMA
$1.2B
| $997K | ﹤0.01% |
87,100
+73,200
| +527% | +$833K |
|
3863
Veralto
VLTO
$23.5B
| $997K | ﹤0.01% |
+11,239
| New | +$976K |
|
3864
CALL
Adtran
ADTN
$579M
| $997K | ﹤0.01% |
71,700
+57,400
| +401% | +$896K |
|
3865
PUT
Kaspi.kz JSC
KSPI
$20.4B
| $996K | ﹤0.01% |
11,500
+1,200
| +12% | +$102K |
|
3866
CALL
Genworth Financial
GNW
$3.91B
| $995K | ﹤0.01% |
105,100
+19,000
| +22% | +$169K |
|
3867
CALL
Pembina Pipeline
PBA
$28.2B
| $994K | ﹤0.01% |
21,500
+16,700
| +348% | +$773K |
|
3868
CALL
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$28.4M
| $994K | ﹤0.01% |
19,700
-17,200
| -47% | -$944K |
|
3869
Cinemark Holdings
CNK
$4.06B
| $994K | ﹤0.01% |
31,323
-23,219
| -43% | -$689K |
|
3870
PUT
Acadia Healthcare
ACHC
$2.62B
| $992K | ﹤0.01% |
33,600
-12,900
| -28% | -$331K |
|
3871
ITT
ITT
$18.3B
| $992K | ﹤0.01% |
5,016
-194
| -4% | -$39.2K |
|
|
TSMX
3872
Direxion Daily TSM Bull 2X ETF
TSMX
$600M
| $990K | ﹤0.01% |
+9,451
| New | +$754K |
|
3873
Lumen
LUMN
$6.98B
| $990K | ﹤0.01% |
128,915
-73,812
| -36% | -$647K |
|
3874
PUT
Structure Therapeutics
GPCR
$3.38B
| $988K | ﹤0.01% |
+18,400
| New | +$814K |
|
3875
CALL
MarketAxess Holdings
MKTX
$5.75B
| $987K | ﹤0.01% |
8,700
-2,200
| -20% | -$313K |
|
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.