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 | |
|---|---|---|---|---|---|---|
3951
PUT
Sun Life Financial
SLF
$45.1B
| $925K | ﹤0.01% |
+11,800
| New | +$849K |
|
3952
CALL
IMAX
IMAX
$2.83B
| $925K | ﹤0.01% |
23,200
-11,400
| -33% | -$437K |
|
3953
CALL
Sunoco
SUN
$14.2B
| $925K | ﹤0.01% |
13,700
+3,400
| +33% | +$226K |
|
|
CNR
3954
Core Natural Resources Inc
CNR
$4.94B
| $924K | ﹤0.01% |
+11,553
| New | +$1.02M |
|
3955
Vanguard Total International Stock ETF
VXUS
$165B
| $924K | ﹤0.01% |
10,809
-4,070
| -27% | -$341K |
|
3956
ENI
E
$77.1B
| $924K | ﹤0.01% |
+19,712
| New | +$1.06M |
|
3957
PUT
PAR Technology
PAR
$818M
| $923K | ﹤0.01% |
53,000
-3,800
| -7% | -$54.8K |
|
|
SHAZ
3958
PUT
SharonAI Holdings
SHAZ
$2B
| $923K | ﹤0.01% |
+10,900
| New | +$615K |
|
|
LAC
3959
Lithium Americas
LAC
$1.09B
| $921K | ﹤0.01% |
239,176
+49,165
| +26% | +$234K |
|
3960
PUT
Diodes
DIOD
$4.23B
| $919K | ﹤0.01% |
8,400
+800
| +11% | +$81.2K |
|
3961
PUT
MarketAxess Holdings
MKTX
$5.75B
| $919K | ﹤0.01% |
8,100
+3,700
| +84% | +$527K |
|
3962
CALL
Domo
DOMO
$183M
| $919K | ﹤0.01% |
293,600
-44,000
| -13% | -$147K |
|
|
BPRE
3963
Bluerock Private Real Estate Fund
BPRE
| $918K | ﹤0.01% |
+70,580
| New | +$1.1M |
|
3964
PUT
Solventum
SOLV
$15.6B
| $918K | ﹤0.01% |
11,900
+3,900
| +49% | +$284K |
|
3965
PUT
Brown & Brown
BRO
$23.9B
| $917K | ﹤0.01% |
14,300
+4,700
| +49% | +$287K |
|
3966
PUT
Vanguard S&P 500 Growth ETF
VOOG
$27.1B
| $917K | ﹤0.01% |
11,100
-10,500
| -49% | -$833K |
|
3967
CALL
Ziff Davis
ZD
$1.91B
| $916K | ﹤0.01% |
+17,500
| New | +$792K |
|
3968
PUT
Haemonetics
HAE
$4.68B
| $915K | ﹤0.01% |
+12,200
| New | +$784K |
|
3969
CALL
Amdocs
DOX
$6.5B
| $915K | ﹤0.01% |
18,100
-22,100
| -55% | -$1.36M |
|
3970
CALL
Applied Industrial Technologies
AIT
$11.9B
| $913K | ﹤0.01% |
2,700
+900
| +50% | +$276K |
|
3971
PUT
Legend Biotech
LEGN
$4.19B
| $913K | ﹤0.01% |
31,600
+9,100
| +40% | +$245K |
|
3972
Federal Agricultural Mortgage
AGM
$2.47B
| $912K | ﹤0.01% |
4,577
+981
| +27% | +$172K |
|
3973
Xenon Pharmaceuticals
XENE
$5.79B
| $910K | ﹤0.01% |
+15,083
| New | +$837K |
|
3974
Phillips 66
PSX
$102B
| $910K | ﹤0.01% |
+5,384
| New | +$927K |
|
|
ADUR
3975
CALL
Aduro Clean Technologies
ADUR
$485M
| $909K | ﹤0.01% |
57,700
+26,100
| +83% | +$354K |
|
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.