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 | |
|---|---|---|---|---|---|---|
3026
CALL
Itron
ITRI
$4.25B
| $2.02M | ﹤0.01% |
23,300
+4,700
| +25% | +$401K |
|
3027
PUT
WisdomTree US Total Dividend Fund
DTD
$1.67B
| $2.01M | ﹤0.01% |
11,600
-600
| -5% | -$54.8K |
|
3028
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$278M
| $2.01M | ﹤0.01% |
+80,816
| New | +$2.8M |
|
3029
CALL
Amcor
AMCR
$20.9B
| $2.01M | ﹤0.01% |
46,400
-3,100
| -6% | -$123K |
|
|
BTC
3030
PUT
Grayscale Bitcoin Mini Trust ETF
BTC
$4.23B
| $2.01M | ﹤0.01% |
77,500
-41,700
| -35% | -$1.32M |
|
3031
SoundHound AI
SOUN
$2.99B
| $2.01M | ﹤0.01% |
310,417
+160,388
| +107% | +$1.24M |
|
3032
CALL
Proshares UltraShort Technology
REW
$3.46M
| $2.01M | ﹤0.01% |
72,100
-418,950
| -85% | -$6.46M |
|
3033
PUT
Vita Coco
COCO
$3.19B
| $2M | ﹤0.01% |
30,300
+24,100
| +389% | +$1.63M |
|
3034
Guardant Health
GH
$21.7B
| $2M | ﹤0.01% |
13,342
+1,955
| +17% | +$213K |
|
3035
CALL
Remitly
RELY
$5.54B
| $2M | ﹤0.01% |
89,200
+2,300
| +3% | +$47.1K |
|
3036
CALL
Albertsons Companies
ACI
$6.09B
| $2M | ﹤0.01% |
147,700
+59,500
| +67% | +$952K |
|
3037
PUT
Freshpet
FRPT
$3.38B
| $2M | ﹤0.01% |
33,800
+20,300
| +150% | +$1.16M |
|
3038
PUT
ClearPoint Neuro
CLPT
$426M
| $2M | ﹤0.01% |
112,000
+52,100
| +87% | +$651K |
|
3039
CALL
Ericsson
ERIC
$33B
| $2M | ﹤0.01% |
179,200
+17,200
| +11% | +$207K |
|
3040
PUT
Carlisle Companies
CSL
$14B
| $2M | ﹤0.01% |
5,500
+1,500
| +38% | +$525K |
|
|
TEN
3041
Tsakos Energy Navigation Ltd
TEN
$1.32B
| $1.99M | ﹤0.01% |
56,345
+3,855
| +7% | +$153K |
|
3042
PUT
BRC Group Holdings
RILY
$283M
| $1.99M | ﹤0.01% |
247,600
+75,000
| +43% | +$638K |
|
3043
PUT
Cogent Communications
CCOI
$515M
| $1.99M | ﹤0.01% |
143,400
+81,400
| +131% | +$1.5M |
|
3044
PUT
Lightwave Logic
LWLG
$825M
| $1.99M | ﹤0.01% |
210,400
+100,000
| +91% | +$1.17M |
|
3045
CALL
OSI Systems
OSIS
$3.25B
| $1.99M | ﹤0.01% |
9,100
+5,300
| +139% | +$1.3M |
|
|
APPX
3046
Tradr 2X Long APP Daily ETF
APPX
$103M
| $1.99M | ﹤0.01% |
49,154
+31,736
| +182% | +$1.21M |
|
3047
PUT
BioMarin Pharmaceuticals
BMRN
$12.9B
| $1.98M | ﹤0.01% |
34,600
+3,800
| +12% | +$208K |
|
3048
PUT
Organon & Co
OGN
$3.62B
| $1.98M | ﹤0.01% |
146,000
-45,400
| -24% | -$543K |
|
3049
PUT
Magna International
MGA
$18.4B
| $1.98M | ﹤0.01% |
30,100
+3,300
| +12% | +$206K |
|
3050
Cognizant
CTSH
$28.1B
| $1.97M | ﹤0.01% |
+50,915
| New | +$2.68M |
|
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.