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 | |
|---|---|---|---|---|---|---|
3076
PUT
Lantheus
LNTH
$6.59B
| $1.93M | ﹤0.01% |
17,400
-13,600
| -44% | -$1.27M |
|
3077
PUT
Penumbra
PEN
$12.7B
| $1.93M | ﹤0.01% |
6,100
+3,000
| +97% | +$972K |
|
3078
CALL
UL Solutions
ULS
$14.9B
| $1.93M | ﹤0.01% |
18,900
+12,600
| +200% | +$1.19M |
|
|
FETH
3079
CALL
Fidelity Ethereum Fund
FETH
$1.33B
| $1.93M | ﹤0.01% |
122,300
+49,900
| +69% | +$1.02M |
|
3080
Stride
LRN
$3.52B
| $1.92M | ﹤0.01% |
22,307
+12,469
| +127% | +$1.15M |
|
|
PSIX
3081
CALL
Power Solutions International
PSIX
$934M
| $1.92M | ﹤0.01% |
49,400
-9,200
| -16% | -$506K |
|
3082
PUT
KE Holdings
BEKE
$19.8B
| $1.92M | ﹤0.01% |
132,000
-6,700
| -5% | -$110K |
|
3083
Crescent Energy
CRGY
$4.55B
| $1.92M | ﹤0.01% |
195,114
+25,713
| +15% | +$314K |
|
3084
CALL
Organon & Co
OGN
$3.62B
| $1.91M | ﹤0.01% |
141,300
-44,800
| -24% | -$536K |
|
3085
CALL
Banc of California
BANC
$3B
| $1.91M | ﹤0.01% |
93,600
+59,000
| +171% | +$1.12M |
|
3086
PUT
Manhattan Associates
MANH
$12.5B
| $1.91M | ﹤0.01% |
13,700
+7,900
| +136% | +$1.09M |
|
|
AEVA
3087
Aeva Technologies
AEVA
$1.09B
| $1.9M | ﹤0.01% |
66,216
+31,584
| +91% | +$622K |
|
3088
PUT
Thor Industries
THO
$4.01B
| $1.9M | ﹤0.01% |
25,300
+10,800
| +74% | +$831K |
|
3089
PUT
HDFC Bank
HDB
$119B
| $1.9M | ﹤0.01% |
73,600
+28,600
| +64% | +$717K |
|
3090
PUT
Churchill Downs
CHDN
$6.07B
| $1.9M | ﹤0.01% |
21,200
-25,500
| -55% | -$2.29M |
|
3091
PUT
B2Gold
BTG
$7.41B
| $1.9M | ﹤0.01% |
507,500
-182,300
| -26% | -$836K |
|
3092
CALL
Kyndryl
KD
$2.86B
| $1.9M | ﹤0.01% |
167,800
+15,100
| +10% | +$188K |
|
3093
PUT
Vanguard High Dividend Yield ETF
VYM
$82.8B
| $1.9M | ﹤0.01% |
12,000
+500
| +4% | +$78.1K |
|
|
QPUX
3094
PUT
Defiance 2X Daily Long Pure Quantum ETF
QPUX
$32M
| $1.9M | ﹤0.01% |
147,600
+43,700
| +42% | +$1.33M |
|
3095
CALL
Boston Beer
SAM
$1.74B
| $1.89M | ﹤0.01% |
10,700
-400
| -4% | -$81.1K |
|
3096
CALL
Rithm Capital
RITM
$5.63B
| $1.89M | ﹤0.01% |
201,700
+35,800
| +22% | +$341K |
|
3097
Workday
WDAY
$47.2B
| $1.89M | ﹤0.01% |
+15,469
| New | +$1.96M |
|
3098
PUT
Main Street Capital
MAIN
$5.39B
| $1.89M | ﹤0.01% |
36,500
+19,100
| +110% | +$1.01M |
|
3099
PUT
Atkore
ATKR
$3.17B
| $1.89M | ﹤0.01% |
24,900
+8,700
| +54% | +$655K |
|
3100
Sunrun
RUN
$2.14B
| $1.89M | ﹤0.01% |
+141,185
| New | +$1.91M |
|
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.