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 | |
|---|---|---|---|---|---|---|
2026
Entegris
ENTG
$21.2B
| $5.44M | ﹤0.01% |
+30,218
| New | +$4.36M |
|
2027
PUT
Kenvue
KVUE
$36B
| $5.43M | ﹤0.01% |
284,400
-384,800
| -58% | -$6.78M |
|
|
GLXY
2028
Galaxy Digital Inc
GLXY
$5.12B
| $5.43M | ﹤0.01% |
198,554
+121,758
| +159% | +$3.39M |
|
2029
Direxion Daily AMZN Bull 2X ETF
AMZU
$278M
| $5.41M | ﹤0.01% |
+162,941
| New | +$6.23M |
|
2030
CALL
Cal-Maine
CALM
$3.49B
| $5.39M | ﹤0.01% |
66,900
+8,700
| +15% | +$672K |
|
2031
PUT
VeriSign
VRSN
$26.4B
| $5.38M | ﹤0.01% |
21,400
+11,200
| +110% | +$3.11M |
|
2032
SK Telecom
SKM
$14.9B
| $5.37M | ﹤0.01% |
167,090
+87,540
| +110% | +$3.24M |
|
2033
CALL
Avnet
AVT
$7.56B
| $5.37M | ﹤0.01% |
60,500
+53,100
| +718% | +$4.34M |
|
2034
PUT
Shift4
FOUR
$3.63B
| $5.37M | ﹤0.01% |
110,400
+21,500
| +24% | +$929K |
|
|
PRMB
2035
CALL
Primo Brands
PRMB
$7.96B
| $5.37M | ﹤0.01% |
219,600
+136,000
| +163% | +$3.02M |
|
2036
CALL
Incyte
INCY
$25.7B
| $5.36M | ﹤0.01% |
47,300
+11,600
| +32% | +$1.15M |
|
2037
CALL
StoneCo
STNE
$2.33B
| $5.36M | ﹤0.01% |
494,200
+156,400
| +46% | +$1.85M |
|
|
KRMN
2038
Karman Holdings
KRMN
$5.3B
| $5.36M | ﹤0.01% |
+107,287
| New | +$6.94M |
|
|
TEM
2039
Tempus AI
TEM
$11.7B
| $5.35M | ﹤0.01% |
92,439
+17,337
| +23% | +$869K |
|
2040
PUT
AutoNation
AN
$7.02B
| $5.35M | ﹤0.01% |
28,800
+19,400
| +206% | +$3.79M |
|
2041
PUT
TPG
TPG
$8.78B
| $5.32M | ﹤0.01% |
131,300
+93,300
| +246% | +$3.92M |
|
|
GRMN
2042
PUT
Garmin
GRMN
$53.4B
| $5.32M | ﹤0.01% |
22,400
-12,300
| -35% | -$2.99M |
|
2043
CALL
Chemed
CHE
$6.79B
| $5.31M | ﹤0.01% |
11,400
+10,000
| +714% | +$4.2M |
|
|
TUZ
2044
CALL
DELISTED
PIMCO 1-3 Year U.S. Treasury Index Exchange-Traded Fund
TUZ
| $5.29M | ﹤0.01% |
84,000
+60,700
| +261% | +$3.82M |
|
2045
PUT
Elastic
ESTC
$9.64B
| $5.29M | ﹤0.01% |
92,700
+44,200
| +91% | +$2.37M |
|
|
2046
Elastic
ESTC
$9.64B
| $5.28M | ﹤0.01% |
+92,533
| New | +$4.96M |
|
2047
PUT
Zebra Technologies
ZBRA
$17.2B
| $5.27M | ﹤0.01% |
20,000
+11,900
| +147% | +$2.8M |
|
2048
CALL
International Flavors & Fragrances
IFF
$22B
| $5.26M | ﹤0.01% |
66,400
+34,400
| +108% | +$2.56M |
|
2049
PUT
Tema Durable Quality ETF
TOLL
$58.3M
| $5.24M | ﹤0.01% |
+172,500
| New | +$6.58M |
|
2050
CALL
Krystal Biotech
KRYS
$10.6B
| $5.24M | ﹤0.01% |
14,100
+11,100
| +370% | +$3.32M |
|
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.