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 | |
|---|---|---|---|---|---|---|
1951
PUT
Amdocs
DOX
$6.5B
| $5.98M | ﹤0.01% |
118,400
+87,900
| +288% | +$5.39M |
|
1952
PUT
Celcuity
CELC
$4.68B
| $5.97M | ﹤0.01% |
57,100
+30,800
| +117% | +$3.55M |
|
1953
Voya Financial
VOYA
$9.43B
| $5.97M | ﹤0.01% |
+65,974
| New | +$5.37M |
|
1954
Amer Sports
AS
$17.2B
| $5.95M | ﹤0.01% |
175,784
+133,683
| +318% | +$4.68M |
|
1955
PUT
SM Energy
SM
$8.67B
| $5.94M | ﹤0.01% |
227,700
-10,500
| -4% | -$315K |
|
1956
PUT
PennyMac Financial
PFSI
$3.81B
| $5.94M | ﹤0.01% |
68,200
-53,000
| -44% | -$4.61M |
|
1957
PUT
Canadian Imperial Bank of Commerce
CM
$107B
| $5.93M | ﹤0.01% |
51,600
+36,500
| +242% | +$4M |
|
1958
CALL
Scorpio Tankers
STNG
$4.12B
| $5.93M | ﹤0.01% |
85,600
+36,200
| +73% | +$2.83M |
|
1959
CALL
Globus Medical
GMED
$10.5B
| $5.93M | ﹤0.01% |
75,000
+64,100
| +588% | +$5.45M |
|
1960
PUT
Nice
NICE
$6.18B
| $5.92M | ﹤0.01% |
65,200
-23,200
| -26% | -$2.25M |
|
1961
Kratos Defense & Security Solutions
KTOS
$8.98B
| $5.92M | ﹤0.01% |
118,768
+99,340
| +511% | +$6.01M |
|
|
NUAI
1962
CALL
New Era Energy & Digital Inc
NUAI
$576M
| $5.92M | ﹤0.01% |
927,700
+685,200
| +283% | +$3.33M |
|
1963
PUT
Aflac
AFL
$58.8B
| $5.91M | ﹤0.01% |
50,400
+11,300
| +29% | +$1.3M |
|
|
TBXU
1964
PUT
Direxion Daily Biotech Top 5 Bull 2X ETF
TBXU
$5.55M
| $5.9M | ﹤0.01% |
1,821,100
+925,600
| +103% | +$27.9M |
|
1965
CALL
Universal Technical Institute
UTI
$1.22B
| $5.89M | ﹤0.01% |
137,800
+82,200
| +148% | +$3.16M |
|
|
1966
CALL
SM Energy
SM
$8.67B
| $5.89M | ﹤0.01% |
225,500
-25,100
| -10% | -$754K |
|
|
VNET
1967
PUT
VNET Group
VNET
$1.81B
| $5.87M | ﹤0.01% |
730,100
+456,100
| +166% | +$4.14M |
|
|
NVMI
1968
PUT
Nova
NVMI
$11.8B
| $5.86M | ﹤0.01% |
10,800
+6,200
| +135% | +$3.19M |
|
1969
CALL
Entergy
ETR
$51.3B
| $5.86M | ﹤0.01% |
51,000
+17,500
| +52% | +$1.97M |
|
|
PURR
1970
CALL
Hyperliquid Strategies Inc
PURR
$2.41B
| $5.86M | ﹤0.01% |
+744,000
| New | +$5.51M |
|
1971
Ecolab
ECL
$78.3B
| $5.85M | ﹤0.01% |
20,998
-375
| -2% | -$98.8K |
|
1972
CALL
Noble Corp
NE
$7.28B
| $5.85M | ﹤0.01% |
156,800
+55,500
| +55% | +$2.65M |
|
1973
CALL
PureCycle Technologies
PCT
$1.28B
| $5.84M | ﹤0.01% |
720,000
-88,500
| -11% | -$794K |
|
1974
PUT
Omnicom Group
OMC
$22.7B
| $5.83M | ﹤0.01% |
80,100
-71,500
| -47% | -$5.38M |
|
1975
PUT
Xcel Energy
XEL
$47.3B
| $5.83M | ﹤0.01% |
72,600
+38,000
| +110% | +$3.03M |
|
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.