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 | |
|---|---|---|---|---|---|---|
3776
CALL
International General Insurance
IGIC
$1.15B
| $1.07M | ﹤0.01% |
+40,900
| New | +$1.04M |
|
3777
CALL
ARK 21Shares Bitcoin ETF
ARKB
$3.04B
| $1.07M | ﹤0.01% |
55,000
-10,400
| -16% | -$248K |
|
3778
Nutanix
NTNX
$18.4B
| $1.07M | ﹤0.01% |
20,996
-8,300
| -28% | -$375K |
|
|
ARI
3779
CALL
Apollo Commercial Real Estate
ARI
$884M
| $1.07M | ﹤0.01% |
100,100
+40,200
| +67% | +$438K |
|
3780
Arrow Electronics
ARW
$11B
| $1.07M | ﹤0.01% |
+5,008
| New | +$1,000K |
|
3781
Alkermes
ALKS
$7.73B
| $1.07M | ﹤0.01% |
20,383
+13,504
| +196% | +$527K |
|
3782
United Microelectronic
UMC
$52.1B
| $1.07M | ﹤0.01% |
39,242
+15,713
| +67% | +$269K |
|
3783
Parker-Hannifin
PH
$121B
| $1.07M | ﹤0.01% |
+1,089
| New | +$998K |
|
3784
PUT
PubMatic
PUBM
$752M
| $1.06M | ﹤0.01% |
81,000
+25,700
| +46% | +$267K |
|
3785
CALL
MoonLake Immunotherapeutics
MLTX
$1.28B
| $1.06M | ﹤0.01% |
54,500
-14,600
| -21% | -$265K |
|
3786
Dollar Tree
DLTR
$24.7B
| $1.06M | ﹤0.01% |
8,772
-32,527
| -79% | -$3.38M |
|
|
GOOS
3787
CALL
Canada Goose Holdings
GOOS
$795M
| $1.06M | ﹤0.01% |
111,400
+93,500
| +522% | +$986K |
|
3788
PUT
Post Holdings
POST
$3.84B
| $1.06M | ﹤0.01% |
+12,000
| New | +$1.17M |
|
3789
Triple Flag Precious Metals
TFPM
$6.99B
| $1.06M | ﹤0.01% |
35,328
+14,338
| +68% | +$461K |
|
3790
PUT
Nabors Industries
NBR
$1.38B
| $1.06M | ﹤0.01% |
12,600
-10,200
| -45% | -$949K |
|
3791
PUT
Jacobs Solutions
J
$17.1B
| $1.06M | ﹤0.01% |
8,400
+5,900
| +236% | +$726K |
|
3792
CALL
Teekay Tankers
TNK
$3.24B
| $1.06M | ﹤0.01% |
16,300
-14,600
| -47% | -$1.1M |
|
3793
GraniteShares 2x Short TSLA Daily ETF
TSDD
$21M
| $1.06M | ﹤0.01% |
150,834
+24,751
| +20% | +$215K |
|
3794
PUT
Natural Resource Partners
NRP
$1.51B
| $1.06M | ﹤0.01% |
10,900
+1,500
| +16% | +$165K |
|
3795
PUT
Healthpeak Properties
DOC
$14.2B
| $1.06M | ﹤0.01% |
49,400
-23,200
| -32% | -$433K |
|
3796
CALL
Clearway Energy Class C
CWEN
$6.53B
| $1.06M | ﹤0.01% |
30,900
+13,800
| +81% | +$535K |
|
|
ONC
3797
PUT
BeOne Medicines Ltd
ONC
$40.5B
| $1.05M | ﹤0.01% |
3,700
-5,000
| -57% | -$1.47M |
|
3798
ProShares UltraShort Russell2000
TWM
$46.2M
| $1.05M | ﹤0.01% |
50,957
+19,135
| +60% | +$463K |
|
3799
CALL
AGCO
AGCO
$9.34B
| $1.05M | ﹤0.01% |
8,800
+3,000
| +52% | +$349K |
|
3800
PUT
Cedar Fair
FUN
$1.59B
| $1.05M | ﹤0.01% |
49,400
-23,900
| -33% | -$488K |
|
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.