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 | |
|---|---|---|---|---|---|---|
1526
Danaher
DHR
$146B
| $10.2M | ﹤0.01% |
53,471
+27,545
| +106% | +$5M |
|
1527
CALL
Diageo
DEO
$49.6B
| $10.2M | ﹤0.01% |
126,700
+27,800
| +28% | +$2.24M |
|
1528
CALL
Transmedics
TMDX
$3.12B
| $10.2M | ﹤0.01% |
153,300
+53,700
| +54% | +$4.55M |
|
1529
Amprius Technologies
AMPX
$1.44B
| $10.2M | ﹤0.01% |
734,114
+671,435
| +1,071% | +$12M |
|
1530
CALL
Dropbox
DBX
$7.57B
| $10.2M | ﹤0.01% |
369,900
+158,500
| +75% | +$4.07M |
|
1531
CALL
UiPath
PATH
$7.87B
| $10.2M | ﹤0.01% |
934,600
-61,900
| -6% | -$661K |
|
1532
CALL
Vulcan Materials
VMC
$34B
| $10.1M | ﹤0.01% |
34,400
+9,400
| +38% | +$2.69M |
|
1533
CALL
Ionis Pharmaceuticals
IONS
$9.65B
| $10.1M | ﹤0.01% |
127,800
+77,000
| +152% | +$5.79M |
|
1534
CALL
Red Cat Holdings
RCAT
$1.28B
| $10.1M | ﹤0.01% |
946,600
+60,600
| +7% | +$698K |
|
1535
CALL
Caesars Entertainment
CZR
$6.05B
| $10.1M | ﹤0.01% |
334,000
-176,300
| -35% | -$4.97M |
|
1536
PUT
United States Brent Oil Fund
BNO
$696M
| $10M | ﹤0.01% |
246,900
+127,500
| +107% | +$6.5M |
|
1537
PUT
Advance Auto Parts
AAP
$2.67B
| $10M | ﹤0.01% |
160,900
-16,800
| -9% | -$953K |
|
1538
PUT
SharkNinja
SN
$24.4B
| $10M | ﹤0.01% |
65,700
+33,600
| +105% | +$4.02M |
|
1539
PUT
Edwards Lifesciences
EW
$51.8B
| $10M | ﹤0.01% |
110,500
-29,400
| -21% | -$2.46M |
|
1540
CALL
BlackSky Technology
BKSY
$839M
| $9.99M | ﹤0.01% |
357,800
+153,300
| +75% | +$5.54M |
|
1541
PUT
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.5B
| $9.99M | ﹤0.01% |
14,200
-7,500
| -35% | -$5.02M |
|
1542
PUT
Fluor
FLR
$7.51B
| $9.97M | ﹤0.01% |
190,300
+46,400
| +32% | +$2.27M |
|
1543
CALL
Old Dominion Freight Line
ODFL
$38.5B
| $9.96M | ﹤0.01% |
46,000
+11,600
| +34% | +$2.5M |
|
|
FLG
1544
CALL
Flagstar Bank National Association
FLG
$5.61B
| $9.96M | ﹤0.01% |
666,900
-57,200
| -8% | -$811K |
|
1545
CALL
NextDecade
NEXT
$1.95B
| $9.94M | ﹤0.01% |
1,318,500
+457,300
| +53% | +$3.62M |
|
1546
CALL
Unusual Machines
UMAC
$1.19B
| $9.94M | ﹤0.01% |
445,600
+127,800
| +40% | +$2.37M |
|
1547
PUT
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$111M
| $9.91M | ﹤0.01% |
270,200
+69,700
| +35% | +$2.72M |
|
|
1548
PUT
Ionis Pharmaceuticals
IONS
$9.65B
| $9.9M | ﹤0.01% |
124,900
+97,400
| +354% | +$7.33M |
|
1549
CALL
Knight Transportation
KNX
$11.7B
| $9.89M | ﹤0.01% |
127,000
+83,300
| +191% | +$5.77M |
|
|
PPL
1550
CALL
PPL Corp
PPL
$26.4B
| $9.88M | ﹤0.01% |
271,800
-7,500
| -3% | -$277K |
|
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.