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 | |
|---|---|---|---|---|---|---|
1576
Bank of America
BAC
$438B
| $9.53M | ﹤0.01% |
167,250
-208,609
| -56% | -$11.1M |
|
1577
CALL
Papa John's
PZZA
$747M
| $9.52M | ﹤0.01% |
259,000
+195,500
| +308% | +$6.75M |
|
1578
PUT
Blue Owl Capital
OWL
$8.04B
| $9.52M | ﹤0.01% |
1,088,100
-342,500
| -24% | -$3.25M |
|
1579
CALL
Canadian Solar
CSIQ
$898M
| $9.52M | ﹤0.01% |
594,200
+64,400
| +12% | +$1.03M |
|
1580
CALL
Matador Resources
MTDR
$7.32B
| $9.5M | ﹤0.01% |
190,800
-6,300
| -3% | -$358K |
|
1581
PUT
XPeng
XPEV
$10.5B
| $9.49M | ﹤0.01% |
716,600
+105,000
| +17% | +$1.66M |
|
1582
CALL
Guidewire Software
GWRE
$13.5B
| $9.49M | ﹤0.01% |
77,100
+32,100
| +71% | +$4.28M |
|
1583
Autodesk
ADSK
$45.5B
| $9.48M | ﹤0.01% |
48,784
-4,722
| -9% | -$1.08M |
|
1584
PUT
Snap
SNAP
$9.25B
| $9.47M | ﹤0.01% |
2,133,000
+411,800
| +24% | +$2.25M |
|
1585
CALL
Digital Turbine
APPS
$1.3B
| $9.46M | ﹤0.01% |
733,200
+493,300
| +206% | +$2.95M |
|
1586
CALL
Globe Life
GL
$13.4B
| $9.45M | ﹤0.01% |
52,900
-18,500
| -26% | -$2.9M |
|
|
ETOR
1587
CALL
eToro Group
ETOR
$2.58B
| $9.44M | ﹤0.01% |
239,200
-67,300
| -22% | -$2.54M |
|
1588
CALL
American Superconductor
AMSC
$1.43B
| $9.41M | ﹤0.01% |
226,800
+65,900
| +41% | +$2.98M |
|
1589
CALL
Ally Financial
ALLY
$13.3B
| $9.39M | ﹤0.01% |
204,300
-44,600
| -18% | -$1.93M |
|
1590
CALL
Bilibili
BILI
$6.37B
| $9.38M | ﹤0.01% |
550,800
-83,100
| -13% | -$1.68M |
|
1591
PUT
Gartner
IT
$11.8B
| $9.37M | ﹤0.01% |
72,300
+43,400
| +150% | +$6.54M |
|
1592
PUT
Opendoor
OPEN
$3.06B
| $9.37M | ﹤0.01% |
2,028,100
+128,500
| +7% | +$615K |
|
1593
CALL
Jefferies Financial Group
JEF
$12.7B
| $9.34M | ﹤0.01% |
186,800
-169,400
| -48% | -$8.73M |
|
1594
Global X Copper Miners ETF NEW
COPX
$8.21B
| $9.31M | ﹤0.01% |
121,003
+66,265
| +121% | +$5.52M |
|
|
CBRS
1595
Cerebras Systems
CBRS
$49.9B
| $9.29M | ﹤0.01% |
+42,024
| New | +$9.89M |
|
1596
General Mills
GIS
$20.5B
| $9.27M | ﹤0.01% |
266,286
+54,681
| +26% | +$1.89M |
|
1597
PUT
Fidelity Wise Origin Bitcoin Fund
FBTC
$14.8B
| $9.27M | ﹤0.01% |
181,500
+73,200
| +68% | +$4.57M |
|
1598
PUT
Zillow
Z
$7.78B
| $9.2M | ﹤0.01% |
291,800
+124,300
| +74% | +$4.78M |
|
1599
PUT
DexCom
DXCM
$33.2B
| $9.19M | ﹤0.01% |
136,500
-11,000
| -7% | -$733K |
|
1600
PUT
Vail Resorts
MTN
$4.81B
| $9.18M | ﹤0.01% |
67,400
-51,700
| -43% | -$6.73M |
|
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.