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 | |
|---|---|---|---|---|---|---|
1551
PUT
Onto Innovation
ONTO
$13.2B
| $9.88M | ﹤0.01% |
26,100
-1,200
| -4% | -$340K |
|
1552
CALL
Fidelity National Information Services
FIS
$21.6B
| $9.87M | ﹤0.01% |
253,800
+49,700
| +24% | +$2.15M |
|
1553
PUT
Peloton Interactive
PTON
$2.37B
| $9.86M | ﹤0.01% |
1,668,100
+588,200
| +54% | +$3.17M |
|
1554
American International
AIG
$39.8B
| $9.85M | ﹤0.01% |
+132,186
| New | +$10M |
|
1555
Bitdeer Technologies
BTDR
$3.36B
| $9.85M | ﹤0.01% |
620,433
+473,894
| +323% | +$6.8M |
|
|
TE
1556
PUT
T1 Energy
TE
$1.35B
| $9.84M | ﹤0.01% |
1,037,900
+715,300
| +222% | +$5.09M |
|
1557
iShares MSCI Taiwan ETF
EWT
$12.2B
| $9.82M | ﹤0.01% |
+90,437
| New | +$8.46M |
|
1558
PUT
Transocean
RIG
$6.53B
| $9.82M | ﹤0.01% |
2,007,200
+257,800
| +15% | +$1.61M |
|
1559
PUT
Chewy
CHWY
$9.69B
| $9.8M | ﹤0.01% |
498,700
+37,400
| +8% | +$849K |
|
1560
Champion Homes
SKY
$4.76B
| $9.8M | ﹤0.01% |
+111,175
| New | +$8.51M |
|
1561
PUT
WIX.com
WIX
$3.19B
| $9.77M | ﹤0.01% |
215,400
+2,700
| +1% | +$167K |
|
1562
CALL
Boston Properties
BXP
$10.8B
| $9.77M | ﹤0.01% |
147,300
+47,100
| +47% | +$2.82M |
|
1563
CALL
Consolidated Edison
ED
$39.7B
| $9.71M | ﹤0.01% |
87,800
-300
| -0.3% | -$32.6K |
|
1564
Texas Instruments
TXN
$236B
| $9.71M | ﹤0.01% |
+32,581
| New | +$9.04M |
|
1565
PUT
Five Below
FIVE
$13.9B
| $9.71M | ﹤0.01% |
54,000
-139,600
| -72% | -$30.1M |
|
1566
PUT
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $9.66M | ﹤0.01% |
80,300
+43,400
| +118% | +$1.18M |
|
1567
CALL
Icon
ICLR
$12.7B
| $9.66M | ﹤0.01% |
55,600
+27,100
| +95% | +$3.45M |
|
1568
PUT
YPF Sociedad Anonima ADS
YPF
$20.6B
| $9.64M | ﹤0.01% |
212,000
-45,400
| -18% | -$2.13M |
|
1569
PUT
JFrog
FROG
$10.8B
| $9.62M | ﹤0.01% |
105,900
+20,500
| +24% | +$1.33M |
|
1570
CALL
Dominion Energy
D
$57.9B
| $9.62M | ﹤0.01% |
140,900
-121,900
| -46% | -$7.93M |
|
1571
CALL
Nektar Therapeutics
NKTR
$2.53B
| $9.62M | ﹤0.01% |
137,800
+94,700
| +220% | +$6.93M |
|
1572
CALL
Schwab US Broad Market ETF
SCHB
$44.8B
| $9.6M | ﹤0.01% |
301,100
+9,100
| +3% | +$255K |
|
1573
Opendoor
OPEN
$3.06B
| $9.57M | ﹤0.01% |
2,071,950
+1,045,927
| +102% | +$5.01M |
|
1574
PUT
Alamos Gold
AGI
$15.5B
| $9.57M | ﹤0.01% |
315,300
+103,100
| +49% | +$4.18M |
|
1575
PUT
Frontline
FRO
$10.3B
| $9.55M | ﹤0.01% |
274,400
+129,200
| +89% | +$4.75M |
|
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.