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 | |
|---|---|---|---|---|---|---|
1476
PUT
Knight Transportation
KNX
$11.7B
| $11M | ﹤0.01% |
141,200
+61,100
| +76% | +$4.23M |
|
1477
CALL
American Conservative Values ETF
ACVF
$155M
| $11M | ﹤0.01% |
698,100
+15,100
| +2% | +$789K |
|
1478
PUT
Builders FirstSource
BLDR
$7.08B
| $11M | ﹤0.01% |
122,800
+6,300
| +5% | +$503K |
|
|
MDLN
1479
PUT
Medline Inc
MDLN
$32.1B
| $10.9M | ﹤0.01% |
276,900
+252,200
| +1,021% | +$10.2M |
|
1480
Travelers Companies
TRV
$77B
| $10.9M | ﹤0.01% |
+33,046
| New | +$10M |
|
1481
JD.com
JD
$38.2B
| $10.9M | ﹤0.01% |
427,912
-174,921
| -29% | -$5.15M |
|
1482
PUT
Madrigal Pharmaceuticals
MDGL
$12.5B
| $10.9M | ﹤0.01% |
20,300
-2,800
| -12% | -$1.43M |
|
1483
PUT
Redwire
RDW
$2.63B
| $10.8M | ﹤0.01% |
887,000
+618,800
| +231% | +$8.17M |
|
1484
PUT
Alexandria Real Estate Equities
ARE
$9.06B
| $10.8M | ﹤0.01% |
205,100
-5,700
| -3% | -$273K |
|
1485
PUT
Coca-Cola Consolidated
COKE
$12.6B
| $10.8M | ﹤0.01% |
56,700
+39,900
| +238% | +$7.43M |
|
1486
CALL
Unilever
UL
$138B
| $10.8M | ﹤0.01% |
179,500
-37,800
| -17% | -$2.19M |
|
1487
CALL
PVH
PVH
$3.43B
| $10.8M | ﹤0.01% |
144,800
+29,500
| +26% | +$2.53M |
|
|
TBXU
1488
CALL
Direxion Daily Biotech Top 5 Bull 2X ETF
TBXU
$5.55M
| $10.7M | ﹤0.01% |
3,163,500
+2,398,900
| +314% | +$72.3M |
|
1489
PUT
Axsome Therapeutics
AXSM
$10.8B
| $10.7M | ﹤0.01% |
43,700
+27,500
| +170% | +$5.96M |
|
1490
CALL
Shift4
FOUR
$3.63B
| $10.7M | ﹤0.01% |
219,900
-89,200
| -29% | -$3.86M |
|
1491
PUT
NetEase
NTES
$76.4B
| $10.7M | ﹤0.01% |
83,300
-7,200
| -8% | -$850K |
|
1492
PUT
Teva Pharmaceuticals
TEVA
$42.4B
| $10.6M | ﹤0.01% |
313,700
+40,600
| +15% | +$1.35M |
|
1493
CALL
Groupon
GRPN
$767M
| $10.6M | ﹤0.01% |
441,300
+136,600
| +45% | +$2.26M |
|
1494
PUT
MACOM Technology Solutions
MTSI
$20.5B
| $10.6M | ﹤0.01% |
27,900
+21,600
| +343% | +$7.16M |
|
1495
CALL
Zeta Global
ZETA
$7.87B
| $10.6M | ﹤0.01% |
539,000
-109,300
| -17% | -$2.03M |
|
1496
PUT
Schwab US Broad Market ETF
SCHB
$44.8B
| $10.6M | ﹤0.01% |
333,200
+55,500
| +20% | +$1.55M |
|
1497
CVS Health
CVS
$124B
| $10.6M | ﹤0.01% |
102,432
+15,796
| +18% | +$1.41M |
|
1498
Cadence Design Systems
CDNS
$80.6B
| $10.6M | ﹤0.01% |
+28,131
| New | +$9.86M |
|
1499
CALL
Woodward
WWD
$20.4B
| $10.6M | ﹤0.01% |
24,800
+7,600
| +44% | +$2.88M |
|
1500
PUT
Curtiss-Wright
CW
$20.9B
| $10.5M | ﹤0.01% |
13,900
+10,300
| +286% | +$7.55M |
|
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.