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 | |
|---|---|---|---|---|---|---|
651
PUT
Invesco Aerospace & Defense ETF
PPA
$7.9B
| $44.9M | 0.01% |
219,900
+45,700
| +26% | +$7.83M |
|
652
CALL
State Street SPDR Portfolio Europe ETF
SPEU
$738M
| $44.9M | 0.01% |
653,900
+312,300
| +91% | +$17M |
|
653
CALL
CF Industries
CF
$20.2B
| $44.9M | 0.01% |
414,700
-239,900
| -37% | -$28.3M |
|
654
CALL
Advance Auto Parts
AAP
$2.67B
| $44.7M | 0.01% |
719,100
+147,800
| +26% | +$8.39M |
|
655
PUT
Estee Lauder
EL
$37.6B
| $44.7M | 0.01% |
566,100
+80,200
| +17% | +$6.48M |
|
656
CALL
Linde
LIN
$220B
| $44.6M | 0.01% |
86,000
-15,500
| -15% | -$7.85M |
|
657
PUT
Duolingo
DUOL
$7.23B
| $44.5M | 0.01% |
387,000
-61,500
| -14% | -$6.73M |
|
658
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$245M
| $44.4M | 0.01% |
569,500
-72,500
| -11% | -$3.62M |
|
659
Berkshire Hathaway Class A
BRK.A
$1.08T
| $44.2M | 0.01% |
59
+58
| +5,800% | +$41.8M |
|
660
PUT
Northrop Grumman
NOC
$73.2B
| $44.2M | 0.01% |
86,700
+1,400
| +2% | +$808K |
|
661
CALL
Oscar Health
OSCR
$9.95B
| $44.1M | 0.01% |
1,545,900
+772,100
| +100% | +$16.6M |
|
662
PUT
Cigna
CI
$74.7B
| $44M | 0.01% |
159,600
+9,100
| +6% | +$2.57M |
|
663
CALL
NXP Semiconductors
NXPI
$57.5B
| $44M | 0.01% |
156,500
+79,400
| +103% | +$21.9M |
|
664
CALL
Amplify Online Retail ETF
IBUY
$125M
| $44M | 0.01% |
1,666,900
+240,700
| +17% | +$16.1M |
|
665
CALL
Vicor
VICR
$8.69B
| $43.9M | 0.01% |
115,700
+62,300
| +117% | +$17M |
|
666
CALL
Sterling Infrastructure
STRL
$14.9B
| $43.8M | 0.01% |
52,200
+25,900
| +98% | +$18.2M |
|
667
Freeport-McMoran
FCX
$104B
| $43.7M | 0.01% |
695,515
+283,435
| +69% | +$18.2M |
|
668
CALL
Boston Scientific
BSX
$69.3B
| $43.5M | 0.01% |
1,019,800
+215,600
| +27% | +$11.7M |
|
669
CALL
Dollar General
DG
$29.4B
| $43.4M | 0.01% |
377,400
+58,000
| +18% | +$6.59M |
|
670
CALL
SAP
SAP
$248B
| $43.3M | 0.01% |
281,000
+132,000
| +89% | +$22.5M |
|
671
CALL
AeroVironment
AVAV
$7.35B
| $43.2M | 0.01% |
261,600
+23,700
| +10% | +$4.24M |
|
672
PUT
Dycom Industries
DY
$9.06B
| $43.1M | 0.01% |
85,200
+80,600
| +1,752% | +$35.2M |
|
673
CALL
Enterprise Products Partners
EPD
$84.1B
| $43M | 0.01% |
1,170,300
+311,200
| +36% | +$11.7M |
|
674
PUT
Cboe Global Markets
CBOE
$31.2B
| $42.9M | 0.01% |
176,700
+135,500
| +329% | +$41.5M |
|
675
State Street SPDR S&P Regional Banking ETF
KRE
$4.22B
| $42.6M | 0.01% |
568,491
+353,319
| +164% | +$24.7M |
|
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.