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 |
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 | Held Since | |
|---|---|---|---|---|---|---|---|
376
Super Micro Computer
SMCI
$21.6B
| $97.4M | 0.02% |
3,320,429
+2,594,027
| +357% | +$82.6M |
2025 Q4
2 quarters
|
|
377
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$29.8B
| $97.4M | 0.02% |
525,700
+89,600
| +21% | +$15.6M |
2022 Q3
15 quarters
|
|
378
CALL
Cigna
CI
$81.1B
| $97M | 0.02% |
352,000
+91,400
| +35% | +$25.8M |
2022 Q1
17 quarters
|
|
379
CALL
3M
MMM
$89.5B
| $97M | 0.02% |
598,900
+313,700
| +110% | +$47.5M |
2018 Q4
30 quarters
|
|
380
CALL
ON Semiconductor
ON
$28.1B
| $96.6M | 0.02% |
1,022,300
+702,700
| +220% | +$72M |
2022 Q1
17 quarters
|
|
381
PUT
Analog Devices
ADI
$189B
| $95.7M | 0.02% |
241,000
+125,400
| +108% | +$49.6M |
2022 Q4
14 quarters
|
|
382
PUT
Thermo Fisher Scientific
TMO
$249B
| $95.6M | 0.02% |
190,700
+45,100
| +31% | +$21.7M |
2020 Q4
22 quarters
|
|
383
PUT
Fair Isaac
FICO
$17.6B
| $95.1M | 0.02% |
79,600
+19,400
| +32% | +$21.7M |
2024 Q2
8 quarters
|
|
384
PUT
ARK Innovation ETF
ARKK
$6.17B
| $95M | 0.02% |
1,174,900
+244,500
| +26% | +$18.7M |
2021 Q1
21 quarters
|
|
385
CALL
Amphenol
APH
$183B
| $94.7M | 0.02% |
1,074,400
+257,600
| +32% | +$18.6M |
2023 Q4
10 quarters
|
|
386
PUT
Zscaler
ZS
$41.6B
| $94.5M | 0.02% |
669,200
+162,700
| +32% | +$22.7M |
2020 Q1
25 quarters
|
|
387
CALL
CVS Health
CVS
$120B
| $94.1M | 0.02% |
909,200
-46,100
| -5% | -$4.12M |
2018 Q4
30 quarters
|
|
388
PUT
PepsiCo
PEP
$185B
| $93.9M | 0.02% |
693,400
+145,400
| +27% | +$21.7M |
2018 Q4
30 quarters
|
|
389
CALL
Cipher Digital
CIFR
$3.3B
| $93.7M | 0.02% |
3,825,000
+1,010,000
| +36% | +$21.3M |
2024 Q1
9 quarters
|
|
390
CALL
GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF
COMB
$162M
| $93.6M | 0.02% |
2,941,300
+957,100
| +48% | +$25.1M |
2024 Q1
9 quarters
|
|
391
PUT
Ulta Beauty
ULTA
$26.7B
| $93.6M | 0.02% |
207,500
+64,600
| +45% | +$32.8M |
2018 Q4
30 quarters
|
|
392
CALL
Twilio
TWLO
$40.2B
| $93.4M | 0.02% |
452,700
+205,700
| +83% | +$36.5M |
2018 Q4
30 quarters
|
|
393
CALL
Chipotle Mexican Grill
CMG
$34.8B
| $92.3M | 0.02% |
2,716,100
-263,400
| -9% | -$8.6M |
2018 Q4
30 quarters
|
|
394
CALL
AutoZone
AZO
$51.8B
| $92M | 0.02% |
28,800
+5,600
| +24% | +$18.6M |
2025 Q1
5 quarters
|
|
395
PUT
Albemarle
ALB
$11.1B
| $91.7M | 0.02% |
679,000
-700
| -0.1% | -$123K |
2023 Q2
12 quarters
|
|
396
JPMorgan Chase
JPM
$881B
| $91.5M | 0.02% |
+279,599
| New | +$86.8M |
2026 Q2
0 quarters
|
|
397
CALL
Novo Nordisk
NVO
$172B
| $90.9M | 0.02% |
1,895,100
-191,100
| -9% | -$8.21M |
2023 Q3
11 quarters
|
|
398
Alibaba
BABA
$248B
| $90.3M | 0.02% |
940,367
+600,292
| +177% | +$75.2M |
2025 Q4
2 quarters
|
|
399
CALL
Agnico Eagle Mines
AEM
$88.1B
| $90.2M | 0.02% |
581,600
+115,500
| +25% | +$21.4M |
2018 Q4
30 quarters
|
|
|
KFYP
400
CALL
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $90.1M | 0.02% |
3,666,100
+351,100
| +11% | +$8.63M |
2021 Q4
18 quarters
|
|
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.