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 | |
|---|---|---|---|---|---|---|---|
451
CALL
Amgen
AMGN
$237B
| $74.3M | 0.02% |
205,100
+24,100
| +13% | +$8.25M |
2018 Q4
30 quarters
|
|
452
CALL
State Street Industrial Select Sector SPDR ETF
XLI
$29.8B
| $74.1M | 0.02% |
399,800
+7,600
| +2% | +$1.32M |
2022 Q3
15 quarters
|
|
453
PUT
CVS Health
CVS
$120B
| $73.9M | 0.02% |
714,300
+54,800
| +8% | +$4.89M |
2018 Q4
30 quarters
|
|
454
CALL
Kimberly-Clark
KMB
$36.6B
| $73.9M | 0.02% |
673,100
+405,600
| +152% | +$40.2M |
2023 Q1
13 quarters
|
|
455
Bloom Energy
BE
$56.9B
| $73.8M | 0.02% |
243,712
+157,345
| +182% | +$40.3M |
2026 Q1
1 quarter
|
|
456
CALL
Pfizer
PFE
$171B
| $73.6M | 0.02% |
3,054,600
+1,069,400
| +54% | +$28M |
2021 Q1
21 quarters
|
|
457
CALL
Roblox
RBLX
$37.8B
| $73.3M | 0.02% |
1,347,100
+151,600
| +13% | +$7.54M |
2021 Q2
20 quarters
|
|
458
PUT
Novo Nordisk
NVO
$172B
| $72.8M | 0.02% |
1,518,300
-336,100
| -18% | -$14.4M |
2023 Q3
11 quarters
|
|
459
PUT
Marathon Digital Holdings
MARA
$2.71B
| $72.7M | 0.02% |
5,234,000
+129,000
| +3% | +$1.61M |
2022 Q1
17 quarters
|
|
460
PUT
DigitalOcean
DOCN
$11B
| $72.6M | 0.02% |
462,400
+72,700
| +19% | +$9.8M |
2024 Q1
9 quarters
|
|
461
CALL
AT&T
T
$141B
| $72.6M | 0.02% |
3,506,600
+433,900
| +14% | +$10.8M |
2018 Q4
30 quarters
|
|
462
PUT
Carnival Corporation Ltd
CCL
$35.1B
| $72.5M | 0.02% |
2,538,000
-4,900
| -0.2% | -$134K |
2018 Q4
30 quarters
|
|
463
CALL
Applied Digital
APLD
$5.52B
| $72.3M | 0.02% |
1,938,800
-279,000
| -13% | -$10.8M |
2024 Q1
9 quarters
|
|
464
CALL
KKR & Co
KKR
$82B
| $72.1M | 0.02% |
786,000
+180,700
| +30% | +$17.5M |
2023 Q1
13 quarters
|
|
465
PUT
Delta Air Lines
DAL
$50.5B
| $72.1M | 0.02% |
770,000
-280,900
| -27% | -$21.2M |
2018 Q4
30 quarters
|
|
466
CALL
Oneok
OKE
$60.4B
| $72.1M | 0.02% |
828,800
+33,900
| +4% | +$2.99M |
2024 Q1
9 quarters
|
|
467
CALL
ProShares Ultra S&P500
SSO
$8.77B
| $71.9M | 0.02% |
835,700
+6,900
| +0.8% | +$442K |
2022 Q4
14 quarters
|
|
468
PUT
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$22.1B
| $71.7M | 0.02% |
611,100
-34,000
| -5% | -$3.97M |
2018 Q4
30 quarters
|
|
469
CALL
Capital One
COF
$124B
| $71.6M | 0.02% |
357,000
-84,400
| -19% | -$16.1M |
2021 Q3
19 quarters
|
|
470
Sprott Physical Gold and Silver Trust
CEF
$6.78B
| $71.6M | 0.02% |
1,779,571
-1,685,344
| -49% | -$78.7M |
2026 Q1
1 quarter
|
|
471
PUT
Regeneron Pharmaceuticals
REGN
$82.9B
| $71.5M | 0.02% |
114,700
+16,100
| +16% | +$11M |
2022 Q3
15 quarters
|
|
472
CALL
Rubrik
RBRK
$26.7B
| $71M | 0.02% |
885,000
+411,700
| +87% | +$25.9M |
2024 Q2
8 quarters
|
|
473
PUT
Expand Energy Corp
EXE
$21.6B
| $70.8M | 0.02% |
776,800
+108,100
| +16% | +$10.3M |
2024 Q4
6 quarters
|
|
474
CALL
MP Materials
MP
$6.82B
| $70.7M | 0.02% |
1,263,000
+195,000
| +18% | +$11.9M |
2023 Q3
11 quarters
|
|
475
CALL
Akamai
AKAM
$13.4B
| $70.7M | 0.02% |
597,700
+398,100
| +199% | +$49.6M |
2023 Q4
10 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.