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 | |
|---|---|---|---|---|---|---|
|
AXON
301
CALL
Axon Enterprise
AXON
$41.9B
| $138M | 0.03% |
246,100
+86,800
| +54% | +$36.3M |
|
302
CALL
Zscaler
ZS
$27.5B
| $136M | 0.03% |
965,100
+426,800
| +79% | +$59.5M |
|
|
OKLO
303
CALL
Oklo
OKLO
$7.68B
| $136M | 0.03% |
2,597,700
+494,900
| +24% | +$30.9M |
|
304
PUT
Verizon
VZ
$208B
| $136M | 0.03% |
3,201,800
+1,706,500
| +114% | +$80.1M |
|
305
PUT
Newmont
NEM
$135B
| $135M | 0.03% |
1,444,800
+207,700
| +17% | +$22.6M |
|
306
PUT
United Rentals
URI
$62.9B
| $133M | 0.03% |
117,500
+14,600
| +14% | +$13.9M |
|
307
PUT
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$248M
| $133M | 0.03% |
3,145,500
+91,700
| +3% | +$3.36M |
|
308
PUT
Target
TGT
$74.7B
| $132M | 0.03% |
1,008,100
-85,100
| -8% | -$10.8M |
|
309
CALL
Microchip Technology
MCHP
$40.3B
| $131M | 0.03% |
1,434,300
+830,800
| +138% | +$74.1M |
|
|
310
CALL
Verizon
VZ
$208B
| $130M | 0.03% |
3,066,200
+876,500
| +40% | +$41.1M |
|
311
CALL
Constellation Energy
CEG
$106B
| $130M | 0.03% |
522,500
+174,200
| +50% | +$49.1M |
|
312
CALL
Wynn Resorts
WYNN
$9.43B
| $130M | 0.03% |
1,336,100
-294,400
| -18% | -$30.4M |
|
313
CALL
Delta Air Lines
DAL
$52.7B
| $129M | 0.03% |
1,378,400
-1,127,500
| -45% | -$85.1M |
|
314
PUT
Celestica
CLS
$39.4B
| $128M | 0.03% |
350,700
-202,800
| -37% | -$76.1M |
|
315
PUT
Baidu
BIDU
$33.7B
| $127M | 0.03% |
1,112,600
+408,200
| +58% | +$50.6M |
|
316
CALL
Freeport-McMoran
FCX
$104B
| $125M | 0.03% |
1,993,100
+794,600
| +66% | +$51.1M |
|
317
CALL
Eaton
ETN
$160B
| $125M | 0.03% |
293,300
-850,000
| -74% | -$343M |
|
318
PUT
Okta
OKTA
$29.8B
| $125M | 0.03% |
914,200
+123,400
| +16% | +$11.6M |
|
319
CALL
Tower Semiconductor
TSEM
$25.1B
| $124M | 0.03% |
477,400
-17,500
| -4% | -$4.19M |
|
320
CALL
Nokia
NOK
$56.2B
| $124M | 0.03% |
9,342,700
+8,306,300
| +801% | +$107M |
|
321
CALL
Merck
MRK
$371B
| $124M | 0.03% |
961,100
+49,900
| +5% | +$5.84M |
|
|
322
PUT
Eaton
ETN
$160B
| $123M | 0.03% |
289,200
-291,300
| -50% | -$117M |
|
323
PUT
Synopsys
SNPS
$75.5B
| $123M | 0.03% |
275,900
+13,700
| +5% | +$6.44M |
|
324
CALL
Analog Devices
ADI
$176B
| $122M | 0.03% |
307,700
+130,800
| +74% | +$51.8M |
|
325
CALL
FedEx
FDX
$76.3B
| $122M | 0.03% |
389,900
-18,600
| -5% | -$6.76M |
|
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.