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 | |
|---|---|---|---|---|---|---|
1351
CALL
Moody's
MCO
$85.5B
| $12.9M | ﹤0.01% |
28,400
+8,200
| +41% | +$3.68M |
|
1352
CALL
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$111M
| $12.9M | ﹤0.01% |
350,600
-262,200
| -43% | -$10.2M |
|
1353
PUT
International Paper
IP
$19.7B
| $12.8M | ﹤0.01% |
337,100
+98,400
| +41% | +$3.37M |
|
1354
CALL
Verisk Analytics
VRSK
$24.2B
| $12.8M | ﹤0.01% |
71,400
+7,900
| +12% | +$1.39M |
|
|
BULL
1355
CALL
Webull Corp
BULL
$5.26B
| $12.8M | ﹤0.01% |
1,962,800
+394,800
| +25% | +$2.56M |
|
1356
CALL
PACCAR
PCAR
$65.6B
| $12.8M | ﹤0.01% |
106,500
+21,400
| +25% | +$2.53M |
|
1357
CALL
NuScale Power
SMR
$3.98B
| $12.8M | ﹤0.01% |
1,275,200
+71,500
| +6% | +$807K |
|
1358
CALL
Harrow
HROW
$1.44B
| $12.8M | ﹤0.01% |
300,600
+98,700
| +49% | +$3.67M |
|
1359
CALL
CoreCivic
CXW
$3.43B
| $12.8M | ﹤0.01% |
420,200
+359,500
| +592% | +$8.15M |
|
1360
CALL
Calumet Specialty Products
CLMT
$4.67B
| $12.8M | ﹤0.01% |
354,100
-4,400
| -1% | -$148K |
|
1361
CALL
iShares MSCI USA Momentum Factor ETF
MTUM
$24.7B
| $12.8M | ﹤0.01% |
37,200
+27,900
| +300% | +$8.33M |
|
1362
CALL
Lucid Motors
LCID
$1.84B
| $12.8M | ﹤0.01% |
1,906,300
+514,400
| +37% | +$3.32M |
|
1363
PUT
Paychex
PAYX
$43.3B
| $12.7M | ﹤0.01% |
129,600
+28,800
| +29% | +$2.73M |
|
1364
CALL
APA Corp
APA
$15B
| $12.7M | ﹤0.01% |
391,100
+58,600
| +18% | +$2.2M |
|
1365
PUT
SL Green Realty
SLG
$3.94B
| $12.7M | ﹤0.01% |
245,200
+79,700
| +48% | +$3.56M |
|
|
FISV
1366
Fiserv Inc
FISV
$28.2B
| $12.7M | ﹤0.01% |
258,549
+174,081
| +206% | +$9.73M |
|
1367
CALL
DexCom
DXCM
$33.2B
| $12.7M | ﹤0.01% |
188,200
-14,000
| -7% | -$933K |
|
1368
CALL
Lumen
LUMN
$6.98B
| $12.7M | ﹤0.01% |
1,650,200
+607,600
| +58% | +$5.33M |
|
1369
PUT
Toronto Dominion Bank
TD
$199B
| $12.7M | ﹤0.01% |
104,200
+41,200
| +65% | +$4.51M |
|
1370
PUT
AB InBev
BUD
$158B
| $12.6M | ﹤0.01% |
153,300
-47,700
| -24% | -$3.75M |
|
1371
PUT
AerCap
AER
$22.9B
| $12.6M | ﹤0.01% |
86,100
+40,600
| +89% | +$5.77M |
|
1372
CALL
Trump Media & Technology Group
DJT
$2.51B
| $12.5M | ﹤0.01% |
1,620,800
+434,600
| +37% | +$3.82M |
|
1373
CALL
State Street Communication Services Select Sector SPDR ETF
XLC
$22.4B
| $12.5M | ﹤0.01% |
116,900
-101,700
| -47% | -$11.6M |
|
1374
CALL
Cytokinetics
CYTK
$10.1B
| $12.5M | ﹤0.01% |
147,000
+64,700
| +79% | +$4.65M |
|
1375
CALL
BioNTech
BNTX
$26.1B
| $12.5M | ﹤0.01% |
134,400
-18,600
| -12% | -$1.75M |
|
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.