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 | |
|---|---|---|---|---|---|---|
|
SEI
1226
CALL
Solaris Energy Infrastructure
SEI
$3.58B
| $15.9M | ﹤0.01% |
197,700
+74,700
| +61% | +$5.34M |
|
1227
PUT
NuScale Power
SMR
$3.88B
| $15.9M | ﹤0.01% |
1,585,100
+561,000
| +55% | +$6.33M |
|
1228
PUT
Kratos Defense & Security Solutions
KTOS
$8.95B
| $15.9M | ﹤0.01% |
318,300
+78,200
| +33% | +$4.73M |
|
|
HNGE
1229
CALL
Hinge Health
HNGE
$7.41B
| $15.8M | ﹤0.01% |
190,500
+103,600
| +119% | +$5.62M |
|
|
SGI
1230
CALL
Somnigroup International
SGI
$14.8B
| $15.8M | ﹤0.01% |
201,200
+149,200
| +287% | +$10.9M |
|
1231
Blackstone
BX
$103B
| $15.8M | ﹤0.01% |
133,960
+28,651
| +27% | +$3.44M |
|
1232
PUT
Lyft
LYFT
$6.46B
| $15.7M | ﹤0.01% |
1,077,800
+64,600
| +6% | +$903K |
|
1233
PUT
Oneok
OKE
$59.9B
| $15.7M | ﹤0.01% |
180,800
-8,600
| -5% | -$758K |
|
1234
CALL
Liquidia Corp
LQDA
$6.12B
| $15.7M | ﹤0.01% |
196,800
+86,200
| +78% | +$4.62M |
|
1235
PUT
Toll Brothers
TOL
$13.1B
| $15.7M | ﹤0.01% |
95,200
-1,500
| -2% | -$213K |
|
1236
PUT
Southern Copper
SCCO
$169B
| $15.6M | ﹤0.01% |
90,473
+27,102
| +43% | +$4.87M |
|
1237
Fabrinet
FN
$14.4B
| $15.5M | ﹤0.01% |
+27,641
| New | +$17.8M |
|
1238
CALL
Kenvue
KVUE
$36.1B
| $15.5M | ﹤0.01% |
812,000
-150,400
| -16% | -$2.65M |
|
1239
PUT
Nordson
NDSN
$17.7B
| $15.5M | ﹤0.01% |
+51,400
| New | +$14.6M |
|
|
DQ
1240
PUT
Daqo New Energy
DQ
$843M
| $15.5M | ﹤0.01% |
1,156,700
+1,046,700
| +952% | +$19M |
|
1241
CALL
WIX.com
WIX
$3.2B
| $15.5M | ﹤0.01% |
340,700
+45,500
| +15% | +$2.81M |
|
1242
PUT
Amplify Online Retail ETF
IBUY
$126M
| $15.5M | ﹤0.01% |
579,100
-18,800
| -3% | -$1.25M |
|
1243
PUT
Ambarella
AMBA
$2.79B
| $15.5M | ﹤0.01% |
180,100
+116,800
| +185% | +$8.04M |
|
1244
CALL
BILL Holdings
BILL
$4.18B
| $15.5M | ﹤0.01% |
427,300
+109,800
| +35% | +$4.04M |
|
1245
PUT
Air Products & Chemicals
APD
$67.1B
| $15.5M | ﹤0.01% |
52,700
+7,700
| +17% | +$2.24M |
|
1246
Alaska Air
ALK
$4.72B
| $15.4M | ﹤0.01% |
+295,972
| New | +$12.6M |
|
1247
CALL
Ascendis Pharma A/S
ASND
$17.6B
| $15.4M | ﹤0.01% |
57,700
+10,500
| +22% | +$2.45M |
|
1248
CALL
J.M. Smucker
SJM
$13.5B
| $15.3M | ﹤0.01% |
136,300
+41,500
| +44% | +$4.23M |
|
1249
CALL
Ametek
AME
$54.3B
| $15.3M | ﹤0.01% |
63,200
+26,300
| +71% | +$6.06M |
|
1250
PUT
Insmed
INSM
$27.5B
| $15.3M | ﹤0.01% |
143,400
+120,800
| +535% | +$14.6M |
|
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.