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 | |
|---|---|---|---|---|---|---|
3351
CALL
Manhattan Associates
MANH
$12.5B
| $1.52M | ﹤0.01% |
10,900
-3,100
| -22% | -$427K |
|
3352
Bruker
BRKR
$8.91B
| $1.52M | ﹤0.01% |
+25,179
| New | +$1.18M |
|
3353
CALL
Tandem Diabetes Care
TNDM
$1.38B
| $1.52M | ﹤0.01% |
100,400
+44,500
| +80% | +$777K |
|
3354
PUT
Newell Brands
NWL
$2.6B
| $1.51M | ﹤0.01% |
246,100
-66,600
| -21% | -$282K |
|
|
BETA
3355
PUT
Beta Technologies Inc
BETA
$5.19B
| $1.51M | ﹤0.01% |
90,200
+69,200
| +330% | +$1.15M |
|
3356
CALL
Sibanye-Stillwater
SBSW
$9.05B
| $1.51M | ﹤0.01% |
177,900
-232,500
| -57% | -$2.71M |
|
3357
PUT
DTE Energy
DTE
$28.3B
| $1.51M | ﹤0.01% |
9,900
+5,000
| +102% | +$730K |
|
3358
CALL
Encompass Health
EHC
$12B
| $1.51M | ﹤0.01% |
14,900
+5,900
| +66% | +$611K |
|
|
BRUN
3359
PUT
Boost Run Inc
BRUN
$1.4B
| $1.51M | ﹤0.01% |
+38,800
| New | +$1.2M |
|
3360
PUT
Itron
ITRI
$4.25B
| $1.51M | ﹤0.01% |
17,400
-2,600
| -13% | -$222K |
|
3361
CALL
ArcelorMittal
MT
$59.4B
| $1.51M | ﹤0.01% |
25,000
-38,700
| -61% | -$2.42M |
|
3362
PUT
ScottsMiracle-Gro
SMG
$3.46B
| $1.51M | ﹤0.01% |
22,100
+1,700
| +8% | +$105K |
|
3363
CALL
Palomar
PLMR
$3.59B
| $1.5M | ﹤0.01% |
11,900
+9,200
| +341% | +$1.08M |
|
3364
CALL
Axos Financial
AX
$5.56B
| $1.5M | ﹤0.01% |
15,400
+100
| +0.7% | +$9.01K |
|
3365
PUT
BrightSpring Health Services
BTSG
$12B
| $1.49M | ﹤0.01% |
21,400
+15,900
| +289% | +$883K |
|
3366
CALL
Mattel
MAT
$4.15B
| $1.49M | ﹤0.01% |
107,500
+25,100
| +30% | +$367K |
|
|
LB
3367
PUT
LandBridge Co
LB
$2.46B
| $1.49M | ﹤0.01% |
18,800
+2,500
| +15% | +$172K |
|
|
PPTA
3368
Perpetua Resources
PPTA
$3.14B
| $1.49M | ﹤0.01% |
71,695
+63,772
| +805% | +$1.73M |
|
|
YBIT
3369
CALL
YieldMax Bitcoin Option Income Strategy ETF
YBIT
$46M
| $1.49M | ﹤0.01% |
87,600
+5,600
| +7% | +$127K |
|
3370
CALL
Alkermes
ALKS
$7.73B
| $1.49M | ﹤0.01% |
28,400
+19,700
| +226% | +$769K |
|
3371
CALL
Brighthouse Financial
BHF
$3.08B
| $1.49M | ﹤0.01% |
23,500
-10,300
| -30% | -$641K |
|
3372
PUT
Asana
ASAN
$2.02B
| $1.49M | ﹤0.01% |
212,500
+21,000
| +11% | +$141K |
|
3373
PUT
Essex Property Trust
ESS
$17.9B
| $1.49M | ﹤0.01% |
5,100
+2,400
| +89% | +$645K |
|
3374
CALL
Delek Logistics
DKL
$3.22B
| $1.48M | ﹤0.01% |
+28,800
| New | +$1.46M |
|
3375
PUT
Aaon
AAON
$6.55B
| $1.48M | ﹤0.01% |
11,700
+3,600
| +44% | +$422K |
|
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.