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 |
iShares Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
TSMC
TSM
|
+$65.3M |
| 5 |
SPYM
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.32% |
| 2 | Consumer Discretionary | 0.25% |
| 3 | Healthcare | 0.13% |
| 4 | Communication Services | 0.1% |
| 5 | Financials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2351
PUT
abrdn Physical Silver Shares ETF
SIVR
$4.47B
| $1.21M | ﹤0.01% |
+35,300
| New | +$1.13M |
|
2352
PUT
Gogo Inc
GOGO
$383M
| $1.21M | ﹤0.01% |
82,700
-24,500
| -23% | -$249K |
|
2353
State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF
SPYX
$2.89B
| $1.21M | ﹤0.01% |
23,830
-8,418
| -26% | -$395K |
|
2354
CALL
Silicon Motion
SIMO
$8.18B
| $1.21M | ﹤0.01% |
16,100
+2,400
| +18% | +$136K |
|
2355
PUT
AGNC Investment
AGNC
$12.9B
| $1.21M | ﹤0.01% |
131,600
-239,900
| -65% | -$2.15M |
|
2356
CALL
Genius Sports
GENI
$2.12B
| $1.2M | ﹤0.01% |
115,700
+50,600
| +78% | +$506K |
|
2357
PUT
Modine Manufacturing
MOD
$10.6B
| $1.2M | ﹤0.01% |
12,200
-6,800
| -36% | -$607K |
|
2358
CALL
Omnicom Group
OMC
$23.5B
| $1.2M | ﹤0.01% |
+16,700
| New | +$1.23M |
|
|
NNE
2359
Nano Nuclear Energy
NNE
$1.1B
| $1.2M | ﹤0.01% |
34,757
+10,601
| +44% | +$292K |
|
2360
CALL
Array Technologies
ARRY
$799M
| $1.19M | ﹤0.01% |
202,400
+36,300
| +22% | +$220K |
|
2361
Upwork
UPWK
$1.05B
| $1.19M | ﹤0.01% |
+88,815
| New | +$1.27M |
|
2362
CALL
Commercial Metals
CMC
$7.98B
| $1.19M | ﹤0.01% |
24,400
-4,600
| -16% | -$213K |
|
2363
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
| $1.19M | ﹤0.01% |
+10,009
| New | +$1.18M |
|
2364
PUT
Aramark
ARMK
$16.1B
| $1.19M | ﹤0.01% |
28,400
+9,500
| +50% | +$353K |
|
2365
CALL
Impinj
PI
$5.49B
| $1.19M | ﹤0.01% |
10,700
-7,800
| -42% | -$775K |
|
2366
CALL
SM Energy
SM
$7.71B
| $1.19M | ﹤0.01% |
48,000
+3,100
| +7% | +$75.1K |
|
2367
CALL
Knight Transportation
KNX
$11.6B
| $1.19M | ﹤0.01% |
26,800
-23,600
| -47% | -$1M |
|
2368
PUT
Sanofi
SNY
$105B
| $1.18M | ﹤0.01% |
24,500
+9,000
| +58% | +$460K |
|
2369
Stellantis
STLA
$20.2B
| $1.18M | ﹤0.01% |
117,980
+65,841
| +126% | +$649K |
|
2370
Harrow
HROW
$1.48B
| $1.18M | ﹤0.01% |
38,742
+1,219
| +3% | +$32.8K |
|
2371
CALL
Invesco
IVZ
$13.9B
| $1.18M | ﹤0.01% |
75,000
+5,000
| +7% | +$71.8K |
|
2372
CALL
Fastly Inc
FSLY
$4.78B
| $1.18M | ﹤0.01% |
166,900
+38,400
| +30% | +$257K |
|
2373
PUT
LifeMD
LFMD
$159M
| $1.18M | ﹤0.01% |
86,300
-32,700
| -27% | -$309K |
|
2374
PUT
Fiverr
FVRR
$311M
| $1.17M | ﹤0.01% |
40,000
-11,200
| -22% | -$322K |
|
2375
PUT
Aehr Test Systems
AEHR
$4.02B
| $1.17M | ﹤0.01% |
90,600
-19,700
| -18% | -$188K |
|
Similar funds
IMC Chicago's Q2 2025 Portfolio in Review
As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
IMC Chicago deployed $13.1B of net new capital in Q2 2025, opening 615 new positions and adding to 1,602 existing holdings. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
By sector, the portfolio is most concentrated in Technology at 0.32% of assets, up from 0.28% a quarter earlier, followed by Consumer Discretionary and Healthcare.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $153M trimmed.
- IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
- IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
- IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
- IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
- IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
- IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
- IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.
Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.