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 | |
|---|---|---|---|---|---|---|
2451
PUT
Bit Digital
BTBT
$520M
| $1.04M | ﹤0.01% |
473,400
-14,600
| -3% | -$32.2K |
|
|
XIFR
2452
CALL
XPLR Infrastructure LP
XIFR
$1.09B
| $1.04M | ﹤0.01% |
126,400
+54,100
| +75% | +$470K |
|
2453
PUT
SM Energy
SM
$7.71B
| $1.04M | ﹤0.01% |
41,900
+14,800
| +55% | +$358K |
|
|
2454
Bit Digital
BTBT
$520M
| $1.03M | ﹤0.01% |
471,469
+28,007
| +6% | +$61.8K |
|
|
MOMO
2455
CALL
Hello Group
MOMO
$850M
| $1.03M | ﹤0.01% |
122,200
+76,900
| +170% | +$503K |
|
2456
CALL
Vanguard World Funds Extended Duration ETF
EDV
$3.49B
| $1.03M | ﹤0.01% |
15,300
-5,300
| -26% | -$350K |
|
2457
PUT
Petrobras
PBR
$115B
| $1.03M | ﹤0.01% |
82,300
+50,100
| +156% | +$600K |
|
2458
CALL
Corebridge Financial
CRBG
$15.3B
| $1.03M | ﹤0.01% |
29,000
-6,100
| -17% | -$190K |
|
|
ACLX
2459
CALL
DELISTED
Arcellx
ACLX
| $1.03M | ﹤0.01% |
+15,600
| New | +$971K |
|
2460
PUT
Franklin Resources
BEN
$17.2B
| $1.03M | ﹤0.01% |
43,000
-7,000
| -14% | -$144K |
|
2461
Robert Half
RHI
$4.48B
| $1.02M | ﹤0.01% |
+24,923
| New | +$1.14M |
|
|
NGD
2462
CALL
DELISTED
New Gold Inc
NGD
| $1.02M | ﹤0.01% |
206,100
+126,000
| +157% | +$518K |
|
2463
Telephone and Data Systems
TDS
$4.03B
| $1.02M | ﹤0.01% |
+28,660
| New | +$1.01M |
|
|
TUZ
2464
CALL
DELISTED
PIMCO 1-3 Year U.S. Treasury Index Exchange-Traded Fund
TUZ
| $1.02M | ﹤0.01% |
15,200
+3,500
| +30% | +$235K |
|
|
CEP
2465
DELISTED
Cantor Equity Partners
CEP
| $1.02M | ﹤0.01% |
+36,624
| New | +$1.12M |
|
2466
PUT
Clover Health Investments
CLOV
$2.38B
| $1.02M | ﹤0.01% |
364,700
+137,800
| +61% | +$453K |
|
2467
PUT
RUM Group Inc
RUM
$3.74B
| $1.02M | ﹤0.01% |
113,100
+71,200
| +170% | +$609K |
|
2468
Global X Defense Tech ETF
SHLD
$7.76B
| $1.02M | ﹤0.01% |
+16,852
| New | +$906K |
|
2469
ProShares UltraPro Short Russell2000
SRTY
$66.3M
| $1.01M | ﹤0.01% |
14,814
+8,381
| +130% | +$745K |
|
2470
CALL
ICICI Bank
IBN
$106B
| $1.01M | ﹤0.01% |
30,100
-11,800
| -28% | -$390K |
|
2471
Direxion Daily Semiconductor Bear 3X ETF
SOXS
$1.38B
| $1.01M | ﹤0.01% |
641
+500
| +355% | +$1.7M |
|
2472
CALL
TransUnion
TRU
$15.5B
| $1.01M | ﹤0.01% |
11,500
-9,600
| -45% | -$801K |
|
|
CWAN
2473
CALL
DELISTED
Clearwater Analytics
CWAN
| $1.01M | ﹤0.01% |
+46,100
| New | +$1.06M |
|
|
QLTB
2474
CALL
DELISTED
ISHARES BAA BA RATED CORP BOND FUND
QLTB
| $1.01M | ﹤0.01% |
12,100
-1,100
| -8% | -$91.8K |
|
2475
PUT
Brookfield Asset Management
BAM
$89.2B
| $1.01M | ﹤0.01% |
+18,200
| New | +$977K |
|
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.