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 | Miscellaneous | 98.86% |
| 2 | Technology | 0.32% |
| 3 | Consumer Discretionary | 0.25% |
| 4 | Healthcare | 0.13% |
| 5 | Communication Services | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
1
PUT
State Street SPDR S&P 500 ETF Trust
SPY
$833B
| $26.3B | 11.7% |
42,633,200
-1,949,200
| -4% | -$1.11B |
2018 Q4
26 quarters
|
|
|
2
CALL
State Street SPDR S&P 500 ETF Trust
SPY
$833B
| $17B | 7.56% |
27,567,300
+657,100
| +2% | +$376M |
2018 Q4
26 quarters
|
|
3
CALL
NVIDIA
NVDA
$5.54T
| $9.34B | 4.15% |
59,121,600
-3,664,400
| -6% | -$461M |
2018 Q4
26 quarters
|
|
|
4
PUT
NVIDIA
NVDA
$5.54T
| $9.28B | 4.12% |
58,749,600
-1,054,100
| -2% | -$133M |
2018 Q4
26 quarters
|
|
|
5
PUT
Invesco QQQ Trust
QQQ
$507B
| $7.01B | 3.11% |
12,708,300
+1,162,500
| +10% | +$578M |
2018 Q4
26 quarters
|
|
6
CALL
Tesla
TSLA
$1.51T
| $6.82B | 3.03% |
21,483,900
-3,757,900
| -15% | -$1.13B |
2018 Q4
26 quarters
|
|
|
7
CALL
Invesco QQQ Trust
QQQ
$507B
| $5.46B | 2.43% |
9,903,400
-1,619,900
| -14% | -$806M |
2018 Q4
26 quarters
|
|
|
8
PUT
Tesla
TSLA
$1.51T
| $5.06B | 2.25% |
15,942,000
-480,200
| -3% | -$145M |
2018 Q4
26 quarters
|
|
9
CALL
Meta Platforms (Facebook)
META
$1.83T
| $4.06B | 1.8% |
5,496,100
-361,500
| -6% | -$223M |
2018 Q4
26 quarters
|
|
10
PUT
Netflix
NFLX
$293B
| $3.92B | 1.74% |
29,248,000
+11,590,000
| +66% | +$1.31B |
2018 Q4
26 quarters
|
|
11
CALL
Strategy Inc
MSTR
$61.5B
| $3.6B | 1.6% |
8,909,300
-1,010,100
| -10% | -$368M |
2021 Q1
17 quarters
|
|
12
CALL
Microsoft
MSFT
$3.97T
| $3.36B | 1.49% |
6,747,100
+2,565,500
| +61% | +$1.11B |
2018 Q4
26 quarters
|
|
13
CALL
iShares S&P 100 ETF
OEF
$20.8B
| $3.25B | 1.45% |
22,462,600
+3,300,700
| +17% | +$920M |
2021 Q4
14 quarters
|
|
|
14
PUT
Meta Platforms (Facebook)
META
$1.83T
| $3.16B | 1.4% |
4,282,300
-369,600
| -8% | -$228M |
2018 Q4
26 quarters
|
|
|
15
PUT
iShares S&P 100 ETF
OEF
$20.8B
| $2.99B | 1.33% |
20,849,600
-362,600
| -2% | -$101M |
2021 Q4
14 quarters
|
|
|
16
PUT
Strategy Inc
MSTR
$61.5B
| $2.95B | 1.31% |
7,301,700
-357,000
| -5% | -$130M |
2021 Q1
17 quarters
|
|
|
17
CALL
Apple
AAPL
$4.91T
| $2.49B | 1.11% |
12,149,500
+355,900
| +3% | +$71.9M |
2018 Q4
26 quarters
|
|
|
18
CALL
Netflix
NFLX
$293B
| $2.43B | 1.08% |
18,156,000
+3,477,000
| +24% | +$393M |
2018 Q4
26 quarters
|
|
19
CALL
Amazon
AMZN
$2.83T
| $2.25B | 1% |
10,273,200
+2,373,400
| +30% | +$470M |
2018 Q4
26 quarters
|
|
|
20
PUT
Microsoft
MSFT
$3.97T
| $2.25B | 1% |
4,525,800
+1,499,700
| +50% | +$651M |
2018 Q4
26 quarters
|
|
|
21
PUT
Apple
AAPL
$4.91T
| $2.13B | 0.95% |
10,371,100
+2,162,100
| +26% | +$437M |
2018 Q4
26 quarters
|
|
|
22
PUT
Amazon
AMZN
$2.83T
| $1.7B | 0.75% |
7,740,900
+655,700
| +9% | +$130M |
2018 Q4
26 quarters
|
|
23
CALL
Broadcom
AVGO
$1.73T
| $1.67B | 0.74% |
6,042,500
-466,200
| -7% | -$101M |
2018 Q4
26 quarters
|
|
24
CALL
Coinbase
COIN
$47.3B
| $1.57B | 0.7% |
4,492,700
+562,900
| +14% | +$132M |
2022 Q2
12 quarters
|
|
|
25
PUT
Broadcom
AVGO
$1.73T
| $1.47B | 0.65% |
5,319,800
-427,000
| -7% | -$92.7M |
2018 Q4
26 quarters
|
|
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's Q2 2025 filing shows 615 new, 1,602 increased, 1,040 reduced and 423 closed positions. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M. The largest sale was Invesco QQQ Trust, an estimated $153M.
By sector, the portfolio is most concentrated in Miscellaneous at 99% of assets, down from 99% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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.