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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.46% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Technology | 0.33% |
| 4 | Communication Services | 0.22% |
| 5 | Industrials | 0.16% |
| 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
| $28.2B | 10.27% |
42,382,700
-250,500
| -0.6% | -$161M |
2018 Q4
27 quarters
|
|
|
2
CALL
State Street SPDR S&P 500 ETF Trust
SPY
$833B
| $14B | 5.11% |
21,087,200
-6,480,100
| -24% | -$4.15B |
2018 Q4
27 quarters
|
|
3
PUT
NVIDIA
NVDA
$5.54T
| $11.8B | 4.3% |
63,457,200
+4,707,600
| +8% | +$821M |
2018 Q4
27 quarters
|
|
|
4
CALL
NVIDIA
NVDA
$5.54T
| $10.4B | 3.77% |
55,530,300
-3,591,300
| -6% | -$626M |
2018 Q4
27 quarters
|
|
5
CALL
Tesla
TSLA
$1.51T
| $9.56B | 3.48% |
21,492,900
+9,000
| +0% | +$3.12M |
2018 Q4
27 quarters
|
|
|
6
PUT
Tesla
TSLA
$1.51T
| $8.07B | 2.93% |
18,146,600
+2,204,600
| +14% | +$765M |
2018 Q4
27 quarters
|
|
|
7
PUT
Invesco QQQ Trust
QQQ
$507B
| $7.89B | 2.87% |
13,145,500
+437,200
| +3% | +$250M |
2018 Q4
27 quarters
|
|
|
8
CALL
Invesco QQQ Trust
QQQ
$507B
| $4.91B | 1.79% |
8,179,600
-1,723,800
| -17% | -$987M |
2018 Q4
27 quarters
|
|
9
PUT
iShares S&P 100 ETF
OEF
$20.8B
| $4.66B | 1.69% |
25,549,000
+4,699,400
| +23% | +$1.49B |
2021 Q4
15 quarters
|
|
|
10
CALL
Apple
AAPL
$4.91T
| $4.6B | 1.67% |
18,054,600
+5,905,100
| +49% | +$1.33B |
2018 Q4
27 quarters
|
|
11
CALL
Meta Platforms (Facebook)
META
$1.83T
| $4.48B | 1.63% |
6,100,800
+604,700
| +11% | +$450M |
2018 Q4
27 quarters
|
|
12
CALL
Strategy Inc
MSTR
$61.5B
| $4.21B | 1.53% |
13,067,400
+4,158,100
| +47% | +$1.54B |
2021 Q1
18 quarters
|
|
13
CALL
Microsoft
MSFT
$3.97T
| $4.1B | 1.49% |
7,915,900
+1,168,800
| +17% | +$596M |
2018 Q4
27 quarters
|
|
|
14
PUT
Netflix
NFLX
$293B
| $3.58B | 1.3% |
29,826,000
+578,000
| +2% | +$70.5M |
2018 Q4
27 quarters
|
|
|
15
PUT
Apple
AAPL
$4.91T
| $3.42B | 1.24% |
13,435,200
+3,064,100
| +30% | +$692M |
2018 Q4
27 quarters
|
|
|
16
PUT
Meta Platforms (Facebook)
META
$1.83T
| $3.37B | 1.22% |
4,584,300
+302,000
| +7% | +$225M |
2018 Q4
27 quarters
|
|
|
17
PUT
Strategy Inc
MSTR
$61.5B
| $3.05B | 1.11% |
9,476,600
+2,174,900
| +30% | +$807M |
2021 Q1
18 quarters
|
|
18
CALL
Alphabet (Google) Class A
GOOGL
$4.3T
| $2.66B | 0.97% |
10,954,200
+2,911,700
| +36% | +$610M |
2018 Q4
27 quarters
|
|
19
CALL
Amazon
AMZN
$2.83T
| $2.5B | 0.91% |
11,378,200
+1,105,000
| +11% | +$250M |
2018 Q4
27 quarters
|
|
|
20
PUT
Microsoft
MSFT
$3.97T
| $2.4B | 0.87% |
4,633,100
+107,300
| +2% | +$54.7M |
2018 Q4
27 quarters
|
|
21
CALL
Coinbase
COIN
$47.3B
| $2.39B | 0.87% |
7,067,000
+2,574,300
| +57% | +$873M |
2022 Q2
13 quarters
|
|
|
22
CALL
Netflix
NFLX
$293B
| $2.36B | 0.86% |
19,701,000
+1,545,000
| +9% | +$189M |
2018 Q4
27 quarters
|
|
|
23
CALL
iShares S&P 100 ETF
OEF
$20.8B
| $2.34B | 0.85% |
17,542,100
-4,920,500
| -22% | -$1.56B |
2021 Q4
15 quarters
|
|
24
PUT
Broadcom
AVGO
$1.73T
| $2.34B | 0.85% |
7,088,200
+1,768,400
| +33% | +$543M |
2018 Q4
27 quarters
|
|
25
CALL
UnitedHealth
UNH
$340B
| $2.23B | 0.81% |
6,448,400
+3,492,000
| +118% | +$1.06B |
2019 Q1
26 quarters
|
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago's Q3 2025 filing shows 783 new, 1,843 increased, 923 reduced and 492 closed positions. Its largest new stake was Netflix: 666,120 shares worth $79.9M. The largest sale was Apple, an estimated $167M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 99% a quarter earlier, followed by Consumer Discretionary and Technology.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.