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 |
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 | |
|---|---|---|---|---|---|---|---|
251
CALL
Constellation Energy
CEG
$106B
| $91.4M | 0.04% |
283,100
+47,400
| +20% | +$12.5M |
2024 Q2
4 quarters
|
|
252
CALL
SoFi Technologies
SOFI
$20.4B
| $91M | 0.04% |
4,994,900
+96,400
| +2% | +$1.27M |
2022 Q2
12 quarters
|
|
253
PUT
Hims & Hers Health
HIMS
$7.21B
| $90.9M | 0.04% |
1,824,100
+924,500
| +103% | +$41.8M |
2024 Q1
5 quarters
|
|
254
Palantir
PLTR
$502B
| $90.6M | 0.04% |
+664,341
| New | +$77.9M |
2025 Q2
0 quarters
|
|
255
CALL
United States Oil Fund
USO
$1.68B
| $90.5M | 0.04% |
1,237,900
+509,500
| +70% | +$35.6M |
2018 Q4
26 quarters
|
|
|
256
UnitedHealth
UNH
$340B
| $89.7M | 0.04% |
+287,459
| New | +$110M |
2025 Q2
0 quarters
|
|
257
CALL
HCA Healthcare
HCA
$97.7B
| $89.2M | 0.04% |
232,900
+149,000
| +178% | +$53.7M |
2022 Q3
11 quarters
|
|
258
CALL
Cloudflare
NET
$129B
| $89.2M | 0.04% |
455,400
+33,600
| +8% | +$4.88M |
2020 Q3
19 quarters
|
|
259
CALL
Philip Morris
PM
$314B
| $87.9M | 0.04% |
482,500
+124,200
| +35% | +$21.3M |
2022 Q3
11 quarters
|
|
260
PUT
Humana
HUM
$51.9B
| $87.8M | 0.04% |
359,300
+133,100
| +59% | +$33.2M |
2022 Q3
11 quarters
|
|
261
PUT
Arista Networks
ANET
$273B
| $87.4M | 0.04% |
854,700
-34,100
| -4% | -$2.95M |
2022 Q3
11 quarters
|
|
262
PUT
Charles Schwab
SCHW
$167B
| $87.3M | 0.04% |
956,900
+66,600
| +7% | +$5.58M |
2020 Q4
18 quarters
|
|
263
PUT
Datadog
DDOG
$105B
| $87M | 0.04% |
647,700
+126,800
| +24% | +$14M |
2020 Q1
21 quarters
|
|
264
CALL
Airbnb
ABNB
$97.8B
| $86.9M | 0.04% |
657,000
+95,400
| +17% | +$12.1M |
2020 Q4
18 quarters
|
|
265
CALL
United Rentals
URI
$65.8B
| $86.6M | 0.04% |
115,000
+15,900
| +16% | +$10.6M |
2022 Q4
10 quarters
|
|
266
CALL
Accenture
ACN
$128B
| $86.2M | 0.04% |
288,300
-105,700
| -27% | -$32.2M |
2018 Q4
26 quarters
|
|
267
PUT
Sea Limited
SE
$58.3B
| $86.1M | 0.04% |
538,200
+120,400
| +29% | +$17.4M |
2020 Q1
21 quarters
|
|
268
PUT
Baidu
BIDU
$29B
| $85.5M | 0.04% |
997,200
-112,700
| -10% | -$9.72M |
2018 Q4
26 quarters
|
|
269
Meta Platforms (Facebook)
META
$1.83T
| $85.2M | 0.04% |
+115,404
| New | +$71.3M |
2025 Q2
0 quarters
|
|
270
CALL
Upstart Holdings
UPST
$2.35B
| $84.8M | 0.04% |
1,311,000
-43,200
| -3% | -$2.12M |
2021 Q2
16 quarters
|
|
271
CALL
CVS Health
CVS
$110B
| $84.6M | 0.04% |
1,226,700
-335,800
| -21% | -$22M |
2018 Q4
26 quarters
|
|
272
CALL
Trade Desk
TTD
$5.71B
| $84.6M | 0.04% |
1,175,000
-186,200
| -14% | -$11.9M |
2019 Q3
23 quarters
|
|
273
CALL
Wynn Resorts
WYNN
$7.74B
| $84M | 0.04% |
896,700
+371,600
| +71% | +$31.5M |
2018 Q4
26 quarters
|
|
274
CALL
RH
RH
$2.21B
| $83.8M | 0.04% |
443,600
+131,500
| +42% | +$24.4M |
2019 Q3
23 quarters
|
|
275
PUT
T-Mobile US
TMUS
$159B
| $83.1M | 0.04% |
348,900
+118,600
| +51% | +$29M |
2022 Q4
10 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.