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 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
201
CALL
AbbVie
ABBV
$511B
| $238M | 0.06% |
946,400
+570,800
| +152% | +$123M |
2018 Q4
30 quarters
|
|
202
PUT
Home Depot
HD
$314B
| $238M | 0.06% |
674,500
+106,100
| +19% | +$34.5M |
2018 Q4
30 quarters
|
|
203
CALL
State Street Technology Select Sector SPDR ETF
XLK
$122B
| $233M | 0.06% |
1,222,600
+302,200
| +33% | +$51.6M |
2018 Q4
30 quarters
|
|
204
CALL
Uber
UBER
$141B
| $233M | 0.06% |
3,224,500
+577,100
| +22% | +$42.3M |
2019 Q2
28 quarters
|
|
205
PUT
Carvana
CVNA
$66.3B
| $232M | 0.06% |
3,525,000
-1,625,500
| -32% | -$115M |
2020 Q3
23 quarters
|
|
206
CALL
Baidu
BIDU
$27.4B
| $230M | 0.05% |
2,012,900
+422,400
| +27% | +$52.3M |
2018 Q4
30 quarters
|
|
207
CALL
PayPal
PYPL
$48.9B
| $230M | 0.05% |
5,327,200
-1,278,800
| -19% | -$58.2M |
2018 Q4
30 quarters
|
|
208
PUT
Shopify
SHOP
$223B
| $230M | 0.05% |
2,014,000
-372,800
| -16% | -$42.5M |
2019 Q3
27 quarters
|
|
209
PUT
Ciena
CIEN
$48.5B
| $229M | 0.05% |
466,100
+190,800
| +69% | +$97.3M |
2018 Q4
30 quarters
|
|
|
210
PUT
Uber
UBER
$141B
| $228M | 0.05% |
3,165,600
+797,000
| +34% | +$58.4M |
2019 Q2
28 quarters
|
|
211
CALL
Walt Disney
DIS
$193B
| $228M | 0.05% |
2,371,600
-33,800
| -1% | -$3.45M |
2018 Q4
30 quarters
|
|
212
Meta Platforms (Facebook)
META
$1.77T
| $228M | 0.05% |
404,082
+177,974
| +79% | +$109M |
2025 Q2
4 quarters
|
|
213
CALL
McDonald's
MCD
$174B
| $225M | 0.05% |
833,900
+158,800
| +24% | +$45.5M |
2018 Q4
30 quarters
|
|
214
CALL
Cloudflare
NET
$104B
| $223M | 0.05% |
908,700
+288,700
| +47% | +$63.2M |
2020 Q3
23 quarters
|
|
215
CALL
Iris Energy
IREN
$10.5B
| $222M | 0.05% |
4,847,800
-185,200
| -4% | -$9.6M |
2024 Q1
9 quarters
|
|
216
PUT
AST SpaceMobile
ASTS
$12.3B
| $218M | 0.05% |
2,455,400
+1,044,200
| +74% | +$91.1M |
2024 Q2
8 quarters
|
|
217
CALL
Mastercard
MA
$543B
| $218M | 0.05% |
424,000
-64,000
| -13% | -$31.9M |
2018 Q4
30 quarters
|
|
218
CALL
Intuit
INTU
$89.6B
| $217M | 0.05% |
830,700
+393,100
| +90% | +$137M |
2019 Q3
27 quarters
|
|
219
PUT
ExxonMobil
XOM
$731B
| $217M | 0.05% |
1,583,600
-131,700
| -8% | -$19.7M |
2018 Q4
30 quarters
|
|
220
CALL
Circle Internet Group
CRCL
$21.8B
| $208M | 0.05% |
3,324,300
-556,100
| -14% | -$54.1M |
2025 Q4
2 quarters
|
|
221
CALL
Humana
HUM
$51.3B
| $208M | 0.05% |
522,900
+22,500
| +4% | +$6.41M |
2022 Q3
15 quarters
|
|
222
PUT
Roundhill Daily 2X Long Magnificent Seven ETF
MAGX
$66.9M
| $208M | 0.05% |
+2,810,800
| New | +$154M |
2026 Q2
0 quarters
|
|
223
CALL
Texas Instruments
TXN
$254B
| $206M | 0.05% |
690,100
+51,100
| +8% | +$14.2M |
2018 Q4
30 quarters
|
|
224
PUT
Take-Two Interactive
TTWO
$38.6B
| $206M | 0.05% |
822,700
+524,200
| +176% | +$116M |
2020 Q2
24 quarters
|
|
225
PUT
Morgan Stanley
MS
$283B
| $205M | 0.05% |
980,800
+157,400
| +19% | +$31.2M |
2018 Q4
30 quarters
|
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.