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 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
401
PUT
ConocoPhillips
COP
$151B
| $61.7M | 0.02% |
652,300
+137,100
| +27% | +$13M |
|
402
CALL
General Motors
GM
$78.5B
| $61.4M | 0.02% |
1,006,700
-33,100
| -3% | -$1.85M |
|
403
PUT
Birkenstock
BIRK
$6.97B
| $61.1M | 0.02% |
1,350,500
+1,318,800
| +4,160% | +$64.5M |
|
404
SoFi Technologies
SOFI
$23.3B
| $61M | 0.02% |
2,308,987
+1,721,611
| +293% | +$40.9M |
|
405
PUT
TJX Companies
TJX
$173B
| $60.8M | 0.02% |
420,800
+159,500
| +61% | +$21.2M |
|
406
iShares Silver Trust
SLV
$31.6B
| $60.7M | 0.02% |
1,433,264
-42,997
| -3% | -$1.54M |
|
407
CALL
Lyft
LYFT
$6.66B
| $60.6M | 0.02% |
2,752,300
+1,243,500
| +82% | +$20.8M |
|
408
CALL
General Dynamics
GD
$106B
| $60.1M | 0.02% |
176,100
-16,900
| -9% | -$5.33M |
|
409
UnitedHealth
UNH
$368B
| $60M | 0.02% |
173,699
-113,760
| -40% | -$34.4M |
|
410
PUT
Freeport-McMoran
FCX
$96.4B
| $59.7M | 0.02% |
1,522,900
+698,000
| +85% | +$30.3M |
|
411
CALL
Rivian
RIVN
$23.6B
| $59.7M | 0.02% |
4,064,500
+373,000
| +10% | +$5M |
|
412
CALL
United States Oil Fund
USO
$1.79B
| $59.6M | 0.02% |
808,100
-429,800
| -35% | -$32.3M |
|
413
PUT
McKesson
MCK
$104B
| $59.3M | 0.02% |
76,700
+20,200
| +36% | +$14.2M |
|
414
CALL
Danaher
DHR
$146B
| $59M | 0.02% |
297,600
+45,600
| +18% | +$9.07M |
|
415
PUT
Boston Scientific
BSX
$74.2B
| $58.7M | 0.02% |
601,000
+212,500
| +55% | +$22M |
|
416
PUT
T-Mobile US
TMUS
$195B
| $58.5M | 0.02% |
244,200
-104,700
| -30% | -$25.3M |
|
417
CALL
BP
BP
$111B
| $58.3M | 0.02% |
1,691,100
+222,800
| +15% | +$7.46M |
|
418
CALL
Carnival Corporation Ltd
CCL
$37.9B
| $58.3M | 0.02% |
2,015,300
-3,700
| -0.2% | -$112K |
|
419
CALL
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.7B
| $57.9M | 0.02% |
483,600
+27,800
| +6% | +$3.18M |
|
420
PUT
Moderna
MRNA
$23.9B
| $57.9M | 0.02% |
2,240,500
+583,700
| +35% | +$16.3M |
|
421
PUT
RTX Corp
RTX
$302B
| $57.5M | 0.02% |
343,500
-24,900
| -7% | -$3.87M |
|
422
PUT
Analog Devices
ADI
$189B
| $56.8M | 0.02% |
231,300
+149,000
| +181% | +$35.8M |
|
423
PUT
Blackstone
BX
$118B
| $56.7M | 0.02% |
331,900
+1,700
| +0.5% | +$291K |
|
424
ServiceNow
NOW
$131B
| $56.5M | 0.02% |
306,920
+197,045
| +179% | +$36.8M |
|
425
PUT
Valero Energy
VLO
$93B
| $56.4M | 0.02% |
331,400
+73,800
| +29% | +$11M |
|
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 deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- 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.