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 | |
|---|---|---|---|---|---|---|
276
CALL
CVS Health
CVS
$120B
| $97.9M | 0.04% |
1,298,500
+71,800
| +6% | +$4.92M |
|
277
CALL
Cisco
CSCO
$480B
| $97.8M | 0.04% |
1,429,800
+9,500
| +0.7% | +$648K |
|
278
PUT
Cloudflare
NET
$110B
| $97.7M | 0.04% |
455,100
+120,900
| +36% | +$24.7M |
|
279
CALL
Marathon Digital Holdings
MARA
$3.77B
| $97.5M | 0.04% |
5,337,800
+1,679,500
| +46% | +$28.3M |
|
280
CALL
Royal Caribbean
RCL
$82.6B
| $96.2M | 0.04% |
297,300
-94,800
| -24% | -$31.7M |
|
281
PUT
Newmont
NEM
$123B
| $96.2M | 0.04% |
1,140,800
+289,000
| +34% | +$20.2M |
|
282
PUT
IonQ
IONQ
$17.6B
| $93.9M | 0.03% |
1,527,100
+654,700
| +75% | +$30.8M |
|
283
Amazon
AMZN
$2.97T
| $93.8M | 0.03% |
427,333
+341,809
| +400% | +$77.4M |
|
284
PUT
Starbucks
SBUX
$121B
| $93.5M | 0.03% |
1,104,900
-2,700
| -0.2% | -$242K |
|
|
TLN
285
CALL
Talen Energy Corp
TLN
$17.2B
| $92.9M | 0.03% |
218,400
+111,400
| +104% | +$40.2M |
|
286
CALL
FedEx
FDX
$77B
| $92.5M | 0.03% |
392,200
-98,300
| -20% | -$22.7M |
|
287
CALL
Western Digital
WDC
$152B
| $92.4M | 0.03% |
769,800
+171,800
| +29% | +$14M |
|
288
CALL
Texas Instruments
TXN
$261B
| $92.4M | 0.03% |
502,900
+50,500
| +11% | +$9.87M |
|
289
CALL
GameStop
GME
$8.42B
| $92M | 0.03% |
3,373,500
+775,400
| +30% | +$18.4M |
|
|
290
CALL
State Street Financial Select Sector SPDR ETF
XLF
$59B
| $91.9M | 0.03% |
1,706,600
-79,600
| -4% | -$4.22M |
|
291
PUT
Constellation Energy
CEG
$98.5B
| $91.5M | 0.03% |
278,000
-87,800
| -24% | -$28.3M |
|
292
CALL
Eaton
ETN
$178B
| $91.2M | 0.03% |
243,800
-85,200
| -26% | -$31M |
|
293
PUT
Occidental Petroleum
OXY
$58.9B
| $91M | 0.03% |
1,925,500
+460,200
| +31% | +$20.8M |
|
294
PUT
United Parcel Service
UPS
$89B
| $90.8M | 0.03% |
1,086,800
+458,200
| +73% | +$41.5M |
|
295
PUT
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.11B
| $90.7M | 0.03% |
685,800
-123,100
| -15% | -$3.6M |
|
296
PUT
MP Materials
MP
$9.54B
| $90.6M | 0.03% |
1,350,200
+674,000
| +100% | +$42.4M |
|
297
CALL
Amgen
AMGN
$224B
| $90.1M | 0.03% |
319,300
+91,900
| +40% | +$26.7M |
|
|
298
PUT
Eaton
ETN
$178B
| $90M | 0.03% |
240,500
+43,900
| +22% | +$16M |
|
299
PUT
Trade Desk
TTD
$6.39B
| $89.7M | 0.03% |
1,830,400
+867,900
| +90% | +$55.1M |
|
300
Vanguard S&P 500 ETF
VOO
$1.03T
| $89.1M | 0.03% |
145,518
+27,828
| +24% | +$16.4M |
|
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.