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 Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1301
PUT
Ally Financial
ALLY
$13.4B
| $9M | ﹤0.01% |
198,700
-11,500
| -5% | -$474K |
|
1302
PUT
Illumina
ILMN
$29B
| $9M | ﹤0.01% |
68,600
-1,000
| -1% | -$117K |
|
1303
PayPal
PYPL
$50.1B
| $9M | ﹤0.01% |
154,084
-661,359
| -81% | -$42.9M |
|
1304
Floor & Decor
FND
$6.3B
| $8.99M | ﹤0.01% |
147,585
-80,409
| -35% | -$5.21M |
|
1305
CALL
Novartis
NVS
$297B
| $8.98M | ﹤0.01% |
65,100
+2,800
| +4% | +$367K |
|
1306
PUT
Ovintiv
OVV
$17.6B
| $8.97M | ﹤0.01% |
228,900
+73,400
| +47% | +$2.85M |
|
1307
Direxion Daily S&P 500 Bear 3x ETF
SPXS
$332M
| $8.97M | ﹤0.01% |
+252,807
| New | +$9.25M |
|
1308
CALL
Steel Dynamics
STLD
$38.5B
| $8.96M | ﹤0.01% |
52,900
+14,500
| +38% | +$2.3M |
|
1309
CALL
NetApp
NTAP
$39.5B
| $8.96M | ﹤0.01% |
83,700
-24,100
| -22% | -$2.75M |
|
1310
PUT
The Mosaic Company
MOS
$7.4B
| $8.96M | ﹤0.01% |
371,900
+33,800
| +10% | +$910K |
|
1311
CALL
Nasdaq
NDAQ
$53.5B
| $8.95M | ﹤0.01% |
92,100
-18,300
| -17% | -$1.65M |
|
1312
PUT
Sterling Infrastructure
STRL
$16.5B
| $8.94M | ﹤0.01% |
29,200
+1,200
| +4% | +$413K |
|
1313
PUT
Schwab US Broad Market ETF
SCHB
$44.9B
| $8.94M | ﹤0.01% |
318,900
+21,200
| +7% | +$552K |
|
1314
Alamos Gold
AGI
$14B
| $8.92M | ﹤0.01% |
231,130
+135,956
| +143% | +$4.74M |
|
1315
United Parcel Service
UPS
$88.9B
| $8.89M | ﹤0.01% |
89,653
-164,338
| -65% | -$15.4M |
|
1316
CALL
Lumen
LUMN
$6.76B
| $8.89M | ﹤0.01% |
1,143,800
+195,000
| +21% | +$1.61M |
|
|
EH
1317
CALL
EHang Holdings
EH
$429M
| $8.88M | ﹤0.01% |
673,900
+390,700
| +138% | +$6.17M |
|
|
EA
1318
DELISTED
Electronic Arts
EA
| $8.85M | ﹤0.01% |
+43,331
| New | +$8.75M |
|
1319
CALL
Groupon
GRPN
$926M
| $8.84M | ﹤0.01% |
502,200
+206,000
| +70% | +$3.88M |
|
1320
PUT
O'Reilly Automotive
ORLY
$74.8B
| $8.84M | ﹤0.01% |
96,900
-42,500
| -30% | -$4.15M |
|
1321
United Rentals
URI
$71.1B
| $8.83M | ﹤0.01% |
+10,905
| New | +$9.47M |
|
|
CRCL
1322
Circle Internet Group
CRCL
$16.7B
| $8.82M | ﹤0.01% |
+111,204
| New | +$11.5M |
|
1323
PUT
Alaska Air
ALK
$5.31B
| $8.81M | ﹤0.01% |
175,100
+36,800
| +27% | +$1.7M |
|
1324
Zeta Global
ZETA
$6.89B
| $8.8M | ﹤0.01% |
432,374
+112,094
| +35% | +$2.09M |
|
1325
CALL
TransUnion
TRU
$15.2B
| $8.79M | ﹤0.01% |
102,500
+53,300
| +108% | +$4.38M |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.