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 | |
|---|---|---|---|---|---|---|
1451
CALL
Rambus
RMBS
$10.4B
| $7.33M | ﹤0.01% |
79,800
-18,700
| -19% | -$1.84M |
|
1452
PUT
Vail Resorts
MTN
$5.21B
| $7.33M | ﹤0.01% |
55,200
+7,300
| +15% | +$1.07M |
|
|
SEZL
1453
CALL
Sezzle
SEZL
$3.97B
| $7.32M | ﹤0.01% |
+115,300
| New | +$7.86M |
|
1454
PUT
Joby Aviation
JOBY
$8.71B
| $7.31M | ﹤0.01% |
554,100
-73,200
| -12% | -$1.12M |
|
1455
PUT
ProShares Ether Strategy ETF
EETH
$54M
| $7.3M | ﹤0.01% |
203,900
-14,700
| -7% | -$735K |
|
1456
PUT
Emcor
EME
$35.7B
| $7.28M | ﹤0.01% |
11,900
-6,300
| -35% | -$4.08M |
|
1457
AerCap
AER
$23.5B
| $7.26M | ﹤0.01% |
50,507
+18,609
| +58% | +$2.46M |
|
1458
PUT
FIVE9
FIVN
$2.58B
| $7.25M | ﹤0.01% |
361,500
+275,700
| +321% | +$5.85M |
|
1459
CALL
Vanguard S&P 500 Growth ETF
VOOG
$27.3B
| $7.25M | ﹤0.01% |
97,800
+28,200
| +41% | +$2.08M |
|
1460
PUT
VF Corp
VFC
$5.86B
| $7.23M | ﹤0.01% |
400,000
-33,600
| -8% | -$544K |
|
1461
CALL
XPO
XPO
$23.5B
| $7.23M | ﹤0.01% |
53,200
-3,200
| -6% | -$436K |
|
1462
Vistra
VST
$48.2B
| $7.23M | ﹤0.01% |
44,785
-765
| -2% | -$139K |
|
1463
CALL
Keurig Dr Pepper
KDP
$39.9B
| $7.22M | ﹤0.01% |
257,900
-23,600
| -8% | -$648K |
|
1464
CALL
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$4.23B
| $7.22M | ﹤0.01% |
109,500
+59,400
| +119% | +$3.92M |
|
1465
CALL
Bunge Global
BG
$21.6B
| $7.22M | ﹤0.01% |
81,000
-16,300
| -17% | -$1.5M |
|
1466
PUT
T. Rowe Price
TROW
$24.3B
| $7.21M | ﹤0.01% |
70,400
+1,700
| +2% | +$175K |
|
|
QXO
1467
CALL
QXO Inc
QXO
$16.6B
| $7.2M | ﹤0.01% |
373,100
+129,000
| +53% | +$2.47M |
|
1468
CALL
MPLX
MPLX
$59.5B
| $7.17M | ﹤0.01% |
134,400
+83,300
| +163% | +$4.34M |
|
1469
PUT
SL Green Realty
SLG
$3.9B
| $7.16M | ﹤0.01% |
156,100
-30,700
| -16% | -$1.52M |
|
1470
PUT
C.H. Robinson
CHRW
$17.3B
| $7.15M | ﹤0.01% |
44,500
-900
| -2% | -$133K |
|
1471
Chevron
CVX
$382B
| $7.15M | ﹤0.01% |
46,911
-8,723
| -16% | -$1.33M |
|
1472
CALL
Public Storage
PSA
$60.8B
| $7.14M | ﹤0.01% |
27,500
-1,600
| -5% | -$448K |
|
1473
PUT
Maplebear
CART
$11.9B
| $7.12M | ﹤0.01% |
158,400
+60,100
| +61% | +$2.46M |
|
1474
CALL
UBS Group
UBS
$177B
| $7.12M | ﹤0.01% |
153,800
+77,400
| +101% | +$3.13M |
|
|
1475
CALL
T. Rowe Price
TROW
$24.3B
| $7.09M | ﹤0.01% |
69,300
+13,400
| +24% | +$1.38M |
|
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.