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
|
+$106M |
| 2 |
Advanced Micro Devices
AMD
|
+$81.1M |
| 3 |
Amazon
AMZN
|
+$73M |
| 4 |
TSMC
TSM
|
+$68.5M |
| 5 |
iShares Silver Trust
SLV
|
+$64.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$214M |
| 2 |
iShares Core S&P 500 ETF
IVV
|
+$209M |
| 3 |
Invesco NASDAQ 100 ETF
QQQM
|
+$209M |
| 4 |
Vanguard S&P 500 ETF
VOO
|
+$150M |
| 5 |
Meta Platforms (Facebook)
META
|
+$102M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.28% |
| 2 | Consumer Discretionary | 0.23% |
| 3 | Healthcare | 0.11% |
| 4 | Communication Services | 0.09% |
| 5 | Financials | 0.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2026
PUT
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$3.78B
| $1.43M | ﹤0.01% |
31,200
+9,500
| +44% | +$496K |
|
2027
CALL
Xcel Energy
XEL
$49.2B
| $1.43M | ﹤0.01% |
20,200
-6,200
| -23% | -$422K |
|
2028
Zillow
Z
$7.78B
| $1.43M | ﹤0.01% |
+20,851
| New | +$1.59M |
|
2029
CALL
Clover Health Investments
CLOV
$2.23B
| $1.43M | ﹤0.01% |
397,600
-285,100
| -42% | -$1.14M |
|
2030
PUT
Viking Holdings
VIK
$45.8B
| $1.42M | ﹤0.01% |
35,700
+19,200
| +116% | +$885K |
|
2031
CoStar Group
CSGP
$12.2B
| $1.41M | ﹤0.01% |
17,850
-4,463
| -20% | -$340K |
|
2032
CALL
Dave Inc
DAVE
$4.82B
| $1.41M | ﹤0.01% |
17,100
+4,400
| +35% | +$412K |
|
2033
CALL
Barclays
BCS
$87.8B
| $1.41M | ﹤0.01% |
92,000
-85,600
| -48% | -$1.28M |
|
2034
PUT
CenterPoint Energy
CNP
$28.3B
| $1.41M | ﹤0.01% |
39,000
+15,100
| +63% | +$506K |
|
2035
CALL
NOV
NOV
$6.84B
| $1.41M | ﹤0.01% |
92,700
+11,500
| +14% | +$172K |
|
2036
PUT
DTE Energy
DTE
$29.9B
| $1.41M | ﹤0.01% |
10,200
-3,500
| -26% | -$447K |
|
2037
CALL
First Horizon
FHN
$12.2B
| $1.41M | ﹤0.01% |
72,600
+21,600
| +42% | +$445K |
|
2038
CALL
Pentair
PNR
$10.6B
| $1.41M | ﹤0.01% |
16,100
-800
| -5% | -$76.2K |
|
2039
State Street SPDR S&P 400 Mid Cap Value ETF
MDYV
$2.76B
| $1.41M | ﹤0.01% |
+18,260
| New | +$1.47M |
|
2040
CALL
BioMarin Pharmaceuticals
BMRN
$11.9B
| $1.4M | ﹤0.01% |
+19,800
| New | +$1.33M |
|
2041
NextNav
NN
$1.79B
| $1.4M | ﹤0.01% |
114,795
+92,590
| +417% | +$1.12M |
|
2042
PUT
Axcelis
ACLS
$3.44B
| $1.4M | ﹤0.01% |
28,100
-3,100
| -10% | -$196K |
|
2043
CALL
Bumble
BMBL
$387M
| $1.4M | ﹤0.01% |
321,500
-282,600
| -47% | -$1.84M |
|
|
OKLO
2044
Oklo
OKLO
$6.41B
| $1.39M | ﹤0.01% |
+64,415
| New | +$2.18M |
|
2045
Abercrombie & Fitch
ANF
$4.55B
| $1.39M | ﹤0.01% |
18,207
+6,410
| +54% | +$690K |
|
|
2046
PUT
NOV
NOV
$6.84B
| $1.39M | ﹤0.01% |
91,100
+40,500
| +80% | +$606K |
|
2047
PUT
CBRE Group
CBRE
$43.3B
| $1.39M | ﹤0.01% |
10,600
-38,400
| -78% | -$5.22M |
|
2048
Golar LNG
GLNG
$4.82B
| $1.39M | ﹤0.01% |
36,465
+17,187
| +89% | +$674K |
|
2049
CALL
Weyerhaeuser
WY
$17.6B
| $1.38M | ﹤0.01% |
47,300
+28,900
| +157% | +$860K |
|
2050
PUT
Genuine Parts
GPC
$17.9B
| $1.38M | ﹤0.01% |
11,600
-1,400
| -11% | -$168K |
|
Similar funds
IMC Chicago's Q1 2025 Portfolio in Review
As of Q1 2025, IMC Chicago held 3,586 positions worth $177B, down 18% from $215B the previous quarter. Its ten largest holdings account for 46% of the portfolio.
IMC Chicago withdrew a net $21.1B in Q1 2025, closing 516 positions and reducing 1,388 holdings. Its most notable exit was iShares Core S&P 500 ETF, an estimated $209M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.28% of assets, down from 0.32% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, IMC Chicago opened a new position in Amazon worth $64M.
- IMC Chicago's largest Q1 2025 buy was Amazon: 336,493 shares worth $64M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q1 2025, an estimated $106M increase.
- IMC Chicago's biggest Q1 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $214M.
- IMC Chicago fully exited iShares Core S&P 500 ETF in Q1 2025, selling an estimated $209M.
- IMC Chicago's ten largest holdings make up 46% of its $177B portfolio in Q1 2025.
- IMC Chicago opened 482 new positions and closed 516 in Q1 2025.
- IMC Chicago's portfolio value fell 18% quarter-over-quarter to $177B.
Based on IMC Chicago's 13F filing for Q1 2025, filed 14 Apr 2025.