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 | |
|---|---|---|---|---|---|---|
1926
CALL
TC Energy
TRP
$70.1B
| $1.67M | ﹤0.01% |
35,300
-22,400
| -39% | -$1.04M |
|
1927
PUT
GigaCloud Technology
GCT
$1.55B
| $1.67M | ﹤0.01% |
117,300
-4,700
| -4% | -$85.7K |
|
1928
PUT
Under Armour
UAA
$3.01B
| $1.66M | ﹤0.01% |
266,000
+13,700
| +5% | +$102K |
|
1929
Target
TGT
$66.3B
| $1.66M | ﹤0.01% |
15,891
-75,431
| -83% | -$9.43M |
|
1930
PUT
Hecla Mining
HL
$9.49B
| $1.66M | ﹤0.01% |
297,900
-35,500
| -11% | -$197K |
|
1931
PUT
Sphere Entertainment
SPHR
$5.02B
| $1.65M | ﹤0.01% |
50,300
+8,500
| +20% | +$345K |
|
1932
PUT
Trupanion
TRUP
$1.13B
| $1.64M | ﹤0.01% |
44,100
+1,600
| +4% | +$66.5K |
|
1933
Builders FirstSource
BLDR
$7.29B
| $1.64M | ﹤0.01% |
+13,138
| New | +$1.91M |
|
1934
CALL
Upwork
UPWK
$1.18B
| $1.63M | ﹤0.01% |
125,100
-19,200
| -13% | -$292K |
|
|
SGI
1935
CALL
Somnigroup International
SGI
$14.4B
| $1.63M | ﹤0.01% |
27,200
-55,300
| -67% | -$3.35M |
|
1936
CALL
Louisiana-Pacific
LPX
$5.14B
| $1.63M | ﹤0.01% |
17,700
+4,700
| +36% | +$491K |
|
1937
PUT
Copa Holdings
CPA
$5.56B
| $1.63M | ﹤0.01% |
17,600
-700
| -4% | -$65K |
|
|
BBBY
1938
PUT
Bed Bath & Beyond
BBBY
$479M
| $1.62M | ﹤0.01% |
308,000
-27,170
| -8% | -$165K |
|
1939
Portillo's
PTLO
$345M
| $1.62M | ﹤0.01% |
136,323
+50,929
| +60% | +$662K |
|
1940
CALL
Veralto
VLTO
$24.1B
| $1.62M | ﹤0.01% |
16,600
+3,900
| +31% | +$389K |
|
1941
CALL
Canadian Solar
CSIQ
$932M
| $1.61M | ﹤0.01% |
185,900
-71,100
| -28% | -$749K |
|
1942
PUT
Novavax
NVAX
$1.21B
| $1.6M | ﹤0.01% |
249,800
+157,400
| +170% | +$1.3M |
|
1943
PUT
Cal-Maine
CALM
$4.43B
| $1.6M | ﹤0.01% |
+17,600
| New | +$1.74M |
|
1944
CALL
HF Sinclair
DINO
$16.2B
| $1.6M | ﹤0.01% |
48,600
+6,200
| +15% | +$217K |
|
|
BBBY
1945
Bed Bath & Beyond
BBBY
$479M
| $1.6M | ﹤0.01% |
303,045
-23,083
| -7% | -$140K |
|
1946
PUT
Magna International
MGA
$18.8B
| $1.6M | ﹤0.01% |
47,000
+7,400
| +19% | +$284K |
|
1947
PUT
Semtech
SMTC
$9.65B
| $1.6M | ﹤0.01% |
46,400
+14,300
| +45% | +$705K |
|
1948
CALL
Innovative Industrial Properties
IIPR
$1.77B
| $1.6M | ﹤0.01% |
29,500
-13,900
| -32% | -$963K |
|
1949
Noble Corp
NE
$6.55B
| $1.6M | ﹤0.01% |
67,321
+51,909
| +337% | +$1.49M |
|
1950
PUT
ARK 21Shares Bitcoin ETF
ARKB
$2.42B
| $1.59M | ﹤0.01% |
58,200
+8,400
| +17% | +$260K |
|
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.