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 |
Sprott Physical Silver Trust
PSLV
|
+$344M |
| 2 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$297M |
| 3 |
Tesla
TSLA
|
+$235M |
| 4 |
Sprott Physical Gold and Silver Trust
CEF
|
+$177M |
| 5 |
Meta Platforms (Facebook)
META
|
+$120M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$426M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$390M |
| 3 |
NVIDIA
NVDA
|
+$72.8M |
| 4 |
Broadcom
AVGO
|
+$66.7M |
| 5 |
AST SpaceMobile
ASTS
|
+$62.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.58% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Financials | 0.16% |
| 4 | Communication Services | 0.13% |
| 5 | Industrials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1751
CALL
uniQure
QURE
$2.76B
| $5.21M | ﹤0.01% |
318,700
+82,300
| +35% | +$1.67M |
|
1752
CALL
FIVE9
FIVN
$1.95B
| $5.21M | ﹤0.01% |
343,400
+61,600
| +22% | +$1.07M |
|
1753
CALL
Boston Properties
BXP
$10.8B
| $5.2M | ﹤0.01% |
100,200
-40,000
| -29% | -$2.41M |
|
1754
PUT
Natera
NTRA
$38.2B
| $5.2M | ﹤0.01% |
26,000
+2,600
| +11% | +$560K |
|
1755
CALL
Booz Allen Hamilton
BAH
$7.69B
| $5.18M | ﹤0.01% |
66,400
+900
| +1% | +$75.9K |
|
1756
Cummins
CMI
$90.8B
| $5.18M | ﹤0.01% |
+9,626
| New | +$5.45M |
|
1757
CALL
PACS Group
PACS
$7.19B
| $5.16M | ﹤0.01% |
160,800
-10,700
| -6% | -$393K |
|
1758
Affirm
AFRM
$25.1B
| $5.16M | ﹤0.01% |
+112,682
| New | +$6.51M |
|
1759
PUT
Ameriprise Financial
AMP
$47.3B
| $5.16M | ﹤0.01% |
+11,600
| New | +$5.59M |
|
1760
Antero Resources
AR
$10.4B
| $5.15M | ﹤0.01% |
121,277
+72,788
| +150% | +$2.66M |
|
1761
CALL
BlackSky Technology
BKSY
$880M
| $5.15M | ﹤0.01% |
204,500
+93,800
| +85% | +$2.24M |
|
1762
PUT
Roper Technologies
ROP
$35.8B
| $5.13M | ﹤0.01% |
+14,500
| New | +$5.35M |
|
1763
CALL
Root
ROOT
$946M
| $5.13M | ﹤0.01% |
116,100
-2,100
| -2% | -$123K |
|
1764
CALL
2x Bitcoin ETF
BITX
$994M
| $5.12M | ﹤0.01% |
347,200
-94,500
| -21% | -$1.93M |
|
|
PPLI
1765
PUT
People Inc
PPLI
$3.29B
| $5.12M | ﹤0.01% |
+127,800
| New | +$4.85M |
|
1766
CALL
Comstock Resources
CRK
$3.83B
| $5.1M | ﹤0.01% |
242,000
+17,200
| +8% | +$366K |
|
1767
CALL
Nice
NICE
$5.53B
| $5.09M | ﹤0.01% |
46,200
-59,400
| -56% | -$6.78M |
|
1768
CALL
Ormat Technologies
ORA
$6.4B
| $5.09M | ﹤0.01% |
45,500
+33,800
| +289% | +$3.92M |
|
1769
PUT
Targa Resources
TRGP
$60.5B
| $5.09M | ﹤0.01% |
20,300
+7,800
| +62% | +$1.69M |
|
1770
CALL
Urban Outfitters
URBN
$6.32B
| $5.08M | ﹤0.01% |
80,200
+43,700
| +120% | +$3M |
|
1771
CALL
Aptiv
APTV
$12.4B
| $5.08M | ﹤0.01% |
73,100
-32,200
| -31% | -$2.48M |
|
1772
Perrigo
PRGO
$1.47B
| $5.07M | ﹤0.01% |
472,311
+424,798
| +894% | +$5.5M |
|
1773
PUT
Enbridge
ENB
$121B
| $5.07M | ﹤0.01% |
93,600
+10,500
| +13% | +$535K |
|
1774
PUT
Frontline
FRO
$8.46B
| $5.06M | ﹤0.01% |
145,200
+54,300
| +60% | +$1.66M |
|
1775
CALL
Northern Oil and Gas
NOG
$2.37B
| $5.06M | ﹤0.01% |
173,100
+33,900
| +24% | +$878K |
|
Similar funds
IMC Chicago's Q1 2026 Portfolio in Review
As of Q1 2026, IMC Chicago held 6,062 positions worth $278B, up 1.1% from $275B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $22.2B of net new capital in Q1 2026, opening 2,049 new positions and adding to 1,848 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
By sector, the portfolio is most concentrated in Technology at 0.58% of assets, up from 0.56% a quarter earlier, followed by Consumer Discretionary and Financials.
On the sell side, the largest reduction was Broadcom, an estimated $66.7M trimmed.
- IMC Chicago's largest Q1 2026 buy was State Street SPDR S&P 500 ETF Trust: 436,397 shares worth $284M.
- IMC Chicago added most to Sprott Physical Silver Trust in Q1 2026, an estimated $344M increase.
- IMC Chicago's biggest Q1 2026 reduction was Broadcom, cutting an estimated $66.7M.
- IMC Chicago fully exited Invesco QQQ Trust in Q1 2026, selling an estimated $426M.
- IMC Chicago's ten largest holdings make up 38% of its $278B portfolio in Q1 2026.
- IMC Chicago opened 2,049 new positions and closed 389 in Q1 2026.
- IMC Chicago's portfolio value rose 1.1% quarter-over-quarter to $278B.
Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.