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 | |
|---|---|---|---|---|---|---|
3876
CALL
Schrodinger
SDGR
$1.11B
| $580K | ﹤0.01% |
51,100
-20,600
| -29% | -$285K |
|
3877
HubSpot
HUBS
$10.6B
| $580K | ﹤0.01% |
+2,378
| New | +$667K |
|
|
CHGX
3878
CALL
DELISTED
AXS Change Finance ESG ETF
CHGX
| $580K | ﹤0.01% |
+19,600
| New | +$580K |
|
3879
PUT
Vipshop
VIPS
$7.01B
| $580K | ﹤0.01% |
36,900
-23,500
| -39% | -$400K |
|
3880
iShares Russell Mid-Cap ETF
IWR
$56.8B
| $579K | ﹤0.01% |
+5,960
| New | +$595K |
|
3881
PUT
Box
BOX
$3.97B
| $579K | ﹤0.01% |
24,500
-3,800
| -13% | -$95.6K |
|
3882
CALL
PTC Therapeutics
PTCT
$6.49B
| $579K | ﹤0.01% |
+8,500
| New | +$602K |
|
3883
Invesco DB Base Metals Fund
DBB
$310M
| $579K | ﹤0.01% |
+24,619
| New | +$586K |
|
|
FMDG
3884
PUT
DELISTED
Fieldstone Merlin Dynamic Large Cap Growth ETF
FMDG
| $579K | ﹤0.01% |
+14,200
| New | +$579K |
|
3885
PUT
Reliance Steel & Aluminium
RS
$19.6B
| $577K | ﹤0.01% |
+1,900
| New | +$604K |
|
3886
PUT
Goldman Sachs Physical Gold ETF Shares
AAAU
$2.52B
| $577K | ﹤0.01% |
12,500
+600
| +5% | +$28.8K |
|
|
CMBT
3887
CMB.TECH NV
CMBT
$4.45B
| $577K | ﹤0.01% |
45,632
-19,754
| -30% | -$248K |
|
3888
Under Armour Class C
UA
$3.04B
| $577K | ﹤0.01% |
99,671
-60,439
| -38% | -$381K |
|
3889
PUT
Wyndham Hotels & Resorts
WH
$5.66B
| $577K | ﹤0.01% |
+7,100
| New | +$556K |
|
3890
Mercury Insurance
MCY
$5.69B
| $576K | ﹤0.01% |
+6,537
| New | +$585K |
|
3891
CALL
United Microelectronic
UMC
$53.9B
| $576K | ﹤0.01% |
64,100
-1,800
| -3% | -$17.6K |
|
3892
PUT
Pampa Energía
PAM
$4.74B
| $575K | ﹤0.01% |
+6,500
| New | +$539K |
|
3893
CALL
BrightSpring Health Services
BTSG
$14B
| $575K | ﹤0.01% |
13,500
+1,000
| +8% | +$40.3K |
|
3894
3D Systems Corp
DDD
$446M
| $575K | ﹤0.01% |
305,882
+13,193
| +5% | +$29.3K |
|
3895
PUT
PACS Group
PACS
$7.07B
| $575K | ﹤0.01% |
17,900
-8,000
| -31% | -$294K |
|
3896
CALL
Brunswick
BC
$5.25B
| $575K | ﹤0.01% |
+7,900
| New | +$637K |
|
3897
CALL
Invesco Mortgage Capital
IVR
$803M
| $574K | ﹤0.01% |
+71,100
| New | +$607K |
|
3898
PUT
Allison Transmission
ALSN
$9.83B
| $574K | ﹤0.01% |
+4,900
| New | +$557K |
|
|
LAR
3899
CALL
Lithium Argentina AG
LAR
$1.07B
| $573K | ﹤0.01% |
+85,800
| New | +$614K |
|
3900
CALL
Intapp
INTA
$2.03B
| $573K | ﹤0.01% |
22,300
+1,900
| +9% | +$56.6K |
|
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.