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 | |
|---|---|---|---|---|---|---|
2576
CALL
ODDITY Tech
ODD
$751M
| $1.99M | ﹤0.01% |
148,600
+98,100
| +194% | +$2.46M |
|
|
OPRA
2577
CALL
Opera Ltd
OPRA
$1.75B
| $1.99M | ﹤0.01% |
139,400
+110,100
| +376% | +$1.52M |
|
2578
PUT
Becton Dickinson
BDX
$42.6B
| $1.98M | ﹤0.01% |
12,600
-1,600
| -11% | -$294K |
|
2579
PUT
H&R Block
HRB
$5.29B
| $1.98M | ﹤0.01% |
62,300
+42,000
| +207% | +$1.46M |
|
2580
PUT
New Oriental
EDU
$7.84B
| $1.98M | ﹤0.01% |
34,900
-300
| -0.9% | -$17.1K |
|
2581
PUT
Neurocrine Biosciences
NBIX
$17.4B
| $1.98M | ﹤0.01% |
15,000
+4,900
| +49% | +$650K |
|
|
KLAR
2582
PUT
Klarna Group
KLAR
$7.09B
| $1.98M | ﹤0.01% |
150,900
+50,900
| +51% | +$1.01M |
|
2583
PUT
FIVE9
FIVN
$1.97B
| $1.98M | ﹤0.01% |
130,200
-231,300
| -64% | -$4.02M |
|
2584
PUT
Leidos
LDOS
$13.5B
| $1.98M | ﹤0.01% |
12,700
-2,700
| -18% | -$485K |
|
2585
CALL
ImmunityBio
IBRX
$7.86B
| $1.97M | ﹤0.01% |
+257,300
| New | +$1.76M |
|
2586
PUT
Impinj
PI
$4.19B
| $1.97M | ﹤0.01% |
+19,200
| New | +$2.55M |
|
2587
CALL
Trimble
TRMB
$12.4B
| $1.97M | ﹤0.01% |
30,200
+11,300
| +60% | +$785K |
|
2588
Warby Parker
WRBY
$3.02B
| $1.97M | ﹤0.01% |
93,452
+9,334
| +11% | +$231K |
|
2589
CALL
Amcor
AMCR
$20B
| $1.97M | ﹤0.01% |
49,500
+43,400
| +711% | +$1.92M |
|
2590
State Street SPDR S&P Retail ETF
XRT
$374M
| $1.97M | ﹤0.01% |
24,428
+5,206
| +27% | +$447K |
|
2591
PUT
Copa Holdings
CPA
$5.67B
| $1.97M | ﹤0.01% |
17,300
+4,700
| +37% | +$617K |
|
2592
PUT
Nabors Industries
NBR
$1.22B
| $1.96M | ﹤0.01% |
22,800
+800
| +4% | +$58.1K |
|
2593
CALL
Array Technologies
ARRY
$915M
| $1.96M | ﹤0.01% |
271,200
+59,500
| +28% | +$551K |
|
2594
Williams Companies
WMB
$90.7B
| $1.96M | ﹤0.01% |
+26,881
| New | +$1.86M |
|
2595
CALL
Skywest
SKYW
$3.94B
| $1.96M | ﹤0.01% |
21,300
-1,200
| -5% | -$118K |
|
2596
CALL
Badger Meter
BMI
$4.33B
| $1.95M | ﹤0.01% |
12,800
-2,400
| -16% | -$377K |
|
2597
PUT
Vanguard Short-Term Treasury ETF
VGSH
$29.3B
| $1.95M | ﹤0.01% |
+21,200
| New | +$1.24M |
|
2598
CALL
Regal Rexnord
RRX
$13.7B
| $1.95M | ﹤0.01% |
10,400
-21,900
| -68% | -$4.07M |
|
2599
PUT
Warrior Met Coal
HCC
$4.17B
| $1.95M | ﹤0.01% |
20,900
-10,500
| -33% | -$946K |
|
2600
PUT
Rithm Capital
RITM
$5.14B
| $1.95M | ﹤0.01% |
205,300
+104,000
| +103% | +$1.09M |
|
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.