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 | |
|---|---|---|---|---|---|---|
3776
CALL
Brink's
BCO
$5.07B
| $632K | ﹤0.01% |
+6,100
| New | +$732K |
|
3777
PUT
Atlanta Braves Holdings Series A
BATRA
$3.56B
| $632K | ﹤0.01% |
+13,400
| New | +$612K |
|
|
SGI
3778
PUT
Somnigroup International
SGI
$14.7B
| $628K | ﹤0.01% |
8,500
-23,400
| -73% | -$2.03M |
|
3779
PUT
Fiverr
FVRR
$397M
| $628K | ﹤0.01% |
62,700
+11,700
| +23% | +$161K |
|
3780
PUT
Penske Automotive Group
PAG
$12.8B
| $628K | ﹤0.01% |
+4,200
| New | +$665K |
|
3781
Mattel
MAT
$4.13B
| $627K | ﹤0.01% |
43,186
-18,205
| -30% | -$332K |
|
3782
Axcelis
ACLS
$4.4B
| $627K | ﹤0.01% |
+6,736
| New | +$597K |
|
3783
CALL
USA Compression Partners
USAC
$3.91B
| $626K | ﹤0.01% |
+23,100
| New | +$613K |
|
3784
Harmony Gold Mining
HMY
$9.58B
| $626K | ﹤0.01% |
+40,746
| New | +$805K |
|
3785
PUT
Cytokinetics
CYTK
$11B
| $626K | ﹤0.01% |
9,500
-9,000
| -49% | -$572K |
|
3786
Whirlpool
WHR
$2.36B
| $626K | ﹤0.01% |
+11,611
| New | +$852K |
|
3787
PUT
Brown & Brown
BRO
$22.6B
| $626K | ﹤0.01% |
+9,600
| New | +$692K |
|
3788
Payoneer
PAYO
$2.41B
| $625K | ﹤0.01% |
+129,420
| New | +$683K |
|
3789
PUT
Qfin Holdings
QFIN
$1.61B
| $625K | ﹤0.01% |
48,400
-10,200
| -17% | -$157K |
|
3790
PUT
Silicon Laboratories
SLAB
$7.17B
| $624K | ﹤0.01% |
+3,000
| New | +$550K |
|
3791
iShares US Aerospace & Defense ETF
ITA
$13.6B
| $623K | ﹤0.01% |
+2,850
| New | +$667K |
|
3792
PUT
Descartes Systems
DSGX
$6.08B
| $623K | ﹤0.01% |
+8,700
| New | +$642K |
|
3793
PUT
Atour Lifestyle Holdings
ATAT
$4.25B
| $622K | ﹤0.01% |
+16,900
| New | +$637K |
|
|
XOVR
3794
EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF
XOVR
$1.91B
| $622K | ﹤0.01% |
36,803
+1,856
| +5% | +$33.7K |
|
3795
CALL
Fidelity National Financial
FNF
$13.7B
| $621K | ﹤0.01% |
+13,400
| New | +$696K |
|
3796
iShares S&P 500 Growth ETF
IVW
$74.4B
| $620K | ﹤0.01% |
+5,485
| New | +$660K |
|
3797
CALL
ArcBest
ARCB
$3.58B
| $620K | ﹤0.01% |
6,300
-10,600
| -63% | -$1M |
|
3798
PUT
Steris
STE
$20.6B
| $619K | ﹤0.01% |
+2,800
| New | +$685K |
|
3799
PUT
Global X MSCI Norway ETF
NORW
$84.8M
| $616K | ﹤0.01% |
6,600
-7,500
| -53% | -$255K |
|
3800
PUT
MBIA
MBI
$321M
| $616K | ﹤0.01% |
+104,200
| New | +$664K |
|
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.