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 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
SNDK
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3726
Ball Corp
BALL
$16.6B
| $1.12M | ﹤0.01% |
+17,903
| New | +$1.05M |
|
3727
PUT
Commercial Metals
CMC
$7.77B
| $1.12M | ﹤0.01% |
17,800
-8,800
| -33% | -$619K |
|
3728
Lantheus
LNTH
$6.59B
| $1.12M | ﹤0.01% |
10,061
+2,306
| +30% | +$215K |
|
3729
McEwen Inc
MUX
$1.23B
| $1.11M | ﹤0.01% |
61,495
+17,057
| +38% | +$368K |
|
3730
CALL
ICICI Bank
IBN
$109B
| $1.11M | ﹤0.01% |
38,400
-76,100
| -66% | -$2.06M |
|
3731
PUT
QuidelOrtho
QDEL
$958M
| $1.11M | ﹤0.01% |
63,600
+38,400
| +152% | +$507K |
|
3732
Caesars Entertainment
CZR
$6.05B
| $1.11M | ﹤0.01% |
36,866
-107,386
| -74% | -$3.03M |
|
|
PSIX
3733
PUT
Power Solutions International
PSIX
$934M
| $1.11M | ﹤0.01% |
28,600
-9,000
| -24% | -$495K |
|
|
XRPT
3734
CALL
Volatility Shares Trust XRP 2X ETF
XRPT
$86.5M
| $1.11M | ﹤0.01% |
51,100
-10,900
| -18% | -$403K |
|
|
VIVO
3735
CALL
VivoPower PLC
VIVO
$124M
| $1.11M | ﹤0.01% |
214,600
+201,500
| +1,538% | +$832K |
|
3736
Vale
VALE
$65B
| $1.11M | ﹤0.01% |
+73,695
| New | +$1.2M |
|
3737
Methanex
MEOH
$4.54B
| $1.11M | ﹤0.01% |
24,013
-4,378
| -15% | -$258K |
|
3738
CALL
Paylocity
PCTY
$8.08B
| $1.11M | ﹤0.01% |
10,600
+300
| +3% | +$32K |
|
3739
Aurora
AUR
$12.7B
| $1.11M | ﹤0.01% |
162,349
-244,221
| -60% | -$1.49M |
|
|
DEA
3740
CALL
Easterly Government Properties
DEA
$1.15B
| $1.11M | ﹤0.01% |
44,400
+16,400
| +59% | +$385K |
|
3741
Yum China
YUMC
$14.8B
| $1.11M | ﹤0.01% |
+27,054
| New | +$1.24M |
|
3742
CALL
Henry Schein
HSIC
$10B
| $1.1M | ﹤0.01% |
13,200
+4,900
| +59% | +$375K |
|
3743
PUT
Louisiana-Pacific
LPX
$4.77B
| $1.1M | ﹤0.01% |
14,000
+10,800
| +338% | +$798K |
|
|
XOVR
3744
EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF
XOVR
$1.76B
| $1.1M | ﹤0.01% |
52,261
+15,458
| +42% | +$295K |
|
|
ADUR
3745
PUT
Aduro Clean Technologies
ADUR
$485M
| $1.1M | ﹤0.01% |
69,800
+25,400
| +57% | +$345K |
|
|
LAR
3746
CALL
Lithium Argentina AG
LAR
$1.11B
| $1.1M | ﹤0.01% |
132,700
+46,900
| +55% | +$435K |
|
3747
CALL
Upwork
UPWK
$1.1B
| $1.09M | ﹤0.01% |
130,900
-56,800
| -30% | -$538K |
|
3748
Under Armour
UAA
$2.26B
| $1.09M | ﹤0.01% |
171,255
-190,471
| -53% | -$1.13M |
|
3749
Penske Automotive Group
PAG
$14.4B
| $1.09M | ﹤0.01% |
+6,112
| New | +$1.02M |
|
|
ALMU
3750
CALL
Aeluma Inc
ALMU
$237M
| $1.09M | ﹤0.01% |
49,500
-33,100
| -40% | -$708K |
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.