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 | |
|---|---|---|---|---|---|---|
3151
PUT
Idacorp
IDA
$7.85B
| $1.82M | ﹤0.01% |
+12,000
| New | +$1.73M |
|
3152
Huntington Ingalls Industries
HII
$11.3B
| $1.82M | ﹤0.01% |
+6,486
| New | +$2.17M |
|
3153
CALL
Virtu Financial
VIRT
$5.69B
| $1.81M | ﹤0.01% |
30,400
+7,100
| +30% | +$373K |
|
3154
PUT
Hallador Energy
HNRG
$783M
| $1.81M | ﹤0.01% |
104,100
+27,200
| +35% | +$468K |
|
3155
Booking.com
BKNG
$145B
| $1.81M | ﹤0.01% |
+10,155
| New | +$1.73M |
|
3156
PUT
Albertsons Companies
ACI
$6.09B
| $1.81M | ﹤0.01% |
133,700
+44,900
| +51% | +$719K |
|
3157
PUT
Warby Parker
WRBY
$3.01B
| $1.8M | ﹤0.01% |
59,400
-88,200
| -60% | -$2.18M |
|
3158
PUT
Arbor Realty Trust
ABR
$979M
| $1.8M | ﹤0.01% |
332,500
+169,400
| +104% | +$1.1M |
|
3159
PUT
Qualys
QLYS
$5.94B
| $1.8M | ﹤0.01% |
13,100
+5,900
| +82% | +$580K |
|
3160
PUT
Blackstone Mortgage Trust
BXMT
$2.39B
| $1.8M | ﹤0.01% |
106,100
+13,700
| +15% | +$256K |
|
3161
VanEck Uranium + Nuclear Energy ETF
NLR
$4.22B
| $1.8M | ﹤0.01% |
15,482
+7,228
| +88% | +$964K |
|
3162
Toyota
TM
$233B
| $1.79M | ﹤0.01% |
+10,651
| New | +$2.02M |
|
3163
CALL
Bitwise Bitcoin ETF
BITB
$2.95B
| $1.79M | ﹤0.01% |
56,300
-7,100
| -11% | -$277K |
|
3164
CALL
The RealReal
REAL
$1.2B
| $1.79M | ﹤0.01% |
152,000
-68,300
| -31% | -$728K |
|
|
LAC
3165
PUT
Lithium Americas
LAC
$1.09B
| $1.79M | ﹤0.01% |
465,300
+96,900
| +26% | +$461K |
|
3166
CALL
Vital Farms
VITL
$426M
| $1.79M | ﹤0.01% |
154,000
+98,800
| +179% | +$1.1M |
|
3167
CALL
Robert Half
RHI
$4.36B
| $1.79M | ﹤0.01% |
58,300
+14,200
| +32% | +$398K |
|
3168
CALL
Alpha and Omega Semiconductor
AOSL
$763M
| $1.78M | ﹤0.01% |
37,700
+18,800
| +99% | +$755K |
|
|
BETA
3169
CALL
Beta Technologies Inc
BETA
$5.19B
| $1.78M | ﹤0.01% |
106,400
+85,800
| +417% | +$1.43M |
|
3170
CALL
Starwood Property Trust
STWD
$5.95B
| $1.78M | ﹤0.01% |
108,800
+25,600
| +31% | +$445K |
|
3171
Credicorp
BAP
$30.4B
| $1.78M | ﹤0.01% |
4,569
+3,587
| +365% | +$1.23M |
|
|
QNT
3172
Quantinuum Inc
QNT
$1.83B
| $1.78M | ﹤0.01% |
+21,772
| New | +$1.4M |
|
3173
ProShares UltraShort Silver
ZSL
$71M
| $1.78M | ﹤0.01% |
57,762
+25,851
| +81% | +$581K |
|
|
SII
3174
PUT
Sprott
SII
$3.33B
| $1.78M | ﹤0.01% |
15,800
+2,200
| +16% | +$288K |
|
3175
Sprott Uranium Miners ETF
URNM
$2.16B
| $1.77M | ﹤0.01% |
33,712
+11,753
| +54% | +$727K |
|
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.