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 | |
|---|---|---|---|---|---|---|
2051
iShares 7-10 Year Treasury Bond ETF
IEF
$42.1B
| $5.24M | ﹤0.01% |
55,388
+20,379
| +58% | +$1.93M |
|
2052
CALL
Xylem
XYL
$24.7B
| $5.24M | ﹤0.01% |
44,300
+32,200
| +266% | +$3.72M |
|
|
SOLT
2053
CALL
2x Solana ETF
SOLT
$190M
| $5.23M | ﹤0.01% |
162,200
-67,800
| -29% | -$2.86M |
|
2054
HubSpot
HUBS
$12.3B
| $5.21M | ﹤0.01% |
28,567
+26,189
| +1,101% | +$5.48M |
|
2055
PUT
First Citizens BancShares
FCNCA
$24.9B
| $5.2M | ﹤0.01% |
2,500
-800
| -24% | -$1.6M |
|
2056
CALL
American Eagle Outfitters
AEO
$2.91B
| $5.2M | ﹤0.01% |
302,400
-50,200
| -14% | -$869K |
|
2057
PUT
CBRE Group
CBRE
$42.8B
| $5.2M | ﹤0.01% |
38,600
-20,100
| -34% | -$2.77M |
|
2058
CALL
Chemours
CC
$2.3B
| $5.2M | ﹤0.01% |
253,300
-143,200
| -36% | -$3.28M |
|
|
WYFI
2059
CALL
WhiteFiber Inc
WYFI
$759M
| $5.19M | ﹤0.01% |
133,700
+56,000
| +72% | +$1.35M |
|
2060
Warby Parker
WRBY
$3.01B
| $5.18M | ﹤0.01% |
170,803
+77,351
| +83% | +$1.91M |
|
2061
CALL
Gen Digital
GEN
$18.3B
| $5.18M | ﹤0.01% |
208,200
+141,300
| +211% | +$3.16M |
|
2062
CALL
Fortune Brands Innovations
FBIN
$5.15B
| $5.18M | ﹤0.01% |
94,300
+12,000
| +15% | +$480K |
|
2063
Ambarella
AMBA
$2.78B
| $5.17M | ﹤0.01% |
60,277
+34,669
| +135% | +$2.39M |
|
2064
Rio Tinto
RIO
$168B
| $5.17M | ﹤0.01% |
+54,458
| New | +$5.52M |
|
2065
PUT
GSK
GSK
$100B
| $5.17M | ﹤0.01% |
98,600
-9,400
| -9% | -$497K |
|
2066
CALL
Synchrony
SYF
$26B
| $5.16M | ﹤0.01% |
67,800
-9,000
| -12% | -$661K |
|
2067
PUT
Fidelity National Information Services
FIS
$21.6B
| $5.16M | ﹤0.01% |
132,600
+55,100
| +71% | +$2.38M |
|
2068
CALL
AGNC Investment
AGNC
$12.6B
| $5.15M | ﹤0.01% |
472,600
+21,400
| +5% | +$225K |
|
2069
CALL
Aaon
AAON
$6.55B
| $5.15M | ﹤0.01% |
40,600
+23,500
| +137% | +$2.75M |
|
2070
CALL
Huntington Ingalls Industries
HII
$11.3B
| $5.15M | ﹤0.01% |
18,400
-101,700
| -85% | -$34M |
|
2071
PUT
Planet Fitness
PLNT
$3.84B
| $5.15M | ﹤0.01% |
98,700
+56,400
| +133% | +$3.31M |
|
2072
MaxLinear
MXL
$5.69B
| $5.15M | ﹤0.01% |
+40,196
| New | +$2.84M |
|
2073
CALL
BJs Wholesale Club
BJ
$11.8B
| $5.14M | ﹤0.01% |
58,900
+3,700
| +7% | +$339K |
|
2074
Futu Holdings
FUTU
$17.1B
| $5.13M | ﹤0.01% |
54,750
+1,423
| +3% | +$182K |
|
|
AIRL
2075
PUT
DELISTED
Themes Airlines ETF
AIRL
| $5.13M | ﹤0.01% |
231,800
+133,900
| +137% | +$2.96M |
|
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.