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 | |
|---|---|---|---|---|---|---|
901
CALL
D.R. Horton
DHI
$39.9B
| $27.2M | 0.01% |
167,000
+27,100
| +19% | +$4.04M |
|
902
Arm
ARM
$269B
| $27.2M | 0.01% |
+76,670
| New | +$20.4M |
|
903
CALL
TKO Group
TKO
$13.6B
| $27.2M | 0.01% |
135,000
+102,600
| +317% | +$20M |
|
904
CALL
Air Products & Chemicals
APD
$67.1B
| $27.1M | 0.01% |
92,300
+3,500
| +4% | +$1.02M |
|
905
CALL
Targa Resources
TRGP
$62.2B
| $27M | 0.01% |
100,800
+52,800
| +110% | +$13.6M |
|
906
PUT
Norwegian Cruise Line
NCLH
$7.15B
| $26.9M | 0.01% |
1,275,600
+285,500
| +29% | +$5.33M |
|
907
PUT
XPO
XPO
$22.6B
| $26.9M | 0.01% |
130,800
+70,700
| +118% | +$15M |
|
908
PUT
Ondas Inc
ONDS
$4.35B
| $26.8M | 0.01% |
3,255,600
+907,300
| +39% | +$8.95M |
|
909
PUT
MaxLinear
MXL
$5.69B
| $26.8M | 0.01% |
+209,400
| New | +$14.8M |
|
910
CALL
MACOM Technology Solutions
MTSI
$20.5B
| $26.8M | 0.01% |
70,400
+51,500
| +272% | +$17.1M |
|
911
CALL
EQT Corp
EQT
$34.5B
| $26.6M | 0.01% |
501,200
+66,300
| +15% | +$3.72M |
|
|
EA
912
PUT
DELISTED
Electronic Arts
EA
| $26.6M | 0.01% |
129,900
+47,800
| +58% | +$9.68M |
|
913
CALL
MGM Resorts International
MGM
$10.4B
| $26.6M | 0.01% |
556,000
+159,400
| +40% | +$6.63M |
|
914
PUT
Sherwin-Williams
SHW
$81B
| $26.6M | 0.01% |
77,200
+19,900
| +35% | +$6.36M |
|
915
PUT
Planet Labs
PL
$6.46B
| $26.5M | 0.01% |
799,900
-29,700
| -4% | -$1.1M |
|
916
CALL
LyondellBasell Industries
LYB
$20.5B
| $26.5M | 0.01% |
502,900
-54,700
| -10% | -$3.77M |
|
917
Nu Holdings
NU
$74.2B
| $26.4M | 0.01% |
1,976,287
+1,293,581
| +189% | +$17.4M |
|
918
Charter Communications
CHTR
$18.1B
| $26.4M | 0.01% |
185,635
+179,130
| +2,754% | +$29.9M |
|
919
PUT
Emerson Electric
EMR
$85.2B
| $26.4M | 0.01% |
184,400
+44,200
| +32% | +$6.22M |
|
920
Vanguard Morningstar Total Stock Market ETF
VTI
$688B
| $26.4M | 0.01% |
71,328
+48,506
| +213% | +$17.3M |
|
921
CALL
Modine Manufacturing
MOD
$10.3B
| $26.3M | 0.01% |
98,600
+53,600
| +119% | +$14.1M |
|
922
CALL
Ares Management
ARES
$31.6B
| $26.3M | 0.01% |
236,300
+44,500
| +23% | +$5.34M |
|
923
CALL
Deckers Outdoor
DECK
$11.7B
| $26.3M | 0.01% |
264,900
+48,600
| +22% | +$5.12M |
|
924
CALL
BHP
BHP
$230B
| $26.3M | 0.01% |
315,700
+40,100
| +15% | +$3.33M |
|
925
CALL
L3Harris
LHX
$47.8B
| $26.3M | 0.01% |
90,500
+13,800
| +18% | +$4.39M |
|
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.