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 | |
|---|---|---|---|---|---|---|
|
YBIT
2801
PUT
YieldMax Bitcoin Option Income Strategy ETF
YBIT
$46M
| $2.47M | ﹤0.01% |
109,800
-1,900
| -2% | -$43K |
|
2802
ProShares UltraPro Short Dow 30
SDOW
$164M
| $2.47M | ﹤0.01% |
102,000
-38,711
| -28% | -$1.09M |
|
2803
PUT
Vanguard Total World Stock ETF
VT
$81.5B
| $2.46M | ﹤0.01% |
15,700
-3,400
| -18% | -$519K |
|
2804
PUT
H&R Block
HRB
$6.05B
| $2.46M | ﹤0.01% |
64,700
+2,400
| +4% | +$83.6K |
|
|
NTSK
2805
PUT
Netskope Inc
NTSK
$5.7B
| $2.46M | ﹤0.01% |
225,100
+141,600
| +170% | +$1.44M |
|
2806
CALL
Hyliion Holdings
HYLN
$659M
| $2.46M | ﹤0.01% |
472,400
+323,200
| +217% | +$1.34M |
|
|
AMZO
2807
PUT
Tradr 2X Short AMZN Daily ETF
AMZO
$3.1M
| $2.46M | ﹤0.01% |
+91,000
| New | +$1.56M |
|
2808
PUT
Ingersoll Rand
IR
$29.6B
| $2.46M | ﹤0.01% |
30,000
+17,200
| +134% | +$1.33M |
|
2809
CALL
Performance Food Group
PFGC
$15.5B
| $2.46M | ﹤0.01% |
22,000
+9,500
| +76% | +$904K |
|
2810
BJs Wholesale Club
BJ
$11.8B
| $2.46M | ﹤0.01% |
+28,180
| New | +$2.58M |
|
2811
CALL
Packaging Corp of America
PKG
$21.1B
| $2.45M | ﹤0.01% |
10,300
+6,400
| +164% | +$1.4M |
|
2812
CALL
Vornado Realty Trust
VNO
$6.83B
| $2.45M | ﹤0.01% |
62,400
+32,300
| +107% | +$1.04M |
|
|
PONY
2813
CALL
Pony AI Inc
PONY
$3.19B
| $2.45M | ﹤0.01% |
352,700
+156,500
| +80% | +$1.45M |
|
2814
CALL
Sociedad Química y Minera de Chile
SQM
$21.8B
| $2.45M | ﹤0.01% |
33,100
-33,400
| -50% | -$2.8M |
|
2815
PUT
Silicon Laboratories
SLAB
$7.36B
| $2.45M | ﹤0.01% |
11,200
+8,200
| +273% | +$1.77M |
|
2816
CALL
Galicia Financial Group
GGAL
$7.13B
| $2.45M | ﹤0.01% |
48,900
+2,500
| +5% | +$118K |
|
2817
CALL
Equifax
EFX
$20.8B
| $2.44M | ﹤0.01% |
15,400
+1,100
| +8% | +$187K |
|
2818
PUT
RingCentral
RNG
$6.13B
| $2.44M | ﹤0.01% |
62,700
-40,900
| -39% | -$1.65M |
|
2819
CALL
Marriott Vacations Worldwide
VAC
$3.67B
| $2.43M | ﹤0.01% |
23,900
-5,600
| -19% | -$448K |
|
2820
CALL
Mueller Industries
MLI
$14.1B
| $2.43M | ﹤0.01% |
39,600
+16,000
| +68% | +$1.05M |
|
2821
RH
RH
$2.8B
| $2.43M | ﹤0.01% |
14,766
+9,810
| +198% | +$1.35M |
|
2822
Roivant Sciences
ROIV
$25.2B
| $2.43M | ﹤0.01% |
68,630
+36,411
| +113% | +$1.08M |
|
2823
PUT
Clover Health Investments
CLOV
$2.26B
| $2.43M | ﹤0.01% |
463,400
-16,800
| -3% | -$57K |
|
2824
PUT
Amcor
AMCR
$20.9B
| $2.43M | ﹤0.01% |
56,000
+1,500
| +3% | +$59.5K |
|
2825
PUT
Bowman Consulting
BWMN
$735M
| $2.42M | ﹤0.01% |
82,900
+41,700
| +101% | +$1.31M |
|
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.