Product Hunt logo dark
  • Launches
    Coming soon
    Upcoming launches to watch
    Launch archive
    Most-loved launches by the community
    Launch Guide
    Checklists and pro tips for launching
  • Products
  • News
    Newsletter
    The best of Product Hunt, every day
    Stories
    Tech news, interviews, and tips from makers
    Changelog
    New Product Hunt features and releases
  • Forums
    Forums
    Ask questions, find support, and connect
    Streaks
    The most active community members
    Events
    Meet others online and in-person
  • Advertise
Subscribe
Sign in
Subscribe
Sign in
Double (YC W24)

Double (YC W24)

Design Your Own Stock Index

5.0
β€’1 reviewβ€’

238 followers

Design Your Own Stock Index

5.0
β€’1 reviewβ€’

238 followers

Visit website
Design & invest in your personalized stock index, advised & tax-optimized by Double. No AUM fees, just world-class portfolio tools for everyday investors.
  • Overview
  • Launches1
  • Reviews1
  • Team
  • Awards
  • More
Company Info
double.finance
Double (YC W24) Info
Launched in 2024View 1 launch
Forum
p/double-5
  • Blog
  • β€’
  • Newsletter
  • β€’
  • Questions
  • β€’
  • Forums
  • β€’
  • Product Categories
  • β€’
  • Apps
  • β€’
  • About
  • β€’
  • FAQ
  • β€’
  • Terms
  • β€’
  • Privacy and Cookies
  • β€’
  • X.com
  • β€’
  • Facebook
  • β€’
  • Instagram
  • β€’
  • LinkedIn
  • β€’
  • YouTube
  • β€’
  • Advertise
Β© 2025 Product Hunt
SocialX
Hurree
Hurree β€” The smarter, simpler way to analyze your data
The smarter, simpler way to analyze your data
Promoted

Do you use Double (YC W24)?

5.0
Based on 1 review
Review Double (YC W24)?
Reviews
Helpful
Johannes Danielmeyer
Johannes Danielmeyer

Mentara

β€’21 reviews
Hey Mark and JJ! Double is really impressive!! the way you’re making personalized stock index investing accessible and tax-optimized is fantastic. We’re working on something for founders that could really benefit from insights like yours. Sent you both an email with a bit more context if you’re open to it. Cheers, Johannes
Report
9mo ago
Double gallery image
Double gallery image
Double gallery image
Double gallery image
Double gallery image
Double gallery image
Payment Required
Launch tags:
Fintechβ€’Investingβ€’Finance
Launch Team / Built With
JJ MaxwellMark WaiVitali Zahharov
Linear
Chatgot
sotwe.com

What do you think? …

JJ Maxwell
JJ Maxwell
Double (YC W24)

Double (YC W24)

Maker
πŸ“Œ
Hey hunters! JJ here πŸ‘‹ and I’m very excited to introduce Double today! Double let’s anyone design and invest in their own Stock Index. πŸ› οΈ How Double Works --------------------------------------------------------- - 🧠 Choose Your Strategies: Start by selecting one or more of our 20+ pre-built direct indexed strategies, focusing on broad markets like the S&P 500, specific sectors, industries, themes, or even custom groupings (think: all publicly traded YC companies) - βš™οΈ Customize, Combine and Make Your Own: We let you easily deeply customize your strategies, tilting towards or against your hunches on a stock or sector level. You can also create your own baskets using our stock and ETF screener. - πŸ€– Tax-Optimized Automation: Sit back as Double handles the complexities of trading, employing tax-aware rebalancing and tax-loss harvesting (if eligible) with the aim of maximizing your after-tax returns. We continuously monitor your portfolio, considering factors like market drift, tax implications, and transaction costs before making any trades. - πŸ”€ Flexible Portfolio Adjustments: Easily modify your investments all at once or gradually over time. Dollar-cost averaging is built in, allowing you to invest consistently regardless of market conditions and reduce timing risks. πŸ’‘ Common Use Cases --------------------------------------------------------- - πŸ’Ό Big Tech Employee Seeking Diversification: If you work at a major tech company, use direct indexing to remove your employer's stock from your portfolio and even reduce the overall weighting of the tech sector. - ⏸️ Temporary Risk Reduction: Easily schedule recurring portfolio changes to shift your investments into a less volatile strategy for a specific period, like the next six months. - 🎯 Individual Stock Picks: Believe in the continued success of ZYN or have a basket of favorite fast-casual restaurants? Allocate a portion of your portfolio to a custom basket of stocks. Our built-in backtesting within the stock screener even lets you see how your basket would have performed historically. πŸ’° Cost-Effective Investing --------------------------------------------------------- - πŸ’΅ Worried about high fees? We charge a nominal $1 per month, and your first six months on the platform are completely free! πŸš€ Our Motivation --------------------------------------------------------- - 🏦 Traditionally, sophisticated financial tools like direct indexing and tax-loss harvesting were only accessible through high-priced financial advisors. While DIY options existed, they often involved tedious spreadsheets and manual trade execution. Double was created to democratize access to advanced portfolio optimization tools, making investing both powerful and user-friendly. πŸ’¬ We're excited to hear your thoughts and welcome any questions you may have!
Report
11mo ago
Nick Bradford
Nick Bradford
Ellipsis (YC W24)

Ellipsis (YC W24)

this is the investment app i've always dreamed about! One question though - for people who work in industries where they have to report individual stock trades but not ETF trades (for regulatory reasons), is it still possible to use Double?
Report
11mo ago
JJ Maxwell
JJ Maxwell
Double (YC W24)

Double (YC W24)

Maker
@nsbradford So our account is treated as discretionary, meaning we have the discretion to make trades on your behalf. I believe this is usually the distinction that firms relay on for whether things need to be cleared before trading or not. Wealthfront for example, despite holding individual stocks in their direct index portfolio, in my experience has usually been allowed by companies without the need to report every trade. But anyone in this scenario should check with their compliance team.
Report
11mo ago
Nick Bradford
Nick Bradford
Ellipsis (YC W24)

Ellipsis (YC W24)

@jj_maxwell thanks for thr clarification, excited to give it a try!
Report
11mo ago
Giuseppe Della Corte
Giuseppe Della Corte
panda{Β·}etl (YC W24)

panda{Β·}etl (YC W24)

@jj_maxwell the tax optimization and the custom YC companies are two nice details. Congrats and good luck with the launch!
Report
11mo ago
JJ Maxwell
JJ Maxwell
Double (YC W24)

Double (YC W24)

Maker
@gdc Thank you, appreciate the support.
Report
11mo ago