Substack VS Portfolio Backtest

• Ease of Use
  Substack offers a user-friendly interface that makes it easy for writers to publish and monetize their newsletters.
• Built-in Monetization
  Writers can easily charge readers for subscriptions, allowing for straightforward monetization.
• Direct Audience Connection
  Substack allows writers to build a direct relationship with their audience via email, which can lead to a more engaged readership.
• Discovery and Community
  Features like staff picks and recommendations help writers get discovered by new readers.
• No Upfront Costs
  Substack does not charge upfront fees; instead, it takes a percentage of subscription revenues, making it easier to start.
• Content Ownership
  Writers retain full ownership of their content, giving them more control over their work.

Possible disadvantages

• Revenue Share
  Substack takes a 10% cut of subscription revenues, which can add up for writers with a large subscriber base.
• Limited Customization
  The platform has limited customization options compared to building a custom website or using more flexible CMS options.
• Dependency on Platform
  Relying on Substack means depending on its policies and infrastructure, which could pose risks if the platform changes its terms or features.
• Competition
  As more writers join Substack, it can become challenging to stand out amidst the growing competition.
• Email Deliverability
  Writers may face issues with email deliverability, as some newsletters may end up in spam folders.
• Payment Processing Fees
  Besides Substack's fee, payment processors like Stripe also take a percentage, further reducing net earnings for writers.

• Easy Portfolio Backtesting
  Portfolio Backtest provides a straightforward interface for testing historical performance of investment portfolios, making it accessible to both beginner and intermediate investors who want to evaluate asset allocation strategies.
• Multiple Asset Support
  The platform supports backtesting across a variety of asset classes including stocks, ETFs, and mutual funds, allowing users to construct diversified portfolios and analyze their historical behavior.
• Visual Performance Charts
  The tool provides clear visual charts and graphs showing portfolio growth, drawdowns, and other performance metrics over time, making it easy to compare different allocation strategies at a glance.
• Free to Use
  Portfolio Backtest offers free access to its core backtesting features, which lowers the barrier to entry for individual investors who want to test strategies without committing to expensive subscription-based tools.
• Portfolio Comparison
  Users can compare multiple portfolio configurations side by side, enabling them to evaluate the impact of different asset allocations and rebalancing strategies on risk-adjusted returns.

Possible disadvantages

• Limited Historical Data
  The platform may have limited historical data depth compared to more premium backtesting tools, which can restrict the ability to test strategies over very long time horizons or during specific market events.
• Basic Analytics
  Compared to professional-grade tools like Portfolio Visualizer or QuantConnect, the analytics and risk metrics available on Portfolio Backtest can be relatively basic, lacking advanced measures such as factor exposure analysis or Monte Carlo simulations.
• Limited Customization Options
  The tool may not offer extensive customization for rebalancing frequencies, tax-loss harvesting simulations, or custom benchmarks, which limits its usefulness for more sophisticated portfolio strategies.
• Smaller User Community
  Portfolio Backtest has a smaller user base and community compared to more established platforms, meaning there are fewer tutorials, forums, and shared strategies available for new users seeking guidance.
• Survivorship Bias Risk
  Like many free backtesting tools, Portfolio Backtest may be subject to survivorship bias in its asset database, as delisted or failed securities might not be included, potentially leading to overly optimistic backtest results.

Monetizing Podcasts and Newsletters - Chris Best of Substack and Jonathan Gill of Backtracks

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  a profile link: https://substack.com/@noahpinion. - Source: dev.to / 1 day ago

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  A free comedy newsletter that has nothing to do with technology yet mentions it from time to time. https://substack.com/@yelluwcomedy. - Source: Hacker News / 5 days ago

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Tracking Portfolio Backtest since Jun 2025.