The Theta Tortoise alternatives: newsletters like it

10 newsletters in the NewsletterFIT index cover the same topics as The Theta Tortoise (stock market volatility, VIX index movements and options premium selling). The closest matches are Donald’s Substack, David Cahn's Substack and PRIMED UP Daily. They are ranked by how many topics they share with it, then by publicly shown subscribers.

Updated Nov 13, 2026 · ranked by shared topics, then publicly shown subscribers · methodology

About The Theta Tortoise

Options strategies to improve risk/reward with low-risk quality stocks | Educational articles, webinars, and private Discord community

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  1. 1
    Donald’s Substack3K subscribers

    SubstackWeekly · last post 11 days ago

    From recent posts: Donald's Substack publishes weekly market analysis covering AI infrastructure, semiconductor cycles, and Federal Reserve policy impacts on equity volatility. The publication targets investors seeking technical…

    Likely audience: Portfolio managers

    1 shared topic

  2. 2
    David Cahn's Substack3K subscribers

    SubstackMonthly or less · last post 25 days ago

    From recent posts: David Cahn's Substack publishes weekly essays on AI market dynamics, venture capital trends, and Silicon Valley culture, targeting investors and founders navigating the current startup landscape. The content frequently…

    Likely audience: Venture capitalists

    1 shared topic

  3. 3
    PRIMED UP Daily2K subscribers

    SubstackSeveral times a week · last post 8 days ago

    From recent posts: PRIMED UP Daily publishes daily trading analysis covering stock market volatility, AI sector earnings, and oil prices driven by geopolitical tensions. It targets retail and professional traders seeking technical advice…

    Likely audience: Day traders

    1 shared topic

  4. 4
    atrenzados2K subscribers

    SubstackWeekly · last post 11 days ago

    Aprende cómo los inversores inteligentes multiplican su dinero a largo plazo y evitan errores que cuestan miles. Análisis estratégicos, oportunidades ocultas y decisiones basadas en datos reales. Suscríbete y empieza a…

    Likely audience: investors

    1 shared topic

  5. 5

    SubstackSeveral times a week · last post 2 days ago

    From recent posts: Mark Liera publishes Italian financial newsletters analyzing market volatility, interest rates, and geopolitical events. The content mixes specific market data with broader economic commentary.

    Likely audience: Financial analysts

    1 shared topic

  6. 6

    SubstackSeveral times a week · last post 11 days ago

    El mercado puede parecer complicado... bueno, depende de cómo te lo cuenten.

    Likely audience: investors

    1 shared topic

  7. 7

    SubstackEvery two weeks · last post 6 days ago

    Gestão de patrimônio sob a ótica de quem está do mesmo lado da mesa. Foco em transparência, ética e no modelo fee-based.

    Likely audience: Individual investors

    1 shared topic

  8. 8

    SubstackWeekly · last post 11 days ago

    Market-based weekly outlooks on the US stock market and economy, from the market monetarist perspective with a particular focus on models based upon the equilibrium relationship between the S&P 500 earnings yield and…

    Likely audience: economics readers

    1 shared topic

  9. 9

    SubstackWeekly · last post 9 days ago

    From recent posts: The newsletter publishes analytical essays on retirement planning and investment strategy, focusing on topics like the 4% withdrawal rule, asset allocation, and portfolio survival rates. It also features behavioral…

    Likely audience: retirees

    1 shared topic

  10. 10

    Substacklast post Jun 8, 2026

    Student, United Kingdom 🇬🇧 - Obsessed with everything to do with the stock market and general finance. Significantly outperforming Wall Street and compiling my research articles on stocks I am interested in / own. I…

    Likely audience: retail investors

    1 shared topic

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