Francesco Castagna
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  • Market Microstructure: Who Really Earns What When You Trade
    February 2026 8 min read

    A practical guide to the real incentives behind exchanges, market makers, and brokers.

  • Myself vs Marco: Is the III Pillar a YES or a NO?
    February 2026 Spreadsheet

    SPY vs Finpension III Pillar. Who wins over the long run when you factor in the Swiss tax deduction?

  • Fees Impact on Investment: Watch Out!
    January 2026 Spreadsheet

    How fees and hidden fees can erode your investment performance, with a real spreadsheet to see the numbers.

  • Opening Auctions, Stop Orders & Gap Dynamics
    December 2025 12 min read

    Inside the mechanics of exchange opening crosses: cumulative curves, matching volume, and tie-break rules.

  • Swiss Health Insurance: Which Deductible Should You Pick?
    November 2025 Spreadsheet

    A practical breakdown of Swiss base health insurance premiums and deductibles. See exactly how much you save depending on your medical expenses.

  • The Time Value of Money
    November 2025 Spreadsheet

    Why a dollar today is worth more than a dollar tomorrow. A short intro to TVM with a spreadsheet.