What you'll do with it
Build cap tables, multi-round proformas, SAFE and convertible note conversions, option pool issuance and refreshes, anti-dilution scenarios. Run exit waterfalls, liquidation preferences, participation rights, dividends, option and warrant exercise, multi-class share structures.
Built for two jobs at once. As a scenario-modeling tool, founders test how a round changes ownership, investors model a portfolio company's exit, lawyers walk a client through term sheet implications. As an instructional tool, it teaches the mechanics, every formula visible, every step documented, for people learning cap tables or teaching others.
Edit with AI
Every cell open. Inputs in blue, formulas in black. Built to be customized for your specific situation.
- Context primer, paste into Claude or ChatGPT before any change.
- Prompt guide, ready-made prompts for adding rounds, modeling convertibles, scenario analysis.
- Connect MCP, Claude Desktop or Claude.ai pulls model context automatically.
- Verify before trusting, sanity-check prompts catch wrong references and miscounted shares.
What's in the model
Multiple example sheets, each set up for a different scenario:
- Cap Table, multi-round proforma. Add rounds, convert SAFEs and notes, issue options, run prorata, model dilution.
- Cap Table, with Anti-Dilution, full ratchet, weighted average (broad and narrow), per-investor protection.
- Cap Table, Issuing Equity, single-round example.
- Cap Table, Issuing Options, option pool issuance and refreshes.
- Cap Table, Converting SAFEs and Notes, premoney, postmoney, YC fixed %, MFN.
- Exit Waterfall, liquidation analysis with seniority, pari-passu, participation, dividends, option and warrant exercise.
- Exit Waterfall, with Convertibles, unconverted SAFEs and notes handled in liquidation.
Updated Feb 2025, exit waterfall significantly easier to extend for different share class structures.
Common questions
Is this a cap table tracker?
No. Use a platform like Pulley, Carta, or Ledgy for tracking. Use this for modeling, scenarios, and learning.
Excel or Google Sheets?
Both. All formulas open.
Pay what you want?
Yes. Set the price you think is fair.
Do you teach this?
Yes, free guided learning in the docs and live workshops when scheduled.
Learn cap tables
Guided walkthroughs of equity rounds, convertibles, options, anti-dilution, and exit waterfalls, free, in the docs. Or attend a live workshop.
Start in the docs →
Documentation