— Inputs

Total companies/people in your market

Globally. E.g., "all SaaS companies with 50-500 employees" = ~80k.

% reachable through your GTM

Realistic share you can actually market and sell to, given your channels.

% you can capture in 5 years

Honest 5-year capture rate. Anything above 5% needs explanation.

Annual contract value (ACV)

What one customer pays you per year. Bottom-up = real, not top-down.

— Output

TAM — Total Addressable Market

—

Total customers × ACV

SAM — Serviceable Addressable Market

—

Reachable customers × ACV

SOM — 5-Year Serviceable Obtainable Market

—

Captured customers × ACV

— Slide V copy (ready to paste)

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Slide V (market) is one of eleven. The DeckFast diagnostic scores all eleven against the criteria institutional investors apply.