market-sizing-tam-estimator

To estimate TAM, SAM, and SOM for an Australian market, apply dual top-down and bottom-up methods. This derives figures from global data adjusted for Australian segments and builds from addressable customers, pricing, and purchase frequency to produce convergent result ranges.

The best way to calculate market size is triangulating top-down and bottom-up approaches to reveal convergent or divergent results. You document every assumption, present estimates as ranges with confidence bands, and generate a structured market-sizing report.

Run sensitivity analysis on TAM estimates by documenting every assumption and adjusting variables like addressable customers and pricing. The process outputs market size ranges with confidence bands to support decision-making.

Yes, you can size a market opportunity using only bottom-up inputs by building estimates from addressable customers, pricing, and purchase frequency. However, triangulating with top-down global data adjusted for Australia provides more reliable convergent results.

You need a reusable calculator script to process market inputs and generate TAM, SAM, and SOM ranges. Running the script produces a structured market-sizing report with confidence bands and sensitivity analysis for ongoing updates.

Top-down and bottom-up market sizing estimates diverge when global market data adjusted for Australia conflicts with bottom-up addressable customer and pricing assumptions. Triangulating both methods with documented assumptions and sensitivity analysis highlights these discrepancies.