Definition
The total revenue opportunity for a product within a specific segment, subdivided into TAM (total), SAM (serviceable), and SOM (serviceable obtainable). The pie chart that looks progressively more depressing as you divide it.
Example Usage
Our TAM is $10 billion, SAM is $100 million, SOM is $5 million—which means we're chasing 0.0005% of the market while acting like we're disrupting an industry.
Origin
Business strategy terminology; formalized in venture capital and strategic planning in the 2000s.
Fun Fact
Most startups overestimate TAM by 5-10x; investors learned to multiply team-provided numbers by 0.1 and assume 0.5% is an ambitious market capture.
Source: Strategic business planning & venture capital frameworks
Related Terms
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See “Addressable Market” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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