# Cost basis

Canonical page: https://synoptiv.com/glossary/cost-basis

What you paid for a position.

Also known as: Cost / share, Cost per share

## Definition

Cost basis is the amount paid to acquire a position — cost per share times shares held. Unrealized profit or loss is the position’s current market value minus its cost basis.

## Related terms

- [52-week high](https://synoptiv.com/glossary/52-week-high)
- [52-week low](https://synoptiv.com/glossary/52-week-low)
- [AI-written analysis](https://synoptiv.com/glossary/ai-analysis)
- [Analysis as-of price](https://synoptiv.com/glossary/analysis-as-of-price)
- [Analysis version](https://synoptiv.com/glossary/analysis-version)
- [Analyst consensus](https://synoptiv.com/glossary/analyst-consensus)
- [ATR](https://synoptiv.com/glossary/atr)
- [Attention](https://synoptiv.com/glossary/attention)

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