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Company and financial metrics
Float explained for investors
Float is the practical share supply investors trade against. It matters for liquidity, short interest, index inclusion, and dilution math.
Get Free API KeyUpdated June 18, 2026
Definition
Float is the portion of shares generally available for public trading. Public float is also disclosed in SEC cover pages and can differ from basic shares outstanding.
Investor read
Float determines how much supply is actually tradable. Low float can magnify price moves, financing impact, index mechanics, and ownership concentration.
Where it appears
- 10-K cover pages and company overview payloads.
- Share-float statement workflows.
- Dilution, ownership, and liquidity analysis.
SEC API workflow
- Pull share float and shares outstanding together.
- Compare float to insider and beneficial ownership.
- Use float when interpreting financing size, warrant overhang, and trading volume.
Common traps
- Confusing float with shares outstanding.
- Ignoring restricted shares or recent issuances.
- Using stale float in dilution or short-interest analysis.
Key takeaways
- Float is tradable supply, not total ownership base.
- It changes the interpretation of volume and dilution.
- Float should be timestamped and sourced.