What (One-liner)

Canvas volume atomic node: fetches N-day volume series and computes current / avg ratio. >2 = spike, <0.5 = contraction.

How to use

price_factor_v1 (NVDA) + volume_factor_v1 (NVDA) → technical_analysis_v1
     (volume-price confirmation — breakouts more trustworthy on high volume)

Core formulas

See frontmatter. Core: ratio = current_volume / mean(prior_volumes).

Assumptions & applicability

Assumptions: yfinance volume is available, shared cache with price_factor.

Applies to: daily volume-price analysis for equities / ETFs / crypto.

Does not apply to: tick-level, tape reading, FX (tick count not notional), OTC.

Known limitations

See frontmatter. Six items: yfinance latency / zero-volume days / FX not applicable / OTC / no buy-sell imbalance / rate limiting.

References

• Blume-Easley-O'Hara (1994) JF — informational content of volume
• yfinance — data source

Golden Test

N/A — data-fetch node.

Changelog

• 1.0.0 (2026-04-21) — First Active