GlossaryBy Sverre MoeUpdated 2026-07-21
What is 50-Day Average Dollar Volume?
What is 50-Day Average Dollar Volume?
50-day average dollar volume is the trailing 50-session average of a stock's daily dollar volume, closing price times shares traded, averaged rather than measured on any single day. It is a liquidity proxy: a name can spike to $5M in dollar volume for one news-driven session and still be genuinely illiquid the other 49 days, while a stock that sustains $5M a day for 50 straight sessions has real, tradeable depth.
Averaging over 50 sessions specifically smooths out one-off volume spikes, an earnings report, a single viral mention, that would otherwise let a thinly-traded name pass a same-day dollar-volume filter on its best day and then trade nothing the rest of the time.
How tickerstance uses it
It requires at least 50 sessions of price history to compute and returns null otherwise, so brand-new listings do not get a misleading reading from a short, volatile sample. The Volume Surge shortlist uses it as a secondary eligibility gate alongside the standard close-at-or-above-$5 filter, in place of the same-day dollar-volume threshold the /shortlists hub and /data use instead.
As of the July 20, 2026 close, the Volume Surge shortlist's detail page reported 3,296 eligible tickers under a close-at-or-above-$5 and 50-day-average-dollar-volume-at-or-above-$1M gate, restricted to common stock and ADR ticker types. That is a different, stricter question than TickerStance's other universe count that same day: /data's 3,278, gated on that same day's dollar volume with no averaging. See the universe entry for the full breakdown.
Related
- Universe
The full breakdown of why "eligible universe" counts differ by page.
- RVOL
A same-day dollar-volume ratio, the opposite time horizon from this 50-day average.
- Shortlists
Rosters that use this gate as a secondary eligibility filter.