Overview
Tick size controls the price granularity of everything on the chart — clusters, DOM rows, TPO letters — and choosing the right one matters as much as any other single setting on the platform.
What's covered
- What tick size controls — Every price-based aggregation — cluster rows, DOM rows, and TPO letters — snaps to the tick grid you set. Too fine a tick spreads volume thin across many rows; too coarse a tick merges meaningfully different price levels.
- Pick a tick size that fits the instrument — There's no single correct tick size — it depends on the instrument's price and volatility (the DOM & Tape video gives a concrete example: sticking to 1–2 ticks unless scalping heavily, with something like 16 ticks being a more typical working size on a liquid BTC pair).
- Change the tick size on the fly — Tick size can be changed directly from the DOM's top bar or from chart settings, and the effect is immediate — rows/levels re-aggregate to the new grid without needing to reload the chart.
- The detail-versus-noise trade-off — Coarser ticks reduce visual noise and make patterns like stacked imbalances or POC location easier to read at a glance, but can also mask genuine price-level detail — revisit this setting per instrument rather than reusing one global default everywhere.