Zero print

What it is

A zero print is a price level where one side of the bid/ask volume is zero — either no contracts traded at the bid, or no contracts traded at the ask. In practice, zero print and single print refer to the same footprint structure: a one-sided level where the auction never completed on both sides.

Some traders use "single print" to emphasise that the level was traded only once on one side (a narrow event), and "zero print" to emphasise the absence of liquidity on the other side (the structural void). The math underneath is identical: a footprint cell with a zero on one column and non-zero on the other.

The reason these levels are tracked at all is that they represent unfinished auctions. The market printed through a price quickly enough — or aggressively enough on one side — that the opposite side never showed up to take the trade. That asymmetry tends to attract price back.

Why it matters

Zero prints function as magnet levels and as reaction zones. The mechanism is straightforward: at a zero print, there's a known imbalance in completed trades, and the market tends to re-test those zones to complete the auction on the missing side.

Practical uses:

• Track recent-session zero prints as expected reaction levels for the next session.
• Use intraday zero prints as short-term targets, especially when they sit between current price and a structural level.
• Treat zero-print zones (clusters of adjacent zero prints) as wider expected-reaction bands rather than precise lines.

Zero prints work best as context, not as standalone signals. They tell you where a reaction is plausible; you still need price action confirmation at the level.

How traders use it on Sierra Chart

Sierra Chart traders typically read zero prints from Numbers Bars footprint cells, where the zero side is immediately visible in the per-price grid. Manual annotation with horizontal rays at significant zero prints is common; automated detection studies extend that by flagging and persisting the levels across the session.

The most actionable zero prints are RTH-session prints on liquid futures, formed at or near structural levels. Overnight zero prints in thin liquidity often clean themselves out quickly and carry less weight as forward-looking levels.

Common patterns / pitfalls

• Many zero prints get filled quickly within the same session. The interesting ones are those that survive into the next session.
• A zero print right at a prior swing high or low is high-quality. A zero print mid-range is usually low-quality.
• On wide-spread or thin instruments, zero prints can be a data artifact rather than real one-sided flow.
• Stacking matters. A single isolated zero print is weaker than a column of adjacent zero prints spanning multiple ticks.
• Don't trade zero prints in isolation. Use them as a level filter on top of an existing setup.

Related SCS studies

Zero Print Zones automates detection of persistent zero-volume regions and renders them as zones rather than lines, removing the manual annotation work. Single Print and Gap covers the closely related single-print case with auto-removal once price revisits.