Market Order
A market order is an instruction to buy or sell now at the best available prices — certainty of fill, uncertainty of price.
Definition
Market Order refers to certainty of fill, uncertainty of price. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
Price formation at the venue layer decides whether a signal survives implementation. When certainty of fill, uncertainty of price shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what market order is saying. If certainty of fill, uncertainty of price moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
Measure spread, queue, and impact at your size; paper fills are not a desk edge. Prefer a short written null hypothesis for Market Order: what would falsify the current reading in the next window?
Ask the macro AI about this object
Opens Copilot with Codex + RAG context, or send the object into Alpha Factory intake.