Quantora first measures the move - how big, and how unusual versus the stock's own volatility - then asks an AI for the most plausible drivers and what to watch. The size is a fact from the tape; the explanation is a hypothesis, and it says so.
Moves and the "sigma" figure (how many daily standard deviations the recent move represents) are computed from daily prices. The written explanation is AI-generated and reasons about likely categories of drivers - it does not have a live news feed for the exact day and may be out of date, so treat it as a starting hypothesis to verify, not fact. Educational only - not investment advice.