A price is only part of the story.
Read the source, the timestamp, and the context.
Check when and where
A quote describes a source at a moment in time. A five-minute cached quote is not a live executable price. Daily exchange rates are reference values, not a broker’s offered rate. Always read the source and timestamp before comparing numbers.
Understand the measures
Market capitalisation is usually price multiplied by circulating supply or outstanding shares. Volume measures traded activity during a period. A percentage change needs a time window to mean anything. These measures describe a market; none predicts the next move.
Recognise missing data
Missing data should not be silently replaced by invented values. Marketwise labels illustrative data and leaves unavailable measures blank. Treat a sample chart as a product demonstration, never as evidence of past or future performance.