Crypto trades every day, all day, so changes are measured over the past 24 hours rather than since a market close. FinVolio shows it in US dollar terms, as exchanges publish it.
Share markets close each day, so their daily change runs close to close. Crypto never closes; exchanges report a rolling 24-hour change instead.
Weekly and longer changes on FinVolio use daily closes at midnight UTC.
Why it matters
Because the window rolls, the 24-hour change at 9am and at 5pm can differ a great deal on a quiet day.