Crypto has no weekend in the formal sense and a very real one in practice. Institutional desks step back, banking rails slow, and a large fraction of the capital that normally makes markets is less responsive than it is midweek.
The book thins. Everything else follows from that.
Moves go further
The same order size that barely registers on a Wednesday can move price meaningfully on a Sunday morning, because there is less resting liquidity to absorb it. This is not a signal about conviction; it is a signal about depth.
Weekend moves therefore need discounting. A percentage move that would be significant midweek may represent far less actual capital, and the retracement when normal liquidity returns is common enough to be a pattern.
Cascades are worse
Liquidations are indifferent to the calendar, so forced selling can arrive into the thinnest book of the week. That is the mechanism behind a disproportionate share of the most violent moves in crypto history — not weekend news, but weekend depth.
If you carry leverage through a weekend, the relevant question is not what might happen but what the book looks like if something does.
The Monday effect
When normal participants return, price frequently moves back toward where the weekend started. Not always, and not reliably enough to trade mechanically, but often enough that a weekend move should be treated as provisional until midweek liquidity has confirmed it.
What to watch
Depth relative to its weekday average, rather than in absolute terms. And open interest through the weekend: if it held steady through a large move, the positioning that drove it is still there and unresolved.