A bearish chart pattern known as a “death cross” is close to appearing in bitcoin’s chart.

The development is generating buzz Friday, and it’s illustrated in the above graphic — which is our Need to Know column’s chart of the day.

The “death cross” pattern occurs when the 50-day moving average drops below the 200-day moving average. The idea is that this cross marks the spot where a shorter-term decline is turning into a longer-term downtrend.