A long-term trend signal from moving-average crossover.
A Golden Cross occurs when a shorter moving average (often the 50-day) crosses above a longer one (often the 200-day) — a classic long-term bullish signal.
Its opposite, the Death Cross, is the 50-day crossing below the 200-day.
Because both use slow averages, they confirm a regime change after it has begun — they are about the tide, not the next wave.