Moving Averages, the 50/200-Day, and the Golden Cross
Updated June 25, 2026
A moving average smooths out day-to-day price noise to reveal the underlying trend. The 50-day and 200-day simple moving averages (SMAs) are the two most-watched lines in the market, and the relationship between price and these averages is one of the cleanest definitions of 'uptrend' versus 'downtrend' there is.
What a simple moving average is
A simple moving average is just the average closing price over the last N days, recalculated each day. The 50-day SMA reflects the intermediate trend; the 200-day SMA reflects the long-term trend. Because they lag price, they don't predict turns — they describe the trend that's already in place.
Price versus the averages
- Price above a rising 50-day and 200-day SMA is a clean uptrend — the most favourable backdrop for long setups.
- Price below both declining SMAs is a clean downtrend.
- Price caught between the two is transitional — momentum and other indicators break the tie.
Golden cross and death cross
A golden cross is when the 50-day SMA crosses above the 200-day SMA — a widely watched signal that the intermediate trend has turned up through the long-term trend. A death cross is the reverse: the 50-day crossing below the 200-day. These are lagging signals (the cross confirms a move that's already underway), and a fresh cross within the last few days carries more weight than one that happened weeks ago.
A subtle but important point: a stock can be in a strong long-term uptrend (great one-year return) yet be trading below both moving averages right now because it's pulled back. Trailing performance and current trend are different things — which is exactly why StockTracker AI looks at the standing relationship between price and the 50/200-day averages, not just past returns, when it sizes its conviction.
Frequently asked questions
What is a golden cross?
A golden cross is when a stock's 50-day moving average crosses above its 200-day moving average, signalling that the intermediate trend has turned up through the long-term trend. It's a lagging confirmation, strongest when fresh.
What does it mean when a stock is below its 200-day moving average?
It generally means the long-term trend is weak or negative — price is below its one-year smoothed average. It doesn't guarantee further downside, but it's a headwind that argues for caution on the long side.
Which is better, the 50-day or 200-day moving average?
Neither is 'better' — they measure different horizons. The 50-day tracks the intermediate trend and reacts faster; the 200-day tracks the long-term trend and is slower. The relationship between them (and price) is what matters.