How to read the price chart

Every ticker and ETF page has a price chart with range tabs across the top - 1D, 5D, 1M, 6M, YTD, 1Y, 5Y, and ALL. Switching ranges doesn't just zoom the same data in and out; it asks for a different slice of history, so a 1-day chart shows price movement through the trading day while a 5-year chart shows one point per week rather than every single trade - otherwise five years of minute-by-minute data would be unreadable (and slow to load).

The line is colored green when the price is up over the period you're looking at, and red when it's down - but the color is never the only signal. The exact dollar and percent change is always printed as text right above the chart, so you're never guessing at a shade of green. Hover (or tap) anywhere on the line to see the exact price and date at that point.

The one thing a price chart genuinely can't tell you is what happens next. A stock that's up 20% over the past year could keep climbing or could give it all back tomorrow - past price movement describes what already happened, it doesn't predict what's coming. It's most useful for context ("has this been a calm or a volatile year?") rather than as a forecast.