Reading the chart
The chart plots the market price (TCGPlayer market or CardMarket trend, depending on currency) over the selected window. Hovering or tapping any point shows the exact price on that day. The default window is 90 days; you can switch to 30, 180, or 365.
Major events — set release dates, reprint announcements, tournament-driven spikes — are not annotated automatically, but most patterns become recognizable once you have looked at a handful of charts. Reprint announcements typically show a sharp drop a few days before fulfillment; tournament play causes brief spikes around regional and international events.