AMAT's EPS trend has historically led to positive returns for long-term holders. The backtest data shows that after an earnings change, the stock tends to perform well in the long term, with the 30-day return being 4.05% and the maximum return being 9.21% over 30 days. This suggests that long-term holders may benefit from buying the stock after an earnings event, as the likelihood of a positive return increases over time.