The announcement of a 51 cents per share dividend by Dine Brands Global (DIN) is significant for investors, as it directly impacts shareholder returns. The stock is expected to trade lower on the ex-dividend date to reflect the payout, which is a common occurrence in the market. However, this adjustment is typically short-lived and does not indicate a long-term trend in the stock's performance. Therefore, the short-term impact on DIN's stock price is considered neutral.