Wall Street has a habit of getting overly excited about things, often projecting strong financial performance over a quarter or two into the indefinite future. When this happens, investors sometimes push stock prices to levels that, in hindsight, appear unrealistic.TJX Companies (TJX 0.16%) is currently trading near all-time highs after posting strong fiscal 2024 results. Are investors too optimistic here about the future performance of this discount retailer?TJX had a very good yearIn the fiscal fourth qua ...