<p>The ongoing debate regarding the rationality of stock markets is framed within two predominant theoretical perspectives: classical and behavioral finance. The classical view posits that stock markets are efficient, with stock prices accurately reflecting changes in expected future cash flows or discount rates, implying no direct relationship between share prices and corporate investment decisions. In this view, stock prices should align with a company's fundamentals, and investment decisions should not be influenced by market conditions. Conversely, the behavioral finance perspective suggests that stock prices can deviate from their fundamental values, and managers may strategically time equity issues to capitalize on periods when stock prices are inflated relative to their intrinsic value. This perspective challenges the notion of market efficiency by highlighting instances where managerial decisions are influenced by short-term market conditions rather than long-term fundamentals. This paper explores these competing frameworks, examining the implications of each for understanding stock market behavior and corporate financial strategies.</p>