Abstract: | The authors find that financial markets have real effects on corporate decisions but that, unfortunately, some temporary market enthusiasm, unrelated to firm intrinsic value, may cause management to make value‐destroying decisions as the result of random and uninformed stock market volatility. In particular, they are prone to making bad decisions after stock market overreactions to “surprise” earnings announcements. This study shows a positive effect of greater long‐term ownership on French listed firms. Fundamental investor ownership reduces the degree of market mispricing which serves long‐run shareholder value maximization. A fundamental investor is one that, on average, hold his shares for at least two years, is in the top quartile of a firm ownership, and has an active allocation strategy. They are about 8% of all investors. Compared to non‐fundamental investors, fundamental investors hold their positions on average three times longer and have positions 1.5 times larger. Fundamental investors are more present in firms which have more liquid stocks, which pay dividends, and which are relatively poorer performers and have relatively lower market‐to‐book than their industry peers. |