The stock market does not have a life of its own. In a relatively free economy, success or failure of investment in stocks depends ultimately on the same factors that determine success or failure of any business.
Economic growth results from increasing production, and the money supply is always sufficient to foster exchange. The boom-bust cycle only occurs when production is distorted by a growing money supply.
Some conservatives increasingly reject America's well-established classical liberal traditions of laissez-faire and free choice. These conservatives insist that we need a strong state to "make America great again." They're wrong.