We characterize an information cliff in the stock market: the supply of information on aggregate cash flows drops precipitously beyond a one-year horizon, and so does analyst forecast accuracy. We use a generalized state-space model to explore the …

We study when rapid asset price appreciation becomes unsustainable. Analyzing U.S. stock market data from 1926 to 2022, we document that rapid price increases in individual stocks systematically predict subsequent crashes and negative returns. When …