Cramer said that although markets are not empirically efficient in every case, the efficient markets hypothesis remains a useful idea. He described it as a rough guideline rather than an ironclad law, one that can point investors in the right direction. He said markets try to be efficient and aspire to efficiency.
He explained that the speed at which news is absorbed varies. When a company reports a fantastic quarter, the stock spikes immediately because that kind of data gets baked in very quickly. By contrast, when the Federal Reserve changes policy, the news takes longer to be reflected in the averages. Cramer cited the Fed's signal in late 2023 that it was probably done raising interest rates, saying that baking such news in can take months. He also noted that even when the Fed abruptly changed course at the end of 2018, it took weeks for the change to work through the averages.
Cramer said stocks that benefit from lower rates can rise instantly, but it can take days, weeks or months for the average to fully reflect a new normal because portfolio managers need time to reposition large blocks of stock. No hedge fund or mutual fund can buy or sell them all at once, though a new equilibrium is eventually reached.
He offered a shorthand version of the idea: when there is a widely held consensus about something, positive or negative, investors should assume the stock market is already discounting it. Examples he gave included a euphoric view of the job market and widespread worry about a temporary Fed-mandated slowdown, both of which he said are probably baked into prices. When investors fear a bad earnings season, he said stocks may not be slammed by disappointing numbers because the disappointment is already anticipated.