You might have noticed an interesting phenomenon in recent weeks. News about the implementation of President Donald Trump's tariffs tends to cause the stock market to sink like a brick. However, even the slightest hint that those tariffs will be relaxed or delayed usually causes stocks to rebound.

Pointing to data showing run-ups in foreign purchases of U.S. stocks before the 1987 crash, the dot-com bubble in 2000, and the 2008 financial crisis, Ed Yardeni wrote in his eponymous research newsletter, "Their buying has a record of being a contrary indicator. They tend to be big buyers right before bear markets."

Protests organized by New Jerseyans angered at the Trump administration's actions are planned Saturday. Here's why, where to find one near you.