President Trump's unpredictable trade policies have pushed stock volatility up to its highest level in years, creating substantial uncertainty and, some say, opportunity on Wall Street.

Trump's decision was the latest is a series of market-wrenching moves that have taken place since the president announced a series of tariffs on April 2. Stock market declines and a sell-off in U.S. bonds sparked some fears that the U.S. might be headed for a recession.

All three indexes saw gains on Friday as investors weighed in on the ongoing tariff developments. The trade battle between the US and China is still weighing down the markets.