After falling more than 4 percent from recent highs, the S&P 500 has gained back about half of what it lost. But MacNeil Curry, head of global technical strategy at Bank of America Merrill Lynch, says the correction isn't over yet—and he says it won't take a spate of bad news to push stocks lower.
Actually, on Thursday's "Futures Now," he took issue with the whole idea that markets make big moves in response specific datapoints or events.
"I'm not a big believer in catalysts. I think if you go back, if you look historically, most market moves don't transpire off of catalysts," Curry said. "The information as to why a market is trending in the direction it is, is usually not known at the time the trend is beginning. So I don't think we necessarily need a catalyst. I mean, there could be a thousand reasons why an investors says, 'You know what? I want to turn more bearish here.' [And] what drives a market is sentiment."