Nvidia’s (NVDA) earnings will be a critical test for the AI trade following the stock’s sluggish start to the year. But even if the chip giant beats Wall Street’s lofty expectations, it doesn’t guarantee the stock will regain its lost momentum. In fact, the road ahead is likely to be bumpy as concerns surrounding China’s AI startup DeepSeek, slowing growth, and export restrictions remain potential overhangs on the stock. And that’s prompting Wall Street to send a clear message: brace for a wild ride. “We’re expecting significant volatility … we’ve seen that play out every time,” Raymond James chief market…