Thursday’s sell-off in artificial intelligence stocks served as a reminder of why diversification is essential to staying invested through market volatility, according to CNBC’s Jim Cramer.

Tech shares came under pressure after the Financial Times reported that OpenAI’s annualized revenue was about $20 billion below the amount previously signaled. Oracle tumbled 5.5% and Broadcom dropped 4.35%. Meanwhile, beaten-down stocks outside the AI trade, including Home Depot, rallied as Treasury yields eased following a solid 30-year bond auction. Cramer’s Charitable Trust, the portfolio run by CNBC’s Investing Club, owns shares of Broadcom and Home Depot.

“If you had nothing but artificial intelligence stocks, today would’ve been a nightmare,”…