Shares of Dell and HP fell on Wednesday after the personal computer makers issued forecasts that cast doubt on a market recovery driven by artificial intelligence-enabled PCs.

Chairman John Idol takes over the CEO spot from Cedric Wilmotte, who is leaving the organization as part of a cost-cutting initiative. HP Inc (HPQ) reports a 2% revenue increase and gains in PC market share, while navigating cost pressures and competitive challenges.

HP Inc. gave an outlook for profit in the current quarter that fell short of estimates, suggesting a setback in the personal computer market’s recovery from a yearslong slump.

HP forecast its first-quarter profit below Wall Street expectations on Tuesday, signaling persistent choppy demand in the personal computers market and sending the company's shares down 8% in extended trading.