The Technology Letter's Tiernan Ray says investors are finally taking profits on AI memory stocks like Micron (MU), SanDisk (SNDK), Western Digital (WDC), and Seagate (STX) among others after parabolic runs. He doesn't believe the trading action is problematic and instead sees investors rebalancing portfolios to find the next big tech trade. Tiernan then outlines his expectations on Qualcomm's (QCOM) upcoming investor day and Nvidia's (NVDA) shareholder meeting.