BlackBerry's stock experienced a 24-hour plunge of 5.32% during the overnight session on Thursday.

The decline followed a significant intraday surge of approximately 23% driven by the company's stronger-than-expected fiscal first-quarter results released earlier that day. BlackBerry reported revenue and earnings that surpassed analyst estimates and raised its full-year guidance, particularly highlighting growth in its QNX embedded software division related to physical AI applications.

Despite the positive earnings momentum, Wall Street maintains a cautious overall rating on the stock, with institutional average target prices remaining significantly below the post-surge price level. This valuation disconnect prompted investors to lock in gains after the sharp single-session advance, leading to the overnight selling pressure and profit-taking activity.