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IBM shares plunge as AI investment boom triggers record drop

IBM shares tumbled on July 14, posting their biggest one-day fall as the company warned that weak second-quarter results reflected a shift in corporate IT budgets toward AI infrastructure and cybersecurity. IBM said sales of its mainframes and related software were under pressure as customers increased spending on memory chips, servers and storage ahead of price rises. IBM reported second-quarter revenue of $17.2 billion, up 1 percent year on year, below expectations, while infrastructure revenue fell 7 percent.