CNBC's Jim Cramer on Thursday said the market's had a significant run, and it may be time to ring the register. Cramer reflected on the CNBC Investing Club's decision to sell all of the Charitable Trust's shares of Caterpillar . The trust bought Caterpillar stock in part due to the assumption the Fed would implement several rate cuts, which usually bodes well for industrials. According to Cramer, stock dips for PayPal and ServiceNow may signal losses for other stocks previously bolstered by AI initiatives. "It means you need to do some trimming, purely because your profits don't count until you ring the register."

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Persons: CNBC's Jim Cramer, Cramer, Alex Chriss Organizations: CNBC, Caterpillar . Dupont, Caterpillar, PayPal