By Twesha Dikshit and Purvi Agarwal (Reuters) -U.S. stock indexes were poised for a muted open on Wednesday, as investors retreated from AI-linked stocks for a second day on concerns over ballooning valuations and parsed through a stronger-than-expected private payrolls report. U.S. private payrolls rebounded sharply in October, the ADP employment report showed, calming some jitters around a weakening labor market. "In the vacuum of government data we have to depend on what we can get and ADP is probably the most reliable source of indicating the health of the labor market right now," said Art Hogan, chief market strategist at B Riley Wealth. Wall Street's main indexes were trading at all-time highs in late October before warnings of a market pullback by U.S. bank CEOs and bearish views fr

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