The Nasdaq led gains among the main U.S. stock indexes on Monday as Microsoft climbed on news that ousted OpenAI head Sam Altman will join the software giant.

It comes as investors awaited more clues on when the Federal Reserve might begin cutting interest rates.

Microsoft’s shares touched an all-time high and were last up 1.6% after CEO Satya Nadella said Altman is set to join the company to lead a new advanced AI research team.

The S&P 500 information technology sub-index housing the stock was the top sectoral gainer, up 0.9%.

Most other megacap stocks, including Nvidia and Apple, also edged higher.

Wall Street’s main indexes have staged a stellar rebound in November, posting gains for the third week in a row on Friday as evidence of easing U.S. inflation supported bets that the Fed was done raising interest rates.

High level

The benchmark S&P 500 is now less than 2% away from its highest level this year reached in July.

“This is traditionally a very light week. There’s really not much in the way of economic news and I don’t think we could see much of a change between now and the end of the year,” said Joe Saluzzi, partner and co-founder at Themis Trading in Chatham, New Jersey.

“The Fed seems to be done. Everyone’s predicting all the economic numbers that we saw last week will certainly support the thesis (that) they don’t need to raise (rates) any more.”

Traders have nearly fully priced in the likelihood that the Fed will keep interest rates unchanged in December, and have started pricing in rate cuts as soon as March, according to the CME Group’s FedWatch tool.