June 23 (Reuters) - The Nasdaq Composite and Standard & Poor's 500 indexes closed at their lowest levels in more than a week on Tuesday, weighed down by sharp losses in semiconductor stocks, as investors closely monitor rising debt-financed artificial intelligence spending and brace for a more hawkish stance from the Federal Reserve.

The Dow Jones Industrial Average ended trading slightly lower.

Shares of Nvidia and Alphabet fell, while shares of chipmakers Intel, Marvell Technology and AMD also declined.

Thomas Martin, senior portfolio manager at Global, said, "Some of the news that has emerged recently regarding artificial intelligence raises questions about all ongoing expenditures, capital spending, and increasing production capacity for semiconductors."

Concerns about debt-financed spending by tech giants on artificial intelligence also contributed to this sell-off. Elon Musk's SpaceX, which went public this month, joined the growing list of high-cap companies turning to the bond market to raise capital.

SpaceX shares rose after posting losses in the previous three sessions.

Shares of memory chip manufacturers Micron Technology and SanDisk, which were among the best-performing companies on the Standard & Poor's 500 index this year, have fallen.

Micron's earnings report on Wednesday may provide clues about the future outlook for the memory chip and artificial intelligence sector after the sharp rise seen this year.

Preliminary data indicates that the S&P 500 closed down 108.42 points, or 1.45 percent, at 7,364.37, while the Nasdaq Composite fell 578.76 points, or 2.21 percent, to 25,587.84. The Dow Jones Industrial Average declined 44.67 points, or 0.09 percent, to 51,665.32.

Data from the London Stock Exchange Group indicates that traders are increasingly betting on the Federal Reserve raising interest rates twice by December, compared to expectations two weeks ago of only one increase of 25 basis points, as investors take into account the tight monetary policy under the new governor, Kevin Warsh.

Data on the personal consumption expenditures price index, the Federal Reserve's preferred inflation measure, is expected to be released on Thursday.

Investors are monitoring developments in the Middle East after the United States suspended sanctions on Iran for 60 days following the first round of talks under an agreement to end the war.