Wall Street's main indexes hit record closing highs on Friday and posted weekly and monthly gains as Dell results drove tech shares higher, while investors awaited details on a potential U.S.-Iran deal.

President Donald Trump said in a social media post that he would make a final decision on the Iran deal on Friday. Tehran earlier said it was looking for action, not words, when it came to an agreement.

Dell Technologies surged 32.8% after raising its full-year profit and revenue forecasts on Thursday. The tech sector climbed 1.87%, fueled by gains in chip stocks.

Peers Hewlett Packard Enterprise and Super Micro Computer gained 12.6% and 11.6% respectively. Microsoft climbed 5.4%.

The software services index also advanced by over 6%, erasing all losses since January-end, when concerns over AI disruption had weighed on the sector.

The small-cap Russell 2000 index was down 0.6%.

For the week, the S&P 500 gained 1.43%, the Nasdaq Composite rose 2.39%, and the Dow Jones Industrial Average climbed 0.9%. The Russell 2000 index rose 1.72%.

For the month, since April 30, the S&P 500 gained 5.15%, the Nasdaq rose 8.36%, and the Dow climbed 2.78%. The Russell 2000 index rose 4.24%.

The S&P 500 registered its ninth consecutive weekly gain, its longest winning streak since December 2023.

Earlier in the session, all three indexes hit intraday record highs, cruising on renewed optimism around AI and strong earnings growth, despite concerns about the Iran war's impact on inflation and the global economy.