Wall Street rallies ahead of Christmas WSOC TV [Video]

Tech companies led a broad rally for U.S. stocks Tuesday, a boost for the market in a holiday-shortened trading session.

The S&P 500 rose 0.8% in midday trading. The Dow Jones Industrial Average was up 273 points, or 0.6%, as of 12:18 p.m. Eastern time. The tech-heavy Nasdaq composite was up 1%.

Chip company Broadcom rose 2.9%, while semiconductor giant Nvidia, whose enormous valuation gives it an outsize influence on indexes, rose 0.8%. Super Micro Computer jumped 5.8%.

Tesla climbed 5.1%, one of the biggest gains among S&P 500 stocks. Amazon.com rose 1.6%

American Airlines slipped 0.1% after the airline briefly grounded flights nationwide due to a technical issue.

U.S. Steel rose 1.1% a day after an influential government panel failed to reach consensus on the possible national security risks of the nearly $15 billion proposed sale to Nippon Steel of Japan.

NeueHealth surged 68.9% after the health care company agreed to be taken private in a deal valued at roughly $1.3 billion.

Treasury yields rose …