* AT&T rises on strong quarterly results * Southwest Airlines rises on smaller-than-expected loss * U.S. weekly jobless claims decline further * Indexes down: Dow 0.89%, S&P 500 0.78%, Nasdaq 0.74% (Adds prices to mid-afternoon) NEW YORK, April 22 (Reuters) - U.S. stocks dived on Thursday on reports President Joe Biden planned to almost double the capital gains tax, but analysts said the news was an excuse to take profits in a listless market ahead of big tech’s earnings next week. The three main indexes on Wall Street were trending slightly lower when Bloomberg reported Biden also planned to raise income taxes for the wealthy, a proposal some said would be hard to pass in Congress. “If it had a chance of passing, we’d be down 2,000 points,” said Thomas Hayes, chairman and managing member at hedge fund Great Hill Capital LLC. Biden will propose raising the marginal income tax rate to 39.6% from 37% and nearly double taxes on capital gains to 39.6% for people earning more than $1 million, sources told Reuters. Markets have been listless as investors await guidance from Microsoft Corp, Google parent Alphabet Inc and Facebook Inc when they report earnings next week, Hayes said. “Until we get out of this information vacuum the market is going to be generally directionless,” he said. “All that really matters moving forward is what are those big tech earnings next week?” Earlier in the session the S&P 500 healthcare sector hit a fresh record high while industrials were the biggest gainers. American Airlines Group Inc and Southwest Airlines Co reported smaller-than-expected quarterly losses, signaling a revival in travel demand. Both shares fell, with American down 3.3% and Southwest 0.2%. Investors welcomed data showing the number of Americans filing new claims for unemployment benefits last week dropped to a fresh one-year low. The Labor Department report suggested layoffs were subsiding and expectations were rising for another month of blockbuster job growth in April. Separately, data showed U.S. home sales fell to a seven-month low in March, as an acute property shortage boosted prices and made owning a house more expensive for some first-time buyers. The speedy U.S. vaccination rollout has improved the economic outlook as people plan summer vacations or spending on leisure activities, while giving a solid start to the first-quarter earnings season. However, a surge in COVID-19 cases in India and elsewhere in Asia has kept investors anxious, Hayes said. The Dow Jones Industrial Average fell 0.89%, the S&P 500 lost 0.78% and the Nasdaq Composite dropped 0.74%. Chipmaker Intel Corp is expected to post a drop in first-quarter revenue later in the day, with analysts looking forward to updates on its U.S. manufacturing plants and chips for automakers amid a global microchip supply shortage. Its shares fell 1.1%. Declining issues outnumbered advancing ones on the NYSE by a 1.40-to-1 ratio; on Nasdaq, a 1.02-to-1 ratio favored advancers. The S&P 500 posted 83 new 52-week highs and no new lows; the Nasdaq Composite recorded 83 new highs and 16 new lows. (Reporting by Herbert Lash, additional reporting by Shivani Kumaresan and Shreyashi Sanyal in Bengaluru; Editing by Anil D’Silva and Richard Chang)