US STOCKS-Wall St rallies as S&P seen snapping earnings decline
* Q3 profit at S&P 500 companies rose, not fell: analysts
* UnitedHealth rises most in five years on upbeat forecast
* Netflix surges nearly 20 pct on strong subscriber growth
* Indexes up: Dow 0.56 pct, S&P 0.81 pct, Nasdaq 1.22 pct (Updates to early afternoon)
By Yashaswini Swamynathan
Oct 18 (Reuters) - Wall Street rallied on Tuesday, following a slew of market-beating results from marquee companies that led to the possibility that Corporate America could snap a four-quarter streak of declining profits.
Of the 52 S&P 500 companies that have reported results to date for the third quarter, 81 percent have reported earnings that have topped analysts average estimate, according to Thomson Reuters I/B/E/S.
Now analysts estimate earnings at S&P 500 companies rose 0.2 percent in the quarter, compared with their estimate of a 0.7 percent drop at the start of the earnings season. Profits at these companies last rose in the second quarter of 2015.
Analysts also expect the latest third quarter will be the first since 2014 in which both earnings and revenue of S&P 500 companies increased. Continuación...