US STOCKS-Wall St falls 1 pct on earnings; Apple rallies late
* Durable goods data sharply below expectations
* Caterpillar, Microsoft shares slide after results
* Apple up after the bell on strong revenue growth
* Indexes down: Dow 1.7 pct, S&P 1.3 pct, Nasdaq 1.9 pct (Updates with results from Apple, AT&T and Yahoo)
By Ryan Vlastelica
NEW YORK, Jan 27 (Reuters) - U.S. stocks closed more than 1 percent lower on Tuesday as disappointing results from a number of bellwether companies pointed to weakening conditions, while an unexpected decline in durable goods orders also weighed on sentiment.
The day's losses were broad, with nine of the 10 primary S&P 500 sectors lower on the day, though tech was the biggest drag by far. The group lost 3.3 percent in its biggest one-day drop since November 2011, in the wake of results from industry bellwether Microsoft. Industrial shares fell, led by Caterpillar.
The two names were the biggest decliners on the Dow, but fellow components Procter & Gable and DuPont Co also tumbled.
Microsoft fell 9.3 percent to $42.66 a day after the main engine of its historic earnings power - selling Windows and Office to big businesses - showed signs of waning. Continuación...