US STOCKS-Futures tick up after rally, indexes set for strong week
* Indexes on track to break three-week streak of losses
* GE shares edge up after results, Starbucks rallies
* Oil higher, but on track for another negative week
* Futures up: Dow 34 pts, S&P 2 pts, Nasdaq 3.5 pts
By Ryan Vlastelica
NEW YORK, Jan 23 (Reuters) - U.S. stock index futures edged up on Friday, following a sharp rally in the previous session that returned the S&P 500 and Nasdaq to positive territory for the year and put major indexes on track to break a three-week streak of declines.
* Thursday's advance came after the European Central Bank detailed a bond-buying program to boost the region's sagging economy and fight deflation. The program was larger than expected and will last through September 2016.
* The rally took the S&P 500 above its 50-day moving average, a metric of near-term momentum that the benchmark index hasn't closed above since Jan. 8.
* With the ECB stimulus details known, U.S. corporate earnings will likely be the primary driver of trading over the next few weeks. With 15 percent of S&P 500 companies having reported, 73.7 percent have topped earnings expectations while 53.9 percent have beaten on revenue, according to Thomson Reuters data. That compares with the long-term average of 63 percent for earnings and 61 percent for revenue. Continuación...