By Ryan Vlastelica
NEW YORK (Reuters) - U.S. stock index futures pointed to a higher open on Friday, putting major indexes on track for a second straight weekly advance, though moves were likely to be slight with few market catalysts and many traders still out for the Christmas holiday.
Wall Street has rallied of late, with both the Dow and S&P 500 touching intraday records in Wednesday's shortened session and the Dow eking out a sixth straight daily advance. The S&P rose 5.5 percent over the past six sessions and has notched 51 record closes this year, the most since 1995 and the fourth best ever in terms of record closes.
Recent gains have come on U.S. central bank assurances over interest rate policy and strong economic data, including a bullish read on economic growth earlier this week. While no major economic indicators were due Friday, the market's upward bias looked set to continue. Low volume could increase volatility.
Among the biggest movers premarket was GoPro Inc
U.S. crude futures
Biotechnology stocks will also be in focus following heavy volatility throughout the week. The Nasdaq Biotech index <.NBI> rose 1.6 percent on Wednesday in a partial rebound from the drop of nearly 7 percent over the previous two sessions. Gilead Sciences
For the week, the Dow is up 1.3 percent, the S&P 500 is up 0.5 percent and the Nasdaq is up 0.2 percent. It is the second straight weekly gain for all three, and the ninth positive week in the past ten for the Dow and S&P.
(Editing by Jeffrey Benkoe and Chizu Nomiyama)