US STOCKS-Futures point to higher open after ECB measures
* ECB President Draghi announces bond-buying program
* Verizon, F5 Networks both lower after results
* Royal Bank of Canada to buy City National
* Futures up: Dow 52 pts, S&P 6.75 pts, Nasdaq 9.75 pts (Updates with data, ECB move)
By Ryan Vlastelica
NEW YORK, Jan 22 (Reuters) - U.S. stock index futures pointed to modest gains at the open on Thursday after the European Central Bank announced expanded measures to stimulate the region's economy.
The ECB will buy 60 billion euros worth of assets per month, the central bank's President Mario Draghi said, in a program that will last through September 2016.
The money will include some from existing programs. Countries under a bailout plan, such as Greece, will be included, but with some additional criteria.
Stock index futures were volatile as Draghi spoke, fluctuating between heavy gains and levels below where they traded prior to the announcement. Continuación...