* Dow components Verizon, DuPont and United Tech beat estimates
* Yahoo, Chipotle, Yum to report after markets close
* Teva offers to buy Mylan
* Futures up: Dow 61 pts, S&P 8.25 pts, Nasdaq 21.75 pts (Adds details, comment, updates prices)
By Tanya Agrawal
April 21 (Reuters) - U.S. stock were set to rise at the open on Tuesday as a spate of companies beat lowered expectations, helping to ease fears of a disappointing earnings quarter.
Nearly 75 percent of the S&P 500 components that have reported earnings so far have beat analyst expectations, topping the 70 percent average in the last four quarters. However, just 45.8 percent have beat on revenue, compared with the 58 percent average top line beat over the last year.
Dow components Verizon, DuPont and United Technologies beat expectations even as the strong dollar weighed on the results of DuPont and UTX. Verizon shares were up 0.2 percent at $49.47, DuPont rose 0.33 percent to $73.08 and United Technologies added 1.62 percent to $118.40.
The dollar is up almost 9 percent since the beginning of the year against a basket of major currencies. A strong dollar hurts companies with large overseas operations.
"Market is in momentum mode and is taking the path of least resistance. It's still early in the week and things could change with some major tech stock reporting later in the week but there has been the absence of a real negative factor," said Brian Fenske, head of sales trading at ITG in New York.
IBM shares were down 0.37 percent at $165.55 in premarket trading after its earnings exceeded low expectations on Monday as it shed unprofitable businesses to focus on cloud-computing.
Mylan was up 8.8 percent at $74 after Israeli drugmaker Teva made an unsolicited offer for the company for $82 per share, in what could be the drug industry's largest takeover attempt this year. Teva was up 2.6 percent at $64.92.
Earnings expected later on Tuesday include Chipotle, Yahoo and Yum Brands.
Hedge fund manager David Einhorn's Greenlight Capital has taken a new stake in General Motors Co, nearly a year after selling off it position in the automaker, the firm said in a letter to clients on Monday. GM shares rose 0.8 percent premarket.
Futures snapshot at 8:40 a.m. EDT (1240 GMT)
* S&P 500 e-minis were up 8.25 points, or 0.39 percent, with 158,255 contracts changing hands.
* Nasdaq 100 e-minis were up 21.75 points, or 0.49 percent, in volume of 29,397 contracts.
* Dow e-minis were up 61 points, or 0.34 percent, with 32,140 contracts changing hands. (Reporting by Tanya Agrawal; Editing by Savio D'Souza)