US STOCKS-Wall St set to open lower ahead of housing data
* Endo up after agreeing to buy Par Pharmaceutical
* Altera, Ann rises on possible deals
* S&P closed at record-high on Friday
* Futures down: Dow 22 pts, S&P 4.25 pts, Nasdaq 15.25 pts (Adds details, comment, updates prices)
By Sweta Singh
May 18 (Reuters) - U.S. stocks were set to open lower on Monday after a stream of weak economic data over the last week muddied the outlook for U.S. interest rates, making investors wary of taking big positions.
The market will get another clue on the state of the economy at 10 a.m. ET (1400 GMT) when the National Association of Homebuilders releases its monthly homebuilder confidence index.
If the index does not rise, as expected, stocks could rally, said Adam Sarhan, chief executive of Sarhan Capital in New York.
The U.S. economy is struggling to rebound strongly enough for the Federal Reserve to raise interest rates before September, analysts have said. Continuación...