US STOCKS-Data, ECB move support stocks; Ukraine eyed
* Jobless claims at three-month low
* Staples, Costco shares down after results
* Crimea's parliament votes to join Russia
* Indexes up: Dow 0.5 pct, S&P 0.3 pct, Nasdaq 0.1 pct
By Rodrigo Campos
NEW YORK, March 6 (Reuters) - U.S. stocks rose in early trading on Thursday, with the S&P 500 at a fresh record intraday high following upbeat labor market data, while traders kept an eye on developments in Ukraine.
In a boost to riskier assets, the euro hit its highest against the U.S. dollar since late December after the European Central Bank kept interest rates on hold, shaking out bets of a cut in rates.
Crimea's parliament voted on Thursday to join Russia and its Moscow-backed government set a referendum for March 16 on the decision, in an escalation of the crisis between Russia and the West over the Ukrainian Black Sea peninsula.
Moscow stocks lost more than 2 percent after the vote in Crimea but pared the losses and were down 1 percent. The ruble weakened 0.4 percent versus the U.S. dollar. A U.S.-traded Russian ETF fell 0.6 percent to $23.52. Continuación...