US STOCKS-Wall St lower as weak China data spooks investors
* China Feb exports fall most in more than six years
* Shake Shack plunges after disappointing guidance
* Indexes down: Dow 0.49 pct, S&P 0.67 pct, Nasdaq 0.75 pct (Updates to open)
By Abhiram Nandakumar
March 8 (Reuters) - Wall Street was lower on Tuesday after weak Chinese data rekindled fears of a global economic slowdown led by the world's second-biggest economy.
China's February trade performance was far worse than economists had expected, with exports tumbling the most in over six years. The data weighed on markets worldwide.
"(The China data) suggests the fragile nature of the market's psychology right now," said Scott Brown, chief economist at Raymond James in St. Petersburg, Florida.
"People are still very much nervous. You are now starting to get a bit of a debate about whether things have gotten overdone," he said.
Crude prices shed their gains and were down about 2 percent. Continuación...