World stocks struggle to find feet after tech-driven rout

LONDON (Reuters) - World stocks attempted to steady on Wednesday following a bruising Wall Street session that wiped $1 trillion off the value of leading U.S. tech shares, while oil prices staged a modest rebound after slumping to one-year lows.U.S. shares were set to open sharply firmer, futures indicated , after two days of losses that wiped out the S&P500's gains for the year and left the tech-heavy Nasdaq index teetering on the brink of falling into the red. Losses have been concentrated in..