World stocks try to find feet after tech-driven rout

LONDON (Reuters) - World stocks steadied on Wednesday and Wall Street was set to open firmer after the previous session saw $1 trillion wiped off the value of leading tech shares, while oil prices staged a modest rebound after slumping to one-year lows.Equity futures for all three U.S. indexes were up 0.4 to 0.7 percent , after two days of losses that wiped out the S&P500's gains for the year and left the tech-heavy Nasdaq benchmark teetering on the brink of falling into the red .Tuesday's..