Taiwan's share prices surged Tuesday, with the weighted index, the market's key barometer, increasing 193.8 points, or 2.83 percent, to close at 7,019.75. @@The local bourse opened at 6,834.63 and fluctuated between 7,019.75 and 6,807.62 during the day's trading session. @@A total of 4.41 billion shares changed hands on market turnover of NT$139.06 billion (US$4.23 billion). @@All eight major stock categories gained ground, with paper and pulp issues and machinery and electronics shares both moving up the most at 3.5 percent. Construction shares increased 3.3 percent, banking and financial shares gained 3.2 percent, foodstuff issues advanced 2.6 percent, textile stocks rose 2.2 percent, plastics and chemicals shares increased 1.1 percent, and cement stocks added 0.4 percent. @@Gainers outnumbered losers 2,076 to 466, with 109 stocks remaining unchanged. @@Foreign institutional investors were net buyers of NT$11.53 billion-worth of shares. 