premise: Share prices rebounded 0.9 percent on the Korea Stock Exchange on Friday, with buying interest emerging on undervalued stocks after a short correction, dealers said.
  "Investors returned to the market after a correction, with individual stocks with respective themes at the centre of buying activity," Cho Hung Securities analyst Choi Youn-Gun said.
  The composite index gained 5.90 points to finish at 693.94.
  Turnover totalled 44.1 million shares worth 627 billion won (704 million dollars). Advancers led decliners 530 to 260 with 117 shares unchanged.
   What was the result of the composite index gaining 5.90 points?
hypothesis: buying interest emerging on undervalued stocks after a short correction