Share prices closed higher, supported by a rebound on Wall Street overnight, with investors largely shrugging off news that Livedoor president Takafumi Horie has been arrested in conjunction with a probe into the company on suspicion of issuing false information designed to hike the company's stock, dealers said. A slight easing in oil prices today after touching four month highs also aided sentiment, they said. The blue-chip Nikkei 225 Stock Average closed up 288.24 points or 1.5 pct at 15,648.89, off a high of 15,685.14. The broader-based TOPIX index of all First Section shares gained 24.53 points or 1.92 pct at 1,612.43, off a high of 1,615.85. Winners beat losers 1,430 to 199, with 39 issues unchanged. Volume fell to 1.59 bln shares from 1.89 bln yesterday.