Asian stocks were modestly mixed Friday after Wall Street rebounded strongly overnight, with Japan's market recovering from its historic fall in the previous session. Tokyo's Nikkei 225 stock average advanced 187.67 points, or 2.22 percent, to 8,646.12. The index was still far from recouping Thursday's 11.4 percent loss - its biggest one-day percentage drop since the stock market crash of October 1987. Compared to the gyrations this past week, Asian markets seemed to stabilize. Singapore and China shares rose, while Hong Kong's benchmark was flat. Australia's key index fell about 1 percent, while South Korea's was off 2 percent.