Asian stocks rose, with the regional benchmark index poised for a three-week high, after the Bank of Japan maintained unprecedented asset purchases and boosted lending programs. Chinese shares fell as the central bank drained liquidity from the financial system.

Nikkei 225 14,843.24 +450.13 +3.13%

S&P/ASX 200 5,392.82 +9.93 +0.18%

Shanghai Composite 2,115.14 -20.28 -0.95%

Nissan Motor Co., a carmaker that gets about 80 percent of sales outside Japan, increased 2.1 percent in Tokyo as the yen slid.

BHP Billiton Ltd., the world’s biggest mining company, rose 2 percent in Sydney after first-half profit jumped more than expected.

Industrial & Commercial Bank of China Ltd. fell 0.8 percent in Hong Kong, pacing declines among Chinese lenders.