Asian stocks fell as speculation heightened Greece may exit from the single European currency, countering China’s efforts to shore up economic growth by cutting the level of cash banks must set aside as reserves.

Nikkei  8,973.84 +20.53 +0.23%

S&P/ASX  4,297 +11.93 +0.28%

Hang Seng 19,742.39 -222.24 -1.11%

Shanghai Composite 2,380.73 -14.26 -0.60%

Nippon Sheet Glass Co., a glassmaker that counts Europe as its No. 1 market, slid 3 percent in Tokyo.

China Longyuan Power Group Corp., a wind-farm operator, sank 11 percent in Hong Kong after saying it plans to issue new shares.

NCsoft Corp., an online-game maker, dropped 12 percent before the release of a new game by its rival.