Asian stocks slumped, extending the biggest global rout in six months that saw the Dow Jones Industrial Average wipe out this year's gains in one session amid weaker earnings and credit-market concerns.

S&P/ASX 200 5,556.4 -76.51 -1.36%

TOPIX 1,281.3 -8.12 -0.63%

SHANGHAI COMP 2,187.84 -13.73 -0.62%

Skymark Airlines Inc. sank 11 percent after Japan's third-largest carrier said it may go out of business should it have to pay Airbus Group NV a penalty for canceling the purchase of six A380 superjumbos.

Samsung Electronics Co. fell 3.8 percent in Seoul after UBS AG cut its rating on the stock.

Cheung Kong Holdings Ltd slid 4.4 percent in Hong Kong after the property developer controlled by billionaire Li Ka-shing posted profit that missed estimates.