Asian stocks fell, extending the regional gauge’s biggest weekly decline since August, as forecasts from Canon Inc. to Posco disappointed investors.

Nikkei 225 14,088.19 -398.22 -2.75%

Hang Seng 22,691.15 -144.67 -0.63%

S&P/ASX 200 5,386.35 +13.46 +0.25%

Shanghai Composite 2,132.96 -31.37 -1.45%

Canon retreated 1.6 percent in Tokyo as the camera maker trimmed its earnings outlook.

Posco, South Korea’s biggest steelmaker, sank 0.5 percent in Seoul after cutting its 2013 sales forecast.

LG Electronics Inc. lost 3.4 percent after its third-quarter operating profit and sales missed estimates.

AMP Ltd. tumbled 2.8 percent in Sydney after Australia’s largest life insurer and pension manager said fourth-quarter operating profit will fall by as much as A$65 million ($62.5 million).