US-based online retailer Amazon said in a regulatory filing daily deals company LivingSocial, in which it owns a 31% stake, posted a $558m loss in 2011.

The daily deals sites financials were revealed, as the company is chasing a $400m round, of which it raised $176m in December 2011.

Amazon added in the 10-K filing LivingSocial had revenues of $245m during the year, with $686m in operating expenses and $117m in other expenses. Amazon invested $175m in the company in December 2010.

US-based on-line retailer Amazon was joined by JP Morgan and venture firm Lightspeed Ventures in the most recent December round, according to…