Quiksilver (ZQK) reported a big Q1 miss back in June due to revenue and gross margin pressure. This prompted analysts to revise their estimates significantly lower for Quiksilver, sending the stock to a Zacks Rank #5 (Strong Sell).Although shares of Quiksilver have fallen considerably since the Q1 report, the stock still does not look a value at 36x forward earnings. Investors should consider avoiding the stock until its earnings momentum turns around. Quiksilver produces and distributes apparel, footwear and accessories. Its three flagship brands are Quiksilver, Roxy, and DC. The company was founded in 1976 and is headquartered in Huntington Beach, California.Second Quarter ResultsQuiksilver delivered disappointing first quarter results in June. Earnings per share came in at -$0.12, badly missing the Zacks Consensus Estimate of +$0.04. It was also below a loss of 1 cent in the same quarter last year.Net revenues declined 5% year-over-year to $458.7 million, well below the consensus of $506.0 million. Revenue fell in all three of its flagship brands, with Quiksilver down -10% in constant currency. Geographically, sales were strongest in the Americas and weakest in the EMEA region.The gross profit margin declined 320 basis points to 46.0% of revenue due in part to increased discounting.Estimates FallingAnalysts have been revising their estimates lower for both 2013 and 2014 over the last several weeks, which has sent the stock to a Zacks Rank #5 (Strong Sell).The Zacks Consensus Estimate for 2013 is now -$0.15, down from +$0.14 just 90 days before. The 2014 consensus is currently +$0.21, down from +$0.35 over the same period.You can see the drop in consensus estimates in the following chart:Premium ValuationShares of Quiksilver are down more than -30% since late May. Despite this, the stock doesn't look like a value here. Shares currently trade around 36x 12-month forward earnings (assuming those estimates don't fall any further), which is a premium to the industry median 17x. And its price to book ratio of 1.7 is above its historical median of 1.6.The Bottom LineWith falling earnings estimates and premium valuation, investors should consider avoiding this Zacks Rank #5 (Strong Sell) stock until its earnings momentum turns around.Investors still interested in the 'Textile - Apparel' industry may want to take a look at Hanesbrands (HBI) or Michael Kors (KORS), which both carry a Zacks Rank of 1 (Strong Buy).Todd Bunton is the Growth & Income Stock Strategist for Zacks Investment Research and Editor of the Income Plus Investor service.