Some investors appear to be looking for quick profits in Quicksilver (ZQK) ahead of earnings (due out today after market). Shares of the apparel clothing maker are up 21 cents to $3.70 and June and Nov 5 calls are active, with more than 4,000 traded (combined) and about half of the trades hitting ask-side of the bid-ask spread. Implied volatility is rallying to 150, from about 140 late last week.