Today’s tickers: CSC, SGY, JPM & UNH CSC  - Computer Sciences Corp. – Bearish traders snapped up put options on the provider of information technology services straight out of the gate this morning, a sign the already hard-hit stock may have further to fall before the current calendar year concludes. Shares in Computer Sciences Corp. opened sharply lower, one day after the company reduced its fiscal 2012 profit estimate and reported a second-quarter net loss of $2.88 billion. Excluding some items the company earned $0.94 a share in the quarter, more than the $0.68 a share anticipated by analysts, on average. CSC’s shares closed Wednesday’s session down 15.0%, and extended losses on Thursday, falling 8.0% this morning to an intraday low of $25.67. The stock was cut to ‘Underweight’ from ‘Neutral’ at JPMorgan today. Investors positioning for the stock to continue to decline picked up deep out-of-the-money November and December expiry puts that look for the price of the underlying to suffer additional double-digit declines in the near future. Bears populating the front month picked up more than 700 puts at the Nov. $25 strike for an average premium of $0.58 each, and purchased some 400 put options at the lower Nov. $22.5 strike at an average premium of $0.15 a-pop. Options volume on the stock is heaviest, however, in the December expiry. One trader appears to have purchased a block of 5,000 put options at the Dec. $20 strike for a premium of $0.30 each. The put player may profit at expiration next month in the event that CSC shares plunge 23.25% off today’s low of $25.67 to breach the effective breakeven price of $19.70. Finally, Dec. $22.5 strike puts were popular this morning, as well, with some 1,300 of the options having been purchased for an average premium of $0.59 apiece. Computer Sciences Corp. shares are down a staggering 55.0% off the February 8, 2010, 52-week high of $56.51. Options implied volatility on CSC is up better than 40.0% to stand at 69.2% as of 11:50 AM in New York. SGY  - Stone Energy Corp. – The independent oil and natural gas company popped up on our ‘hot by options volume’ market scanner today due to heavier-than-usual activity in its calls. Shares in Stone Energy Corp. are up more than 5.1% this afternoon to stand at $26.25 as of 12:50 PM ET, and it looks like some traders are gearing up for…