Option volatility retreated Friday as a stronger-than-expected reading on the U.S. gross domestic product pushed the stock market higher. The CBOE Market Volatility Index (VIX), which is based on the implied volatility of the S&P 500 options and is used as a gauge for fear in the market, was recently down 6.7% to 14.95. The CBOE Nasdaq Volatility Index, a measure of the implied volatility of the Nasdaq 100, was lower by 0.6% to 17.60. Apple Computer ( AAPL) options were among the most active, with traders concentrating on buying puts. The November 55 puts traded 5,600 times and were up 25 cents. The buyer of the puts is expecting downward pressure on the stock in the near term. The December 50 puts have traded 16,300 contracts, meaning the buyer expects the underlying stock to close below the strike by the expiration. The open interest for the strike coming into the session was 25,078 contracts. Apple shares were falling 39 cents, or 0.7% to $55.02. Ford ( F) had the December 7.50 puts trade more than 13,000 times. The open interest for the strike was 9,500 contracts. With the continued uncertainty surrounding the financial health of U.S. automakers, the buyer of the puts is expecting Ford's shares to fall beneath $7.50 by the expiration. The stock was down a penny at $8.03. Microsoft ( MSFT) options had activity a day after the software giant released its quarterly earnings. The November 25 calls changed hands 24,000 times, and the price was unchanged at 70 cents. The November 25 puts have traded 16,100 contracts and were down 45 cents. The January 27 calls traded 11,000 times. With the stock up 53 cents, or 2.1%, to $25.38, most of the puts are trading much lower. The premium built into the puts prior to the earnings release has been taken out.