By David Russell, a reporter at OptionMonster. The following is a compilation of stories that were published yesterday on OptionMonster.com. OptionMonster was co-founded by Deep in the Money Calls author Pete Najarian and uses advanced monitoring systems to detect trading patterns by institutional traders and retail investors. Puts sold heavily as MGM declines: Put activity surged in MGM Mirage ( MGM) as options traders scrambled to sell protection on the gambling stock. Costco draws large bullish trade: A large trader is apparently calling a bottom in Costco ( COST) shares and writing puts to earn a premium. Tracking the VIX:Group One's Jamie Tyrrell says traders are positioning for higher volatility readings this week, followed by a calmer July. AMD ratio spread: Examining a trade that will profit from a limited move higher by Advanced Micro Devices ( AMD). Options bet Brinker is stuck in neutral: Investors sold strangles on Brinker International ( EAT), wagering the restaurant company is going nowhere fast. Host Hotels gets vote of confidence:Host Hotels & Resorts ( HST) is down, but someone thinks the stock doesn't have much further to fall. Pre-market stories:Eight seventy-five on the S&P 500: Guy Adami predicts a decline on the S&P 500 and tells investors to build a list of stocks they want to own. Traders bet Juniper is slowing: Put buyers have stepped up as the latest rally appears to be running out of steam, and Juniper Networks ( JNPR) is just one example of how they're playing this market. Bulls go all in on Monarch Casino:Monarch Casino & Resort ( MCRI) is up 57% in the past month, but traders are still betting with the house. UPS runs into heavy put traffic: Shares of United Parcel Service ( UPS) fell, and one options trader rolled over an existing bearish position.