CBOE Volatility Index (.VIX) is up .79 to 18.44 and probing its 2011 closing high of 18.47 set Friday. The “fear gauge” is up today, as the S&P 500 loses 4.5 points and trading turns a bit more cautious ahead of tomorrow’s FOMC meeting. A flood of earnings releases along with economic numbers later this week (New Home Sales tomorrow, Durable Goods Thursday, and GDP Friday) add some event risk as well. 7.5 million calls and 6.8 million puts traded so far, which reflects a bit more put activity (relative to calls) than seen in recent weeks. Meanwhile, trading in VIX is light, but seems to reflect concerns about volatility in the short-term as well. 145,000 calls and 42,000 puts traded on the volatility index so far. March 24 calls are the most actives.