Shares of DaVita Healthcare Partners Inc. (DVA) are up .47 to 118.21.? The shares are trading $6 from the 52-week high.

Today paper bought the DVA Apr 110 puts for .40-.50 5,000 times on different prices.? Average volume is 963 contracts per day in the name.? Open interest is 635 contracts.

The puts were filled on different exchanges and one block of 4302 went up at .50.? The IV is unchanged, which is strange considering the volume of puts traded.

30-day implied volatility is 19%.? 10-day implied volatility is 12%.? 30-day implied volatility is trading above the 10-day historical volatility.

DaVita HealthCare Partners Inc., formerly DaVita Inc., is a provider of dialysis services in the United States for patients suffering from chronic kidney failure, also known as end stage renal disease (ESRD).