http://www.stoxx.com/indices/index_information.html?symbol=V2TX

http://www.boerse-frankfurt.de/EN/index.aspx?pageID=44&NewsID=252

EURO STOXX 50® Volatility (VSTOXX®)

The VSTOXX Indices are based on EURO STOXX 50 realtime options prices and are designed to reflect the market expectations of near-term up to long-term volatility by measuring the square root of the implied variance across all options of a given time to expiration. The VSTOXX Indices are part of a consistent family of volatility indices: VSTOXX based on the EURO STOXX 50; VDAX-NEW based on the DAX; and VSMI based on the SMI.

Overview  Chart  Components  News  Data Date: 23 Dec 2011 Time: 11:29:45 10 11 12 13 14 15 16 17 28.40 28.50 28.60 28.70 28.80 Symbol V2TX Calculation Realtime Dissemination period 09:15 - 17:30 CET ISIN DE000A0C3QF1 Free Float Mcap  --- Last value 28.4827 Daily change (absolute) -1.34% (-0.39) Week to week change -8.53% 52 week change 45.54% Year to date change 19.09% Daily low 28.3504   (09:15) Daily high 28.6135   (09:38) 52 week high 59.8016   (09 Aug 2011) 52 week low 18.5760   (24 Dec 2010)