Introducing VIX1D: Wall Street's New One-Day Fear Gauge

Exchange group Cboe is set to launch a new version of the Vix, the volatility index known as "Wall Street's fear gauge," that will track expectations of short-term market swings. The 1-day Volatility Index, or Vix1d, will measure expected volatility in the S&P 500 over the next day of trading, rather than over the next month like the Vix. The move is a response to a recent transformation in derivatives markets that had sparked concerns about the effectiveness and relevance of the original Vix.