1 These cost between $35 and $55. 2  Keep in mind that an invisible fence doesn't keep other dogs, animals or people out of the yard. 3  The commercial site Dog-Fence-Guide.com provides an overview and links to reviews of various invisible fence products. If living in an area with frequent thunderstorms, consider buying a lightning protector. 2  These cost between $35 and $55. 3  Keep in mind that an invisible fence doesn't keep other dogs, animals or people out of the yard.
Understanding Implied Volatility. In simple terms, implied volatility is the amount of stock price fluctuations. Being on the right side of implied volatility changes can enhance the chances of success. In general, implied volatility increases when the market is bearish and decreases when the market is bullish. This is due to the common belief that bearish markets are more risky than bullish markets. Consider selling strategies when options are being traded at high implied volatility levels.
Ah yes. The VIX, since it tracks the implied volatility of S&P 500 Index Options, gives us a snapshot picture of what the market's expectations of volatility are over the next 30-day period. The VXX Bottom Line: Well, the bottom line is simply this. The VXX allows you to speculate on the direction of the VIX Index.If you think the present snapshot of 30-day volatility is too low, the VXX is one method to speculate on the direction of volatility.he VXX Bottom Line: Well, the bottom line is simply this. The VXX allows you to speculate on the direction of the VIX Index. If you think the present snapshot of 30-day volatility is too low, the VXX is one method to speculate on the direction of volatility.