If the trader is bearish on market and bullish in volatility, he will implement this strategy. However the trader can be neutral in nature i.e. indifferent if the market moves in either of the direction, this strategy will make profits, but uptrend will give a capped income than downtrend which will give unlimited returns.
This strategy is adopted by traders who are bullish in nature. He expects market and volatility to rise in the near future. A trader need not be direction specific here (i.e. an upward or downward trend, but a small bias towards an uptrend should always be present, as the gains will be much higher once the market moves up r ..