Volatility-Based Neutral Strategies

Options prices embed an expectation of how much the underlying will move: implied volatility. What actually happens is realized volatility. The two differ systematically: implied volatility tends to trade above realized most of the time, then well below it in the rare periods when markets gap. A position that sells implied and hedges the directional exposure earns the gap in calm markets; a position that buys it earns when markets break.

Any option position carries directional exposure that changes as price moves. Neutralizing it requires trading the underlying, or a perpetual on it, continuously as the exposure shifts. The frequency and cost of that rebalancing are the strategy’s principal operating variable. Hedge too often and fees eat the edge; too rarely and the position becomes a directional bet.

Volatility positions are held in a defined share of the neutral mandate and sized so that a mis-estimate of realized volatility does not dominate the book. Their purpose is diversification of return source, not amplification. Long-volatility positions in particular act as insurance for the carry book, which is short volatility in effect if not in form.