WHAT IS THE SOURCE OF THE POTENTIAL EXTRA RETURN FROM THIS STRATEGY?
There is often a supply/demand imbalance for many equity options. Investors generally buy call options to speculate on the potential appreciation of a stock and buy put options for protection from a potential decline. The only "natural" seller of a call option is the long-term owner of a concentrated equity position. Other sellers of options, including banks, broker/dealers and institutional traders, incur costs to hedge option positions and seek to generate a per-transaction profit.
A concentrated equity holder (without the hedging and other costs of a dealer) is in the unique position to take advantage of prices that are often at higher levels than their theoretical value due to these extraneous costs. Over repeated option cycles, Parametric maintains that a quantifiable, expected profit exists and can be realized.