Quote from Mark Noble:
At that website there was alot of information on these securities. The basic idea is buying a zero coupon bond along with a call option on a stock index.
As I understand it, for at least some of these products, the accretion on the zero coupon bond is currently taxable to U. S. citizens and residents regardless of whether distributions are made. These investments, therefore, may be more appropriate for tax exempt entities such as qualified retirement plans or IRA's.