Indexed annuities are considered by many analysts to be one the main reasons that UK insurer Aviva is offering $2.9bn to acquire the American insurer AmerUS. With more than 70 million baby-boomers set to retire in coming years, the US annuities market, and specifically the equity-indexed annuity market, is a key driver of Aviva's interest in AmerUS.However, some analysts have pointed out that the market for these structured products carries the risk that the US Securities and Exchange Commission
