Good call on selling calls today. Check out the CBOE Interest Rate 10-Year T-No (^TNX) graph for the last month, they have risen significantly. As interest rates go up (and interest rates can only go up at this level), GNW will make more money because they have a good portion of their $80 billion invested in t-bills and other interest rate sensitive investments. This is extremely positive for all GNW and all life insurance companies.
GNW is following the trend of other life insurers. It''s my guess that people are buying in anticipation of higher interest rates, which are looking more likely now and will help improve the profitability of the life insurance division.