Bloomberg Businessweek reported ILFC offered a higher yield than similarly rated companies on its first bonds since May as it seeks to pay back debt and finance aircraft purchases.

According to the report, ILFC which is rated B1 by Moody’s Investors Service and BBB- by Standard & Poor’s, sold $650 million of 8.625%, 10-year notes, according to data compiled by Bloomberg. That compares with the average 4.51% yield for debt on the lowest investment-grade tier of BBB and 8.99% on bonds with B grades, according to Bank of America Merrill Lynch index data.

According to Bloomberg, the cost to protect ILFC ‘s debt from default rose to the highest since December 2009 in October after the bailed-out AIG said a month earlier that it planned to sell more than 20% of Los Angeles-based ILFC and divest most of the unit over time. That figure has since declined as ILFC said it signed leases for all of its 2012 new aircraft deliveries and shows a “strong position in high-growth emerging markets,” according to Gimme Credit LLC.

The report also states the unit’s planned initial public offering may be delayed because of “difficult” market.