Under a measure known as economic net income (ENI), Blackstone earned a fourth-quarter profit of $128.2 million, or 8 cents a share, compared with a pro forma adjusted figure of $894.9 million, or 72 cents, a year ago.
Analysts polled by Reuters had expected it to report 16 cents a share.
"Lack of available financing in the U.S. and Europe for large leveraged transactions limited our transaction fees," Blackstone's Chairman and Chief Executive Stephen Schwarzman said in a statement. "Difficult market conditions in the U.S. and Europe continue in 2008 and there is little visibility on when these conditions might improve."
The company cited decreases in the value of Blackstone's portfolio investment in Financial Guaranty Insurance Company, which was hit by turmoil in the credit markets, and lower net appreciation of portfolio investments in other sectors as compared with the prior year.
ENI is net income excluding income taxes, noncash charges related to vesting of equity-based compensation and amortization of intangible assets. Blackstone prefers to focus on ENI because of the huge payouts associated with its more than $4 billion initial public offering in June.