Carnival Corp. on Feb. 22 announced plans for a public share offering to raise a total of $1 billion. Shares dropped 4.3% in pre-market trading on Tuesday after closing at $25.97 the day before. The leisure travel company will offer 40 million common shares at a price of $25.10 for each share. The offering is expected to close on Feb. 24. Carnival (CCL) said it expects to use the net proceeds from the share sale for general corporate purposes. Back in January, Carnival’s CFO David Bernstein commented, "We ended the year with $9.