Carnival Corp. said net income in its third quarter fell 2% from the same period a year earlier, from $1.24 billion to $1.21 billion. Revenue stayed roughly unchanged at $4.9 billion.

The quarter includes an unrealized loss on fuel derivatives of $137 million. On an adjusted basis, Carnival said it earned $1.4 billion, the highest quarterly amount in its history.

Carnival said net revenue yields, a measure of ticket price and occupancy, improved 5% from the same quarter in 2014.

“Clearly our ongoing investments in the guest experience, combined with our global marketing and public relations efforts along with our initiatives to leverage our scale, are having a positive impact,” Carnival Corp. CEO Arnold Donald said.