Palantir made a ton of money this year thanks to strong US demand. But don't expect much growth in Europe.

• Palantir's first quarter revenue jumped 21% from last year, mostly from US customers.
• International earnings dropped due to "headwinds in Europe," the chief financial officer said.
• CEO Alex Karp maintained his support for Israel and again slammed campus protests.

Palantir raked in more money than ever last quarter — and much of it came from customers in its backyard, according to the company's earnings released Monday.