Netflix Inc. said its video-streaming service topped 62 million subscribers worldwide, as original shows such as “House of Cards” drew new viewers globally. Netflix is investing heavily in original programming to keep the U.S. business growing and support Chief Executive Officer Reed Hastings’s international expansion. “Netflix remains a subscriber growth momentum story,” Paul Sweeney, a Bloomberg Intelligence analyst, said in an e-mail. Netflix rose 12 percent to $534.07 in extended trading after results were announced.