Netflix shares rose about 4% afterhours as the streaming giant reported that revenue and operating margins continued to improve even as subscriber growth slowed, a sign the company is having success in pivoting toward profitability over growth. Netflix added 5.07 million subscribers in the third quarter, compared with 8.76 million net new subscribers during the period a year earlier. The company ended the quarter with 282.7 million global subscribers, up from 247.15 million subscribers a year ago.