Signage outside of the Netflix office building on Sunset Boulevard in Los Angeles, Calif. On Monday, April 19, 2021.

Bing Guan | Bloomberg | Getty Images

Check out the companies that hit the headlines on Tuesday after the bell:

Netflix – The streaming giant’s shares fell 10.4% after the company reported a huge failure in subscriber growth numbers. Netflix added 3.98 million net paid subscribers. Analysts surveyed by FactSet expected an increase of 6.2 million subscribers. The weaker than expected customer growth figures overshadowed the profits and sales of the previous quarter, which were above forecast.

CSX – The railroad operator’s shares fell 1.8% after the company announced mixed results for the first quarter. CSX posted earnings per share of 93 cents on sales of $ 2.81 billion. Analysts polled by Refinitiv expected earnings per share of 95 cents on sales of $ 2.78 billion.

Interactive Brokers – The brokerage company’s stock rose 2.1% after the company posted better-than-expected results in the first quarter. The company had earnings per share of 98 cents on sales of $ 893 million. Analysts polled by Refinitiv forecast earnings per share of 91 cents to $ 737 million.

Tenet Health – Tenet Health stock rose 3.8% after the company posted first quarter results that exceeded analysts’ expectations. The company had earnings per share of $ 1.30 on sales of $ 4.78 billion. Analysts polled by Refinitiv forecast earnings per share of 72 cents on sales of $ 4.77 billion.

Intuitive Surgical – Intuitive Surgical shares fell nearly 4% after the company posted first-quarter earnings that exceeded analyst forecasts. The company had earnings per share of $ 3.52 on sales of $ 1.29 billion. Analysts surveyed by Refinitiv expected earnings per share of $ 2.63 on sales of $ 1.11 billion.