Netflix Inc.¡¯s subscriber growth fell short of Wall Street expectations on Monday, sending shares of the normally high-flying stock down 14 percent on fears that the company¡¯s expansion is slowing.

The company added 5.2 million customers from April through June, 1 million fewer than forecasts from Thomson Reuters I/B/E/S, as it added new programming including ¡°Lost in Space¡± and new episodes of Marvel¡¯s ¡°Jessica Jones¡± and ¡°13 Reasons Why.¡±

¡°We had a strong but not stellar Q2,¡± Netflix said in a quarterly letter to shareholders.