Cyberonics (CYBX) Shares Cross Below 200 DMA By: Market News Video January 29, 2015 at 11:47 AM EST In trading on Thursday, shares of Cyberonics, Inc. (CYBX) crossed below their 200 day moving average of $56.59, changing hands as low as $56.14 per share.. Read More >> Related Stocks: S&P Healthcare Equipment SPDR