Rambus (RMBS) Shares Cross Below 200 DMA By: Market News Video September 16, 2015 at 11:39 AM EDT In trading on Wednesday, shares of Rambus Inc. (RMBS) crossed below their 200 day moving average of $12.94, changing hands as low as $12.41 per share.. Read More >> Related Stocks: Rambus Inc S&P Semiconductor SPDR