Today, leading hospital owner and operator HCA Healthcare, Inc.(NYSE:HCA) is coming under heavy selling pressure after reporting earnings. HCA stock is trading lower by $3.40 to $82.54 a share in today’s session. The stock is still holding above its daily chart 200-day moving average which is at $81.47. Should the stock close below this key level on a weekly chart it would signal that another bearish move is coming. HCA stock does have major chart support around the $77.50 area should it decline further from here. This should be a level that will be defended by the institutional traders and investors, so keep it on the radar.