From this chart of MSA, since 50.56 became 1st resistance in Feb 2013, this particular level seems like a magnet that encouraged multiple tests. It finally broke again convincingly in Feb 2014 but after forming a Head & Shoulder top, couldn't hold it anymore. Retest of the Support turned Resistance will happen when trading starts on Monday. A downside projection using 50.56 as a mirror means we could see 40.20 in time to come