First of all this "exaggerated" fall was technically needed, but had nothing to do with technicals. This was 100% from a MS analyst rating the stock underweight, BUT raising guidance from 100 to 110. Less important, but do not forget to watch volume. The volume has been interesting IMO, the math of will obviously put volume and price at a closer notional. However, the point of watching how the stock trades throughout time and reacts to that volume can tell a more detailed story. I wouldn't ignore it, but today's breakdown was from MS, today's volume... was from MS... tomorrow's reaction will be most likely another analyst.
*I am long, held that bag today **became longer... ***Do NOT love the stock, multiple, valuation, competition