McKesson (MCK) shares of the lower beta healthcare services name are building a bullish flag with relative strength just above one year value area and holding its key 55 day EMA near 590 for a potential breakout above 600. A name that has held up strong since its blowout earnings report in November and could be due to see defensive rotations into healthcare if the markets stay volatile. MCK still has 390 May $640 calls in open interest from the buyer on 12/11 while 800 January $660 calls sold to open so a longer term target this year may be 660.