Catch up on today's top five analyst initiations with this list compiled by The Fly: 1. Morgan Stanley analyst Brian Nowak initiated Activision Blizzard (ATVI) and Electronic Arts (EA), both with Overweight ratings. The analyst is bullish on the digital gaming shift away from "units sold" to a business model based on users, engagement, and digital monetization. He sees digital in-game offerings resulting in recurring and growth user bases, increased per-game engagement, and further monetization opportunities. 2. AstraZeneca (AZN) and GlaxoSmithKline (GSK) both initiated with Overweight ratings by Piper Jaffray analyst Richard Purkiss. 3. Achillion (ACHN) initiated with an Outperform by Wedbush analyst Heather Behanna, who set a $13 price target on the shares. 4. Sysco (SYY) initiated with an Underweight at Barclays and $48 price target by analyst Karen Short. 5. Five Below (FIVE), Dollar Tree (DLTR) and Dollar General (DG) all initiated with Equal Weight ratings by Barclays analyst Karen Short. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

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Bearish flow noted in AstraZeneca with 3,362 puts trading, or 1.7x expected. Most active are 4/26 weekly 70 puts and May-24 70 calls, with total volume in those strikes near 3,600 contracts. The Put/Call Ratio is 1.72, while ATM IV is up nearly 2 points on the day. Earnings are expected on April 25th.