Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Snap (SNAP) upgraded to Overweight from Neutral at Cantor with analyst Kip Paulson saying he believes the risk/reward has shifted significantly following yesterday's expiration of the largest remaining lock-up period and the 8.5% share decline since Snap's second quarter earnings report. 2. GoPro (GPRO) upgraded to Neutral from Sell at Goldman Sachs with analyst Doug Clark saying GoPro is on track to launch a new HERO6 camera in the second half of 2017, and product launches have historically been a positive catalyst for the stock. 3. NetApp (NTAP) upgraded to Buy from Neutral at Longbow with analyst Joe Wittine citing a survey which showed that the company's share gains have continued. 4. American Eagle (AEO) upgraded to Buy from Neutral at FBR Capital with analyst Susan Anderson saying the valuation "has become very attractive." 5. Zynerba (ZYNE) upgraded to Buy from Neutral at Roth Capital with analyst Michael Higgins saying he was not bullish on yesterday's failed ZYN002 in osteoarthritis study. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Bearish flow noted in NetApp with 1,299 puts trading, or 2x expected. Most active are 4/26 weekly 98 puts and 4/26 weekly 97 puts, with total volume in those strikes near 830 contracts. The Put/Call Ratio is 2.39, while ATM IV is up over 1 point on the day. Earnings are expected on May 30th.