Blame it on ongoing fears about Zygna's lack of diversification and disappointment over a soft launch for its first post-IPO game. On Friday Macquarie Research initiated coverage with a "Neutral" rating on concerns that just 2.2% of Zynga's users—about 3.4 million players, actually pay the company. On Wednesday Zynga launched "Hidden Chronicles," to disappointment that it hasn't become an insta-hit and criticism that it looks an awful lot like the most popular Facebook game last year, "Gardens of Time," from Disney's Playdom social gaming division. "Hidden Chronicles" hasn't shown up as a hit yet on AppData, but Wedbush analyst Michael Pachter says that's not such a big deal. Pachter says that Zynga isn't promoting the game yet because they're ironing out all the bugs. He's still bullish on the stock and says he expects it's already drawn a solid core audience and will expand more once Zynga starts soliciting players of its other games.