Analyst Downgrades: Chipotle Mexican Grill, Inc., Emerge Energy Services LP, and Baidu Inc (ADR)

Analysts are weighing in on Mexican restaurant chain Chipotle Mexican Grill, Inc. (NYSE:CMG), energy service stock Emerge Energy Services LP (NYSE:EMES), and Chinese internet stock Baidu Inc (ADR) (NASDAQ:BIDU). Here's a quick roundup of today's bearish brokerage notes on CMG, EMES, and BIDU.

• CMG is down 0.7% at $402.55, after Deutsche Bank reiterated its "sell" rating and cut CMG's price target to $340 from $360 -- in three-year-low territory. Further, the Harris Poll EquiTrend Rankings revealed that Moe's Southwest Grill has overtaken CMG as the best fast-casual Mexican restaurant. It's been a rough year for CMG, which has struggled to overcome damage done from a string of food-borne illness outbreaks. Chipotle Mexican Grill is down over 34% year-over-year, and recently broke through the $420 price floor that had contained a previous pullback in April. The stock is now testing a round-number floor in the $400 region, which provided support in January. A few recent options buyers are likely celebrating this latest development, with CMG's 10-day put/call volume ratio at the International Securities Exchange (ISE), Chicago Board Options Exchange (CBOE) and NASDAQ OMX PHLX (PHLX) of 1.27 sitting in the 84th percentile of its annual range. 

• EMES is down 10.9% at $9.27, following a downgrade to "underperform" from "buy" by D.A. Davidson. Emerge Energy Services LP has nearly quintupled since hitting a record low of $1.97 in January, and on Friday hit its highest point since its late-September bear gap. Prior to today, EMES had outperformed the greater S&P 500 Index (SPX) by 156.4 percentage points over the previous 20 sessions. This short-term breather may have been in the cards, however, with EMES' 14-day Relative Strength Index (RSI) of 88 sitting well into "overbought" territory.

• BIDU is down 0.5% at $163.42, after Citigroup downgraded the stock to "neutral" from "buy," and slashed BIDU's price target to $180 from $238. BIDU has lost 18% since bumping up against the $200 level in late April, and is now testing support in the $160-$165 area, which contained a mid-May pullback. Currently, the stock sits 20.7% lower year-over-year, although options bulls seem to think a rally is in the cards, with BIDU's 10-day ISE/CBOE/PHLX call/put volume ratio of 1.93 sitting in the 83rd percentile of its annual range.