Analyst Update: Stone Energy Corporation, Chipotle Mexican Grill, Inc., and Pandora Media Inc

Analysts are weighing in on energy stock Stone Energy Corporation (NYSE:SGY), burrito chain Chipotle Mexican Grill, Inc. (NYSE:CMG), and streaming music specialist Pandora Media Inc (NYSE:P). Here's a quick roundup of today's brokerage notes on SGY, CMG, and P.

• A downgrade to "underweight" from "equal weight" at Barclays has sent SGY spiraling 13.3% to trade at $9.25 -- making it one of the worst performing stocks on the New York Stock Exchange. The brokerage firm cited challenges in the offshore market, and said, "an eventual restructuring or reorganization transaction could result in substantial downside to the current equity value." Stone Energy Corporation is no stranger to bearish attention. In fact, not one of the seven brokerages following SGY recommends buying the shares. What's more, short interest currently represents more than 40% of the equity's total float. But this sentiment is hardly undeserved -- SGY has shed 86% year-over-year, and has now lost a foothold at the $10 level, which had been keeping losses in check for the last two months.

• CMG is off 2.4% at $394.41, after Nomura cut its price target on the stock to $372 from $405 -- representing a discount to current trading levels, and three-year-low territory. The brokerage also lowered its outlook for third-quarter same-store sales ahead of the company's earnings report, due out after the close next Tuesday, Oct. 25, explaining "third-quarter promotions ... do not appear to have had the desired effects." Technically, Chipotle Mexican Grill, Inc. is down 18% year-to-date, and has struggled below the $445 level for more than four months. Nonetheless, call buying has dominated the stock's options pits.

• P is on pace for its eighth consecutive daily loss, down 3.4% at $12.39, after BofA-Merrill Lynch slashed its rating to "underperform" from "neutral" and its price target to $9 from $14. An analyst at the firm called Pandora Media Inc's 2020 revenue target "difficult to achieve," noting the newest on-demand offerings from the company come "five years too late." Credit Suisse also weighed, cutting its price target on the stock by $2 to $14. The shares are off 7.6% year-to-date, and traders seem to expect more losses ahead. Nearly one-quarter of P's available float is sold short, or 10.1 times the stock's typical daily pace of trading.