Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Starbucks (SBUX) downgraded to Market Perform from Outperform at Cowen with analyst Andrew Charles saying his optimism about a comparable sales rebound in the Americas region is diminished as he sees intensified craft coffee competition along with expressing uncertainty on the timeline and magnitude of success with its loyalty efforts. 2. Diamond Offshore (DO) downgraded to Underperform from Neutral at Credit Suisse. 3. Zillow (Z, ZG) downgraded to Hold from Buy at Craig-Hallum with analyst Brad Berning citing the company's announcement that it is expanding its Instant Offers program to Phoenix in addition to Las Vegas and Orlando. 4. Nu Skin (NUS) downgraded to Hold from Buy at Deutsche Bank with analyst Steve Powers saying with the valuation at multi-year highs, the market is pricing in a "material acceleration" in sales and earnings trends. 5. Tenneco (TEN) downgraded to Neutral from Buy at Goldman Sachs with analyst David Tamberrino saying he sees the strategic rationale in the Federal-Mogul acquisition, but highlights near-term challenges from input costs. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Starbucks held deal talks with the Workers United union over a two-day session in Atlanta, with plans to meet once more late next month, Reuters' Savyata Mishra reports. The two parties started negotiations this week on what they called a "foundational framework" to guide union organizing and collective bargaining across the U.S., the author notes. Reference Link

Bullish option flow detected in Zillow with 7,990 calls trading, 3x expected, and implied vol increasing almost 2 points to 60.56%. May-24 51 calls and Jun-24 45 calls are the most active options, with total volume in those strikes near 3,300 contracts. The Put/Call Ratio is 0.11. Earnings are expected on May 1st.

Real Estate Services Analysts, along with James Dwiggns, CEO of NextHome, discuss the latest perspectives on the proposed National Association of Realtors (NAR) Settlement and the implications on brokerage business models (relevant companies ZG/Z, CSGP, COMP, RDFN, EXPI, HOUS, FTHM, REAX, RMAX) on an Analyst/Industry conference call to be held on May 1 at 11 am.

Jefferies raised the firm's price target on Zillow to $77 from $75 and keeps a Buy rating on the shares. The firm expects upside in Q1, though higher mortgage rates and softer housing data exiting the quarter could encourage Zillow to guide Q2 conservatively. Still, the firm sees tailwinds from new products driving upside to consensus in the coming years, the analyst added in a preview note for the U.S. Internet group.