Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Tiffany (TIF) downgraded to Hold from Buy at Loop Capital with analyst Laura Champine saying she believes weak tourist traffic continues to impact global demand levels, adding that she is "concerned" that same-store sales growth may prove more difficult to achieve as the company laps its paper flowers launch. 2. GasLog Partners (GLOP) downgraded to Hold from Buy at Stifel with analyst Benjamin Nolan citing valuation and the announcement of an agreement to eliminate the GP's incentive distribution rights in exchange for newly issued limited partner units at a price that Nolan estimates "to be higher than necessary." 3. Kellogg (K) downgraded to Underweight from Equal Weight at Consumer Edge. 4. Delek US (DK) downgraded to Sell from Neutral at Goldman Sachs with analyst Neil Mehta saying the stock has risen 28% since June amid a favorable crude spread between Brent and Midland. 5. Brighthouse Financial (BHF) downgraded to Underperform from Neutral at Credit Suisse and to Sell from Neutral at Goldman Sachs. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.