Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. U.S. Steel (X) downgraded to Sell from Neutral at Goldman Sachs with analyst Matthew Korn saying he expects the stock to weaken as the market continues to absorb the effects of materially lower steel prices. 2. Box (BOX) downgraded to Hold from Buy at Canaccord with Canaccord analyst Richard Davis saying the company's fundamental position is "too strong" for it to be executing this sporadically. 3. Kohl's (KSS) downgraded to Underweight from Neutral at Atlantic Equities. 4. MercadoLibre (MELI) downgraded to Neutral from Buy at BTIG with analyst Marvin Fong saying the stock's 94% advance year-to-date has fixed the "glaring price inefficiency" that its stock price had previously represented. 5. Ensign Group (ENSG) downgraded to Hold from Buy at SunTrust with analyst David MacDonald saying he is positive on the company's "local structure and unique M&A strategy," along with its solid growth and value-unlocking pending spin. However, MacDonald notes that the upcoming changes in Ensign Group's reimbursement structure carry some "uncertainty" and also sees the risk/reward on the stock as "balanced" at 21-times his expected FY20 earnings multiple. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

Jefferies lowered the firm's price target on MercadoLibre to $1,400 from $1,650 and keeps a Hold rating on the shares. A recent ramp in investments could pressure EBIT near-term, though continued momentum in GMV, Advertising, and Credit "would keep the long-term story alive," the analyst tells investors in a preview note for the U.S. Internet group.

DZ Bank upgraded MercadoLibre to Buy from Hold with a $1,685 price target.

Says will continue to buy back stock "hand over fist." Says Cleveland-Cliffs (CLF) "the only U.S. solution" for U.S. Steel (X). Says will have to "re-assess value" of U.S. Steel. Says targeting net debt to EBITDA of 2.5x. Says balance sheet in "great shape, near record liquidity." Sees CapEx ~$1B/year from 2025-2028. Comments taken from Q1 earnings conference call.