Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1.Systemax (SYX) upgraded to Buy from Neutral at Sidoti with analyst Anthony Lebiedzinski saying the recent selloff in shares is overdone. 2. Itron (ITRI) upgraded to Buy from Hold at Argus with analyst John Eade saying while the stock price has trended in a bearish pattern until recently and latest earnings have underperformed, its bookings appear to be in "solid shape." 3. Landstar System (LSTR) upgraded to Outperform from Market Perform at Wells Fargo with analyst Casey Deak saying he has become more positive on the brokerage space moving into 2019. 4. YRC Worldwide (YRCW) upgraded to Buy from Hold at Deutsche Bank with analyst Amit Mehrotra saying he believes continued pricing and yield improvement, renewal of YRC's aging fleet and opportunities to improve labor flexibility and driver productivity will drive better equity value. 5. MercadoLibre (MELI) upgraded to Buy from Hold at Stifel with analyst Scott Devitt saying he believes Q2 was a "transitional" quarter and that management reacted quickly to the Correios price increase by finding the right balance between growth and profitability to position the company well for the long term. 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.