Analyst is Simona Jankowski.
According to TipRanks her performance since 2009 is:
1) 55% success rate - 17 out of 31 recommendations of her that TipRanks detected outperformed the market - she definitely doesnt pass the "Monkey test"
2) her average return over the S&P on each recommendation is 5.6% - not bad.
She isnt ranked very high.. and analysts with better performance which are Andrew Uerkwitz from Oppenheimer and Amitabh Passi from UBS both say Buy.
Looks like GLW is bouncing back nicely. I added 500 shares, and I was lucky to get them near the low for a change. GLW has done well buying back shares near lows, so this downgrade may actually give them a chance to buy back a few more.