(Image source: phandroid.com) Shares of Twitter Inc (NYSE:TWTR) are advancing this morning after Morgan Stanley upgraded the microblogging site from underweight to equalweight. Despite user growth concerns, Morgan Stanley believes that Twitter is likely to meet earnings projections over the remaining quarters. Over the last two days, the stock has fallen close to 21 percent. The price target was set at $36 a share. The current pullback in the stock could potential be an attractive entry point as the price target indicates a 16 percent upside.