Coca-Cola (KO) shares have been rising this week following an analyst upgrade Monday morning. Morgan Stanley moved Coke from equal weight to overweight and retained a price target of 47, which would mark an all-time high for the stock, trading now near 43. Coke was a growth stock in the 1990s, but it topped at 44.47 in July 1998. Although earnings have grown since then, the stock is just now getting back to its former high.