Arista Networks Jumped Today -- Is the Stock a Buy?

Arista Networks (ANET 3.77%) posted gains in Wednesday's trading. The networking technologies company's share price closed out the daily session up 3.8% and had been up as much as 5.2%. Meanwhile, the S&P 500 (^GSPC 0.01%) wound up flat, and the Nasdaq Composite (^IXIC 0.26%) posted gains of 0.3% in the day's trading.Following some recent valuation pullbacks, Arista stock posted significant gains today. The company's upward share-price movement was spurred by a rebound for bullish investor sentiment on arti ...