Alert set for break from pennant as we look for further upside. stock is helped by the extremely bullish market sentiment Nice gains since our first alert. GAP fill opportunity remains P/E 22 Seeking Alpha article Arista Networks is down by 40% from its highs due to disappointing sales guidance. However, this looks like a temporary slowdown due to delayed spending from a big customer. The business remains competitively strong, and growth opportunities are quite attractive over the long term. Expectations have been reduced, and valuation looks quite attractive if growth rates accelerate again in the future. The current pullback in Arista Networks looks like a buying opportunity for long-term investors who can tolerate the short-term uncertainty.s