Arista Networks, Inc. (ANET) rose 5.61% on September 12, 2026, closing at $199.61 as the networking hardware and software company posted one of its stronger single-session moves in recent weeks. The gain pushed the stock's market capitalization to $238.36 billion.
Over the trailing seven days, ANET added 3.01%, suggesting a degree of near-term momentum building heading into the session. The daily and weekly gains stand in contrast to the broader 30-day picture, where the stock remains down 5.14% from a month ago.
The 30-day decline indicates the stock had faced selling pressure over the prior month before Friday's rebound. Whether the session's advance represents a sustained reversal or a brief recovery within a longer pullback is not reflected in the data available.
At $199.61, Arista Networks sits just below the $200 threshold, with a market capitalization of $238.36 billion placing it among the larger companies in the technology networking space.
