End of the Rally? $270 Billion Vanished from Nasdaq Network Stocks in a Day

On May 12, Nasdaq-listed network equipment provider Extreme Networks (EXTR) plunged 7.53%, closing at $22.48. Its market capitalization fell by roughly $206 million to about $2.94 billion (approximately KRW 3.8 trillion), erasing nearly KRW 270 billion in value from the previous day.

The stock had jumped to a 52-week high of $24.22 following its third-quarter fiscal 2026 earnings report, powered by an earnings surprise. On a non-GAAP basis, the company delivered earnings per share of $0.26 and revenue of $316.9 million, marking over 11% year-over-year growth. After this momentum-driven rally, profit-taking led to a sharp pullback.

Headquartered in San Jose, California, Extreme Networks is an AI-powered cloud networking company offering wired and wireless network infrastructure, network management software, and security solutions to enterprises, public-sector organizations, and sports venues worldwide. The firm is strengthening its strategy to boost recurring revenue through its integrated cloud network platform, ExtremePlatform ONE, and subscription-based software, while leveraging AI-driven automation to enhance network operations.