Why Is GLAUKOS CORP (GKOS) Stock Up Today?

Glaukos Corp stock rose 7.05% to $172.86 in early trading on October 28 as the company prepared to release its third quarter 2026 financial results after market close. The stock opened at $161.00 and reached an intraday high of $174.48 before settling at $172.86. The move followed a wave of bearish options activity and speculation about the firm's upcoming earnings.

What Happened

The stock opened lower but quickly reversed direction, driven by a wave of buying interest. The session high of $174.48 was reached at 12:40 PM ET, reflecting a strong intraday rebound. A bearish options hedge was noted in the morning as GKOS rallied 6.6%, according to options flow data. This activity suggested some investors were hedging against a potential earnings miss or volatility around the release. The stock is set to report its third quarter 2026 financial results after market close on October 28, which is expected to draw investor attention.

What The Data Shows

The stock traded at 0.7 times its 3-month daily average volume, indicating moderate participation. The company has a market capitalization of $9.7 billion but remains unprofitable with a trailing twelve-month earnings per share of -3.25. Despite the negative net margin of -30.7%, revenue has grown 41.5% in the trailing twelve months. The stock is currently within its 52-week range of $73.16 to $191.62. The 52-week tape also showed 12 fresh 52-week highs on October 7. In recent insider transactions, Chief Development Officer Tomas Navratil sold shares on three separate occasions in the past month.

What To Watch

Investors should focus on the company's third quarter 2026 financial results, which are scheduled for release after market close on October 28. The results may provide clarity on the firm's revenue growth and path to profitability.