Cisco's Technical Indicator Hits Extreme Level After 98% Rally

Cisco's RSI Reaches Rarely Seen Territory Following Massive Run

Cisco Systems (CSCO) has captured attention not just for its fundamental transformation, but for a technical indicator that's reached an extraordinary level. The networking giant's relative strength index (RSI) climbed to 88.71 on May 19, marking one of the highest readings the stock has experienced in years.

This extreme RSI reading comes after an impressive 98.6% gain from levels around $66 where the stock traded in 2025, according to TheStreet Pro data. The rally has pushed shares well above all major moving averages as AI infrastructure demand accelerates.

Understanding the Technical Warning Signal

The RSI functions as a momentum oscillator ranging from 0 to 100, with readings above 70 typically indicating overbought conditions. However, Cisco's current level near 90 represents territory where few stocks sustain trading for extended periods.

Current technical positioning shows the stock trading significantly above key moving averages:

• 50-day moving average: approximately $87
• 100-day moving average: approximately $82
• 200-day moving average: approximately $77

The stock broke through weekly resistance around $65 in June 2025 and has maintained respect for an ascending trendline, last touching near $78 in late March and early April 2026 before the recent surge.

Record Financial Performance Drives Rally

The technical stretch reflects underlying business momentum that has exceeded expectations. Cisco's Q3 fiscal 2026 results demonstrated the company's positioning in the AI infrastructure buildout.

Revenue reached a record $15.8 billion, representing 12% year-over-year growth. Non-GAAP earnings per share climbed 10% to $1.06, while total product orders surged 35% compared to the prior year.

Most notably, AI infrastructure orders for the full fiscal year were raised to $9 billion from an earlier $5 billion target, highlighting accelerating demand.

Sector-Wide Strength Across Key Metrics

Breaking down the order growth by segment reveals broad-based strength:

• Data center switching orders increased over 40% year-over-year
• Networking product orders rose more than 50%
• Campus networking orders grew over 25%

"Cisco is well-positioned as the critical infrastructure for the AI era," CEO Chuck Robbins stated in the earnings release.

For Q4 fiscal 2026, management guided revenue between $16.7 billion and $16.9 billion, with non-GAAP EPS projected at $1.16 to $1.18. Full-year fiscal 2026 guidance calls for revenue of $62.8 billion to $63.0 billion.

Data Growth Tsunami Supports Long-Term Outlook

Cisco's positioning becomes more compelling when considering the exponential growth in global data traffic. Since 1999, monthly internet traffic has multiplied by a factor of 360,000, with connected users expanding from 250 million to an estimated 5.6 billion today.

AI development is accelerating this trend, creating unprecedented demand for the networking infrastructure that Cisco provides. The company's routers, switches, and networking equipment remain essential components in moving this expanding data volume.

Stock Performance in Context

Shares have gained 51.40% year-to-date and 84.66% over the past year as of May 19, 2026, significantly outpacing the S&P 500's returns of 7.42% and 23.31% over the same periods.

The company also maintains its dividend, recently declaring a quarterly payment of $0.42 per share payable July 22, 2026, demonstrating cash generation capabilities beyond growth investments.

Managing Risk in Stretched Territory

Multiple Wall Street firms including Morgan Stanley, HSBC, and TD Cowen have expressed optimism about Cisco's AI infrastructure opportunity. However, the extreme technical reading suggests potential volatility ahead.

While overbought conditions don't guarantee immediate reversals, historical patterns indicate increased probability of short-term pauses or pullbacks when RSI reaches such elevated levels.

The challenge for investors lies in balancing the compelling fundamental story against technical indicators suggesting the stock may need time to consolidate recent gains. Market participants will likely monitor whether the company can maintain its growth trajectory while technical conditions normalize.