S

AI stocks are experiencing a significant sell-off, with the Nasdaq-100 down 5.5% last week. The article identifies Duolingo and SentinelOne as potential bargain opportunities during this market downturn, as both companies are well-positioned to benefit from long-term AI adoption despite current market pressures.

The article compares two leading cybersecurity companies: CrowdStrike, which dominates with its unified Falcon platform, cloud-native architecture, and profitability, versus SentinelOne, which offers AI-powered Singularity platform with high-speed automated response but remains unprofitable. CrowdStrike is recommended as the stronger long-term investment due to its scale, profitability, accelerating growth, and deep integration into enterprise AI infrastructure, despite facing reputational risks from a 2024 incident. SentinelOne shows promising momentum and improving economics but is still in heavy investment phase with significant losses.

SentinelOne stock fell 7.68% on October 16, 2026, significantly underperforming the S&P 500's 1.09% decline. Despite expected earnings growth of 28.57% and revenue growth of 19.74% for the upcoming quarter, the stock carries a Zacks Rank #3 (Hold) rating with a premium Forward P/E ratio of 73.86 compared to its industry average of 53.1.

CrowdStrike (CRWD) is experiencing strong growth driven by platform consolidation, with 51% of subscription customers adopting six or more Falcon modules. Q2 FY27 revenues grew 26% to $1.47 billion and net new ARR surged 51% to $333 million. However, the stock trades at a forward P/S ratio of 38.84, significantly above the industry average of 21.34, earning a Zacks Rank #5 (Strong Sell) rating despite strong financial performance.

SentinelOne closed at $25.66, down 2.32%, underperforming the S&P 500's 0.06% decline. Despite a strong 33.01% monthly gain, the company faces a slight downward revision in EPS estimates. With a Forward P/E of 83.02 above industry average and a Zacks Rank of #3 (Hold), the stock shows mixed signals with positive earnings growth projections but valuation concerns.

Tenable announced the expansion of its open technology ecosystem with the launch of Tenable OPEN for AI, enabling organizations to integrate their preferred AI models and tools with Tenable's exposure intelligence. The program includes partnerships with 11 major security vendors and provides validated AI workflows for cross-platform security operations, threat mapping, vulnerability correlation, and identity-enriched exposure triage.

Palo Alto Networks stock has been surging alongside other cybersecurity stocks due to the proliferation of agentic AI. The author, who has been bullish on the stock for several years, discusses whether it's still a good time to invest at current valuations.

Palo Alto Networks (PANW) is accelerating its platformization strategy, adding 220 net new platformizations in Q4 fiscal 2026 and achieving over 120% net revenue retention among platformized customers. The company secured major deals including a $126 million telecom agreement and a $72 million IT services contract, demonstrating strong adoption across its security platforms. PANW targets over 4,000 platformizations by fiscal 2030 as part of its $20 billion NGS ARR goal, though the stock trades at a premium valuation with a Zacks Rank #3 (Hold) rating.

Palo Alto Networks (PANW) reported Q4 fiscal 2026 earnings of $1.02 per share, beating estimates by 4.1%, with revenues climbing 34% year-over-year to $3.41 billion. The company achieved record platformization adoption with net new NGS ARR reaching $970 million (up 98% YoY) and added 220 net new platformizations.

For fiscal 2027, PANW guides revenues of $14.10-$14.20 billion (23-24% growth) with strong momentum across its Network & AI Security, Cortex, and Idira platforms. However, the stock carries a Zacks Rank #3 (Hold) rating with a D aggregate VGM Score.