The Motley Fool·2026-02-15 08:30Core Insights - The S&P 500 has had a slow start this year, while the Dow Jones Industrial Average reached a record 50,000, driven by investments in undervalued tech stocks, particularly in the SaaS sector and AI opportunities [1] Group 1: Ciena - Ciena is a leader in networking and connectivity, with products essential for streaming, e-commerce, and cloud services, and is increasingly in demand for AI infrastructure [4] - The company's data center business is growing rapidly, with expectations to double last year's sales by 2025 [4] - Ciena's addressable market was $600 billion last year, projected to grow to $1 trillion by 2028 [6] - The stock gained 176% last year, indicating strong growth potential [7] Group 2: Sandisk - Sandisk has seen a remarkable increase of 1,440% since becoming a standalone public company, driven by new deals with data center clients [8] - Revenue increased by 31% sequentially and 61% year over year in the second quarter of fiscal 2026 [8] - The company specializes in NAND flash memory, which is in high demand for AI hyperscalers and data centers, with data center revenue up 64% sequentially [10] - Adjusted earnings per share (EPS) rose to $6.20 in the second quarter, up from $1.23 last year [10] - The stock is considered reasonably priced at 15 times trailing-12-month sales [11] Group 3: ServiceNow - ServiceNow has been significantly affected by the market sell-off, down 50% over the past year, but continues to grow rapidly [12] - The company is a leader in workflow software, serving 8,800 clients, and is enhancing its services through partnerships with AI companies [13] - The stock trades at a P/E ratio of 29, suggesting potential for expansion in 2026 [14]