Two of the fastest-moving stocks in Barchart’s Top 100 Stocks to Buy were Kopin (KOPN) and Nephros (NEPH), up 60 and 52 positions, respectively. Kopin’s stock is up 62% in the past month and 163% in 2025, while Nephros hit a 52-week high of $5.59, with shares appreciating by 377% over 36 months.

Kopin specializes in microdisplay technologies for defense applications. 82% of its revenue comes from defense industry customers, with the top two accounting for 76% in 2024 revenue. Despite revenue fluctuations, it recently completed a $41 million PIPE to continue growth plans.

Nephros, a maker of water filtration products, targets medical and commercial markets. In the first half of 2025, revenues increased by 37% from 2024, reaching profitability for three consecutive quarters. It ended the second quarter with $5.1 million in cash and no debt, showing promising growth potential.

Nephros appears to be turning a corner with growing revenue and positive operating margins. With a history of growth and profitability, it may be a better investment option compared to Kopin. Investors may find Nephros to be a more stable and promising choice in the top 100 stocks to buy.

Read more at Yahoo Finance: Are These Two Top-100 Stocks Under $10 Worth a Buy?