TheMarketAI SC 15 Index Extends Winning Streak in September with 6.4% Gain
- Niv Nissenson
- Oct 2
- 2 min read
TheMarketAI Small-Cap 15 Index continued its strong momentum into September, advancing 6.4%for the month and closing at 127.12, up from 119.47 at the end of August.
The proprietary index—developed by TheMarketAI.com to spotlight under-the-radar AI-driven innovators in the small-cap universe—has now delivered double-digit cumulative growth in just its third month of tracking.
September Highlights
Total Market Cap: $149.5 billion across the 15 constituents
Top Performers: Credo Technology Group (CRDO) and IonQ (IONQ) continued to lead gains, supported by investor optimism around quantum computing and AI hardware integration.
Strong Software Momentum: Commvault Systems (CVLT) and Clearwater Analytics (CWAN) also saw notable appreciation, reflecting renewed confidence in AI-enhanced data management and analytics platforms.
Hardware Resilience: Rambus (RMBS) maintained solid performance, benefiting from its exposure to memory interface and AI infrastructure trends.
TheMarketAI Take
September’s advance reinforces what the index is designed to capture: AI’s next generation of growth is no longer confined to mega-cap names. While the broader market showed signs of fatigue, our AI small-cap universe continued to outpace major benchmarks—showing that innovation leadership is increasingly distributed across a wider field of players.
As the AI boom filters into second-tier enablers and niche software leaders, TheMarketAI SC 15 Index continues to provide a forward-looking lens on where the next breakthroughs—and investment opportunities—are emerging.
