E to E Transportation Infrastructure's IPO was heavily oversubscribed, reaching 526.26 times its offering, with non-institutional investors showing the highest demand. The company, which provides railway system integration and engineering solutions, is set to list on January 2, 2026. Grey market indicators suggest a strong debut, with unlisted shares trading at a significant premium, hinting at a potential listing price around 324, an 86% increase over the upper price band. Analysts caution that the grey market is unregulated.