Aether Holdings, Inc. is a U.S.-based fintech information and digital media company built around the SentimenTrader platform and a growing portfolio of investor-focused newsletters and tools. The company sells cloud-based subscription access to proprietary stock research reports, market analytics, and trading insights that are delivered online rather than as installed software. In 2025 it expanded through new subsidiaries for media, financial tools, and R&D, including Alpha Edge Media, Aether Grid, and Aether Labs, to broaden content coverage and develop AI-driven analytics. It also acquired the Altcoin and WhaleTales newsletter businesses to deepen its reach in crypto and alternative-investment content. Management describes the business as a platform intended to serve both retail and institutional investors with actionable strategic insights.