US corporate investment in artificial intelligence reached a new high in October 2026, although growth slowed to 1.65 percent, according to data from the Ramp AI Index reported by The Decoder. This marks continued expansion in AI budgets despite a deceleration compared to previous periods.
The Decoder also highlighted that just 1 percent of companies are responsible for generating 80 percent of the revenue for leading AI developers OpenAI and Anthropic. This concentration underscores the dominance of a small group of players in the AI market.
For Japanese investors and market watchers, this trend signals the increasing importance of AI innovation in global corporate strategies, which could influence FX and equity markets as US tech leadership continues to evolve.