Retail
Alpaca raises $135m to build the brokerage rails agentic AI trades through
Led by Peak XV with Elefund, Unbound and BNP Paribas's venture arm participating, the round takes Alpaca's total financing to $435m as monthly active API users grow nearly fourfold on demand from autonomous trading agents.
Alpaca has closed a $135m equity round led by Peak XV, with Elefund, Unbound and Opera Tech Ventures, BNP Paribas Group's venture arm, joining as backers. Combined with debt financing chiefly from BMO and Kraken parent Payward, the total financing package reaches $435m. The round follows a $150m Series D in January 2026 that valued the company at $1.15bn, and Alpaca frames the new capital as fuel for scaling agent-first brokerage infrastructure spanning both conventional and tokenised markets.
The detail worth sitting with is the usage data, not the headline number: monthly active API users grew nearly fourfold over six months, driven specifically by agentic AI, software agents that autonomously execute trades and manage portfolios rather than humans clicking buttons through a UI. Alpaca does not build retail-facing trading apps itself; it builds the API-first prime brokerage layer that other firms use to build those apps. A fourfold jump in API usage tied to autonomous agents is a demand signal for the infrastructure layer underneath retail AI trading products, not for any single consumer application.
That distinction matters for reading this correctly. This is not evidence that AI trading agents are proven, profitable, or widely adopted by end retail investors; it is evidence that the number of developers and firms building AI-agent-capable trading products has grown sharply enough that the infrastructure provider underneath them needed a nine-figure raise to keep pace. Infrastructure investment consistently runs ahead of proven end-user demand in every technology cycle, and agentic trading is following the same pattern other AI application categories have shown over the past two years.
For anyone tracking where retail AI trading is actually headed, Alpaca's growth curve is a better leading indicator than any individual consumer product launch, because it aggregates demand across every firm building on top of it rather than reflecting one company's marketing. The read is not that retail investors are already trusting AI agents with real capital at scale. It is that enough builders believe they will, soon, that the API layer serving them needed to raise at this size.
Read the original: FinTech Global - Alpaca raises $135m to build the brokerage rails agentic AI trades through. Commentary is the independent editorial view of Share Trading; the original article is credited to its publisher.