SoFi Technologies, the San Francisco-based digital financial services company, acquired Composer, a startup whose platform lets retail investors build, test and automate rules-based trading strategies. SoFi announced the deal on 23 June 2026 as it launched the product under the name Composer by SoFi. Terms were not disclosed.
The deal was made through SoFi's purchase of Composer Securities LLC. SoFi said it plans to build Composer's technology into its own platform and widen access for members through its SoFi Plus subscription, but gave no timeline.
SoFi chief executive Anthony Noto told Reuters: "If you can explain an investment idea in plain English, you can now build, test, and automate it."
What Composer built
Composer was founded in 2020 by chief executive Benjamin Rollert, chief operating officer Ananda Aisola and chief technology officer Ronny Li, who had previously worked at Toronto's Ritual and Montreal's Breather, according to BetaKit. It opened a public beta in 2021 with a no-code tool aimed at giving individual investors access to hedge fund-style strategies without coding skills or expensive data.
In the version SoFi launched, an investor describes a strategy in plain language and the AI helps turn it into a set of rules based on market views, technical signals or asset allocation. Users can test the rules against historical data, adjust weights, conditions and filters, and then switch the strategy on. They can also browse more than 2,000 strategies built by other users, review their past performance, and combine several strategies made for different market conditions into one automated portfolio.
SoFi stressed that the AI helps build the rules but does not make trading decisions by itself, contrasting this with "agentic" trading tools.
“If you can explain an investment idea in plain English, you can now build, test, and automate it.”
Why SoFi is buying
SoFi reported 14.7 million members in its first-quarter results, up 35%, and record adjusted revenue of $1.1 billion, up 41%. Noto said members were "staying engaged through volatility and looking for opportunities rather than retreating from the market."
SoFi also runs Galileo, a technology platform for other financial companies that serves 133 million accounts worldwide. Composer gives SoFi's investing business a strategy-building tool that it did not have before, at a time when rivals are adding AI features to their trading apps.
Brokerages have been looking for ways to stand out since commission-free trading became standard, Reuters reported. In May 2026 Robinhood said customers could set up dedicated accounts and let AI agents trade stocks on their behalf. Noto compared AI's possible effect on investing with the effect mobile phones had on banking, according to The Paypers.
The Composer launch followed SoFi Coach, an AI financial assistant SoFi introduced the month before.
The founders and the funding
Composer raised a $4.25 million seed round in May 2021. In August 2022 it closed a $6 million seed extension led by New York's Left Lane Capital, with existing backers First Round Capital, Alumni Ventures Group's Basecamp, Draft Ventures and Packy McCormick's Not Boring Capital taking part. That brought its total venture funding to more than $11 million, from a group that also included Toronto's Golden Ventures, BetaKit reported.
At that time Composer was available only to users in the United States and said its trading volume had grown 400% and its assets under management 600% over the previous few months. No later funding rounds were reported before the SoFi deal.
Rollert said in 2022 that demand for Composer was rising even as markets fell. He described that year as one of the worst periods in history for stocks and bonds and said many investors were rethinking how they invest, while Robinhood's active user numbers were falling. Composer's pitch was that investing on one's own takes hours of research and monitoring, which its automated strategies were meant to reduce.
What happens to users
Composer by SoFi went live on the day of the announcement. SoFi did not say whether Composer's existing users would need to move to SoFi accounts, how many users the platform had, or what fees would apply.
