Indexa Capital, Spain’s leading independent portfolio manager, presents its new automated portfolio comparator developed in collaboration with GPTadvisor, an artificial intelligence firm. The solution is based on OpenAI’s GPT-4o models and represents the first tool in Europe that allows investors to upload a file containing their current portfolio and compare it with Indexa’s most similar portfolio. Users can also discuss the results through a conversational agent and access a detailed analysis.
“We want every saver to be able to compare clearly and with data how their portfolio performs against an indexed alternative with equivalent risk. This comparator reinforces our commitment to transparency and informed decision-making,” says Unai Ansejo, co-founder and co-CEO of Indexa Capital.
How the AI-powered automated portfolio comparator works
Users access compare.indexacapital.com/es/esp/ and upload their portfolio using Excel, CSV files, or even a screenshot. The GPT-4o-powered agent identifies funds by ISIN codes, amounts, and currencies, selects the Indexa model portfolio with similar volatility, and calculates and compares returns, historical performance, volatility, and fees of both portfolios. The analysis results are provided in euros and in accessible language through an interactive chat.
“For the first time in a financial institution environment, investors can upload their portfolio and chat with artificial intelligence about it. This Indexa agent not only translates complex data into clear, user-friendly language but also provides context, compares alternatives, and helps users truly understand what they invest in and how much it costs,” adds Salvador Mas, founder and CEO of GPTadvisor.
Comparison methodology
The system starts from the daily net asset value of each fund, converts it to euros at the current exchange rate, and calculates the weighted daily return by the weight of each position to build the portfolio’s cumulative series. From this series, it obtains volatility and returns over different periods, using a default horizon of five years or the maximum available. For fees, it compares the investor’s current portfolio expenses with those of an Indexa portfolio of similar risk.
Value for the investor
According to Ansejo, this service aims to make portfolio comparison easier for investors. This new initiative complements Indexa Capital’s existing automated assistant and consolidates the use of AI to further automate and facilitate the best investment decisions.
About Indexa
Indexa Capital AV (https://indexacapital.com) is Spain’s leading independent portfolio manager with over €3.4 billion assets under management and more than 110,000 clients. Indexa combines investment management (fund portfolios and indexed pension plan portfolios) with personalized financial planning. It also sub-manages two indexed fund-of-funds managed by Renta 4 Gestora, advises Caser Pensiones on employment pension plan management, and offers clients life insurance in collaboration with Caser Seguros, probably the life insurance with the lowest premiums on the market.
Indexa offers higher potential returns by charging fees and costs on average 84% lower than those currently offered by banks and funds in Spain.
Founded in December 2015 and supervised by CNMV, by Unai Ansejo, François Derbaix, and Ramón Blanco—experts with recognized experience in markets, investments, and internet businesses—and with top-level advisors like Manuel Conthe, Luis Martín Cabiedes, and Pedro Luis Uriarte.
About GPTadvisor
GPTadvisor (https://gptadvisor.com) is a company founded in 2023 by Salvador Mas, dedicated to offering wealth management solutions based on generative artificial intelligence, specially designed for financial advisors and wealth management firms. Its platform allows professionals to query portfolios, funds, and investment products using natural language—without reading complex documentation—transforming data into automated reports, comparisons, and proposals.
GPTadvisor’s conversational assistants can identify and analyze thousands of investment instruments, generate personalized summaries and detailed reports tailored to client profiles, with high standards of privacy, data control, and financial regulation compliance. Their technology is already implemented in institutions like Santander, Bankinter, Cecabank, Aiva, Andbank, My Investor, and Caser.
Indexa Capital Blog: https://blog.indexacapital.com/
Indexa Capital on Twitter: @IndexaCapital
Indexa Capital on LinkedIn: https://www.linkedin.com/company/indexa-capital
Indexa Capital on Telegram: https://t.me/indexacapital
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