Problem

SyntheticFi addresses a liability-planning gap in wealth management: financial advisors often have few efficient ways to help clients raise liquidity without selling investments. Traditional mortgages, securities-backed lines, bank loans, and margin loans can carry materially higher rates, restrictive underwriting, large minimums, or limited tax deductibility. Selling appreciated assets can also trigger capital-gains taxes and interrupt long-term portfolio growth. SyntheticFi’s clearest use case is financing a home purchase or refinancing an existing mortgage while keeping the client’s portfolio invested.

The economic appeal is most pronounced for asset-rich clients who need substantial liquidity but do not want to liquidate securities. SyntheticFi says its loans can offer rates around 4% or slightly above, compared with roughly 6–13% for the traditional alternatives shown on its site, while potentially providing broader interest deductibility depending on the client’s circumstances. The company also targets other expensive or inflexible borrowing needs, including HELOCs, business loans, vehicle loans, personal loans, bridge financing, and concentrated-position diversification.

Product / Service

SyntheticFi is an advisor-facing securities-backed lending platform and implementation service. It uses box spreads—four-option strategies on highly liquid S&P 500 index options—to translate a client’s borrowing need into a fixed payoff at a future expiration. Because the options hedge one another and lenders compete in the exchange market to provide the financing, SyntheticFi says clients can access institutional-style funding without a conventional bank intermediary. The platform supports both fixed-rate and floating-rate structures and is designed to work alongside advisors’ existing client and custodian relationships.

The delivery model combines software, calculators and proposals, educational resources, and hands-on implementation support for RIAs. Clients borrow against eligible investment portfolios rather than relying primarily on income or credit underwriting, can preserve their invested assets, and may choose repayment structures suited to their cash flow. SyntheticFi’s principal benefit is to make a financing strategy historically associated with hedge funds, family offices, and ultra-high-net-worth borrowers available through ordinary wealth-management planning, although collateral, margin-call, refinancing, and tax risks remain and tax treatment requires professional advice.

Market

SyntheticFi competes in fintech lending, securities-backed lending, and wealth-management liabilities planning. Its direct or adjacent alternatives include Provable Markets, Lendr, and Knab, while established substitutes include Schwab’s pledged-asset line, bank-offered securities-backed loans, and custodian margin loans. Its differentiation is the combination of exchange-based box-spread financing, advisor workflow and education, flexible loan structures, and the ability to serve multiple liquidity purposes without moving client assets or requiring a traditional mortgage process.

The company appears to have meaningful live adoption rather than being pre-launch: in June 2026 it reported more than 3,000 advisors across 300-plus firms, over $2 billion in regulatory assets under management on the platform, and approximately threefold growth since the beginning of the year. It also reported more than $13 million in venture financing from investors including Y Combinator, Social Leverage, NextGen VP, and The Compound Capital Fund. The available sources do not disclose revenue, loan volume, or profitability, so commercial traction is best evidenced by advisor and firm adoption rather than financial performance.