Cost matters more in long-term investing than almost any other variable. The compounding difference between paying 1% annually in management fees and paying 0.4% annually translates, over thirty years of compounding, into a meaningful share of an investor's eventual retirement balance. Indexa Capital was founded in Madrid in 2014 with that mathematics at the centre of its product philosophy — building a robo-advisory platform with management fees deliberately set at the low end of what is operationally viable, on the conviction that the most important thing a wealth manager can do for retail clients is get out of the way of compounding. Its platform offers diversified portfolios of low-cost ETFs across multiple risk profiles, with the operational efficiency to support a significantly lower fee structure than most of its competitors. Indexa has grown to become one of Spain's largest robo-advisors and expanded into Belgium and France, building a substantial Pan-European presence. The company is profitable — unusual among European robo-advisors at its scale — reflecting the operational discipline that the low-cost positioning requires. In the European wealth tech landscape, Indexa represents the model that puts cost reduction at the centre of the value proposition, with the unglamorous operational excellence required to make that model sustainable.