What happened Shares of Marqeta (NASDAQ: MQ) were up 11.9% as of 2:47 p.m. EDT on Monday after the modern card issuing platform announced a partnership with Branch and Uber Technologies (NYSE: UBER) to handle payments for carriers that use Uber Freight. The partnership with Uber Freight is a new market opportunity for Marqeta in transportation, where Uber has already emerged as one of the leading digital freight brokers globally outside of China. Image source: Getty Images. So what Marqeta, which completed its initial public offering in June, has already benefited from enormous momentum lately. It handles payment processing for Square, Affirm Holdings, and other digital commerce companies. In the second quarter, Marqeta reported a 76% year-over-year increase in total payment volume, reaching $26.5 billion for the quarter. The Uber deal follows previous partnerships announced earlier this year with Alphabet's Google Pay, London-based credit card provider Tymit, and Goldman Sachs' Marcus digital banking service. Now what Several fintech companies, from the leaders like PayPal Holdings and Square to small payment processors like Marqeta and DLocal Limited are experiencing robust growth. Marqeta is facing a very long runway of growth ahead, as there was $6.7 trillion in transaction volume conducted through U.S. issuers in 2020. Its recent growth and future opportunity might justify the stock's high price-to-sales ratio of 35 at the current quote. Marqeta's impressive client list proves it has the technology, speed, and reliability that companies value. Every deal it signs only increases the likelihood that Marqeta can continue to capture a growing share of a massive addressable market opportunity. 10 stocks we like better than Marqeta, Inc.When our award-winning analyst team has a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* They just revealed what they believe are the ten best stocks for investors to buy right now... and Marqeta, Inc. wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of October 20, 2021 Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool's board of directors. John Ballard has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Affirm Holdings, Inc., Alphabet (A shares), Alphabet (C shares), PayPal Holdings, and Square. The Motley Fool recommends Uber Technologies and recommends the following options: long January 2022 $75 calls on PayPal Holdings. The Motley Fool has a disclosure policy.Source