CME vs. PayPal: Which Financial Stock Is a Better Buy for 2027?

While digital payments reshape retail, global financial markets rely on stable exchanges. Deciding between CME Group (NASDAQ:CME) and PayPal (NASDAQ:PYPL) requires weighing high-margin stability against massive scale and a value-oriented valuation.

CME Group operates major derivatives marketplaces, benefiting from volatility in interest rates and commodities. PayPal remains a leader in digital wallets and branded checkout services. We're comparing these two companies because they represent different corners of the financial world, offering distinct risk-reward profiles for investors looking toward 2027.

The case for CME

CME Group operates the leading marketplace for derivatives, which are financial contracts that derive value from underlying assets. As a prominent player among financial stocks, it serves professional traders and global institutions across asset classes like interest rates, energy, and metals. The company relies on a member-based model in which exchange members drive 85% of derivatives volume, and it maintains a strategic partnership with S&P Global (NYSE:SPGI) for index-based products. In addition to traditional assets, the company offers products like Bitcoin (CRYPTO:BTC) futures and prediction markets through a venture with FanDuel, a subsidiary of Flutter Entertainment (NYSE:FLUT).

In fiscal 2025, revenue reached nearly $6.5 billion, representing growth of approximately 6.4% compared to the prior year. The company generated net income of roughly $4 billion. This resulted in a strong net margin of about 62%. Customer concentration is a factor to watch, as one clearing firm accounts for nearly 12% of CME's clearing and transaction fee revenue. Customer concentration like this adds a layer of risk to the business.

As of its December 2025 balance sheet, the debt-to-equity ratio, which measures total debt relative to shareholders' equity, was approximately 0.1. The current ratio, which gauges the ability to cover short-term liabilities with short-term assets, was about 1. During fiscal 2025, the business generated free cash flow of nearly $4.2 billion. Free cash flow is the cash a company generates after accounting for the money needed to maintain or expand its asset base.

The case for PayPal

PayPal operates a massive two-sided network with nearly 439 million active accounts across approximately 200 markets. The company provides a wide range of services, including Venmo for person-to-person transfers and buy now, pay later solutions for shoppers. It generates revenue by providing payment processing and fraud prevention tools to millions of merchants globally. By maintaining a lead in branded checkout, the company remains a central figure in the global digital economy.

In fiscal 2025, PayPal reported revenue of nearly $33.2 billion, an increase of approximately 4.3% from the previous year. The company achieved net income of close to $5.2 billion. These results produced a net margin of roughly 15.8%. While revenue growth has slowed compared to earlier years, PayPal continues to generate significant profits from its vast transaction volume.

As of its December 2025 balance sheet, the current ratio was approximately 1.3. The debt-to-equity ratio was roughly 0.5. PayPal generated free cash flow of close to $5.6 billion during fiscal 2025. This strong cash generation provides the company with flexibility to reinvest or return value to shareholders.

Risk profile comparison

CME Group is subject to risks from global market and geopolitical volatility, which can negatively impact trading volumes and revenue. The company also faces intense competition from traditional exchanges like Cboe Global Markets (NYSEMKT:CBOE) and Deutsche Börse (OTC:DBOEF). Furthermore, the business carries heavy regulatory burdens and operational dependency on third-party data centers, where any disruption could lead to financial loss.

PayPal operates in the highly competitive global payments industry, facing pressure from larger tech-enabled players and nimble start-ups. The company must manage significant cybersecurity risks, including potential data breaches and system outages that could harm its reputation. Additionally, PayPal faces material legal exposure from ongoing securities fraud class action litigation and evolving global regulatory scrutiny regarding consumer protection and digital assets.

Valuation comparison

PayPal appears significantly more attractive on a valuation basis, as it trades at a much lower multiple of both sales and future earnings estimates.

Valuation metrics include sourcing from Financial Modeling Prep (FMP) and may differ from other data providers.

The P/S ratio measures a company's market value against its sales over the past 12 months. The forward P/E ratio compares the stock price to future earnings estimates for the next year.

Which stock would I buy for 2027?

PayPal's valuation is clearly lower than CME Group's; investors evidently don't see the former growing much from here. While I don't think historical stock performance necessarily dictates future performance, PayPal's returns over the past 10 years don't compare favorably with CME Group's:

PYPL data by YCharts

Over the past decade, CME Group has outperformed PayPal by more than 140 percentage points. In fact, PayPal's returns barely outpaced inflation during that period. The payments titan has been a pretty disappointing investment.

However, that chart also reveals something unflattering about both companies' share performance: Neither PayPal nor CME Group managed to keep pace with the S&P 500 over that time frame.

That said, this article is about comparing two financial stocks, not two stocks and an index. Between PayPal and CME Group, I think the derivatives specialist looks like the more attractive investment. CME Group has slightly stronger revenue growth and a significantly higher net margin, and that's why it's getting my vote today.

Erin Kennedy has positions in CME Group. The Motley Fool has positions in and recommends Bitcoin, CME Group, PayPal, and S&P Global. The Motley Fool recommends Cboe Global Markets and Flutter Entertainment Plc and recommends the following options: short December 2026 $62.50 calls on PayPal. The Motley Fool has a disclosure policy.