What are the key financial metrics and performance indicators that Square Inc. investors should monitor?

Investors evaluating Square — now operating under the parent company Block, Inc. — should monitor a carefully selected set of financial metrics and performance indicators that reveal the true health of the business across its two core ecosystems: the seller-facing payment processing platform and the Cash App consumer financial platform. Because Block operates across payments, banking, lending, and cryptocurrency, no single metric tells the complete story. A combination of gross profit growth, transaction volume, user engagement, and unit economics provides the most accurate picture of long-term value creation and near-term execution quality.

The most foundational metric is Gross Profit rather than raw revenue, because Block’s revenue figures are heavily inflated by Bitcoin transaction volume, which carries near-zero margin. When Cash App users buy and sell Bitcoin, the full transaction value flows through the income statement as revenue, but the company retains only a tiny spread. Focusing on gross profit strips away this distortion and reflects what the business actually earns. Analysts and management alike have consistently guided investors toward gross profit as the primary top-line measure, and comparing gross profit growth year-over-year on both the Square seller segment and the Cash App segment separately offers clearer insight into which business is driving momentum.

Beyond gross profit, investors should closely examine Gross Payment Volume (GPV), which represents the total dollar value of payments processed through the seller ecosystem. GPV is a direct indicator of merchant adoption and spending health. If GPV grows faster than the broader retail economy, it signals market share gains. Alongside GPV, Cash App Monthly Transacting Actives (MTAs) measures how many users are actively sending money, using the Cash App Card, or accessing direct deposit within a given month. A user who only occasionally opens the app contributes little revenue; an MTA is a far more meaningful engagement signal. In recent quarters, Cash App has reported over 50 million MTAs, and the trend of that figure matters enormously to forward projections.

• Track Gross Profit per segment quarterly — separating the Square seller segment from Cash App reveals which unit is growing faster and whether diversification is succeeding over time.
• Monitor Gross Payment Volume annually against GDP and retail sales benchmarks to determine whether the seller platform is gaining or losing market share in a given macro environment.
• Watch Cash App Monthly Transacting Actives each quarter, paying special attention to whether growth is accelerating, plateauing, or declining, which signals the consumer adoption curve.
• Evaluate EBITDA and Rule of 40 performance — adding the gross profit growth rate percentage to the adjusted EBITDA margin gives a composite efficiency score that high-quality fintech investors use to benchmark sustainable scaling.
• Examine Square Loans origination volume — the lending product extends credit to merchants and signals confidence in underwriting quality; rising charge-off rates above historical norms around 4-6% warrant caution.
• Assess Bitcoin gross profit contribution from Cash App separately, since it fluctuates with crypto prices and can mask or amplify underlying business trends if not isolated in analysis.
• Review Stock-Based Compensation as a percentage of gross profit — if this ratio exceeds 20-25%, dilution pressure may erode shareholder value even when headline growth looks strong.

Ultimately, the most actionable approach is to build a simple quarterly scorecard tracking gross profit growth rate, Cash App MTA trends, GPV, and adjusted operating leverage simultaneously. If gross profit is growing above 15% annually while MTAs are expanding and EBITDA margins are improving, the business is executing well. However, these metrics lose explanatory power during periods of extreme macroeconomic disruption — for example, a sudden credit tightening environment can compress loan originations rapidly regardless of platform quality, so always layer macro context onto any metric-based assessment before drawing conclusions about fundamental business strength.