Companhia de Saneamento Básico do Estado de São Paulo - SABESP (SBS) Cash Flow Statement

The wide quarterly swings in OCF, from $3.2B to $755M, appear driven by working capital timing and tariff adjustment lags, not by a loss of collection efficiency. Despite the volatility, the average OCF over the last four quarters remains above $1.5B, which should cover fixed obligations like interest and dividends, though coverage is thin in the most recent quarter. Investors should monitor whether the 2026Q1 dip reflects a one-off regulatory settlement or a new trend in cash conversion.

The 2026Q1 CapEx of $13.3B is an outlier, dwarfing the $4.1B in 2025Q4 and the $3.0B in 2025Q2, and appears to reflect a step-up in universalization investments post-privatization. While this investment should expand the regulatory asset base and support future tariff increases, the immediate cash burn is substantial, with CapEx/OCF ratios exceeding 100% in several quarters. The sustainability of this pace depends on the regulator's willingness to allow timely recovery, which is not yet evident in the cash flow data.

The $12.5B FCF deficit in 2026Q1 is not matched by new debt issuance, which has been consistently around $1.0M per quarter, suggesting that the company may be drawing down cash reserves or using short-term facilities. With debt-to-equity at 0.94, there is limited headroom for additional leverage without straining the balance sheet. The lack of external financing in the data raises questions about how the capex program will be funded, and investors should monitor for future equity or debt offerings.

The quarterly OCF swings are too large to be explained by net income alone, pointing to working capital movements such as receivables from tariff adjustments or payables for energy costs. In 2025Q3, OCF exceeded net income by $1.0B, while in 2026Q1, OCF was less than half of net income, indicating a timing mismatch. These swings are typical for Brazilian utilities where regulatory adjustments are settled annually, but they complicate cash flow forecasting and may mask underlying cash generation.

The only quarter with meaningful dividend payments, 2025Q2, showed OCF/Div coverage of just 1.3x, which is low for a utility and suggests that dividends may be prioritized over balance sheet flexibility. With capex expected to remain elevated, the payout ratio could become unsustainable if OCF does not grow in tandem. Investors should watch whether the post-privatization management adjusts the dividend policy to preserve cash for investment.

The persistent gap between net income and OCF, particularly in 2026Q1, suggests that accounting earnings are being inflated by non-cash items such as construction revenue under IFRIC 12 and possibly AFUDC. This divergence means that reported profitability may not translate into cash available for dividends or debt service. Analysts should adjust for these non-cash items to assess the true cash-generating ability of the regulated operations.