Abstract

Companhia de Saneamento Básico do Estado de São Paulo – SABESP will release quarterly results on March 16, 2026 Post Market; this preview synthesizes the latest reported quarter, consensus forecasts for the to‑be‑reported quarter, and key operating levers likely to drive the print and immediate stock reaction.

Market Forecast

Based on the latest compiled expectations, SABESP’s to‑be‑reported quarter is projected to deliver revenue of 9.53 billion (+47.66% year over year), with adjusted EPS of 2.80 (+27.61% year over year). Forecast EBIT is 3.01 billion (+34.50% year over year). Forecasted gross margin and net margin were not specified. The company’s core operating activity remains the primary driver of consolidated performance, with improving revenue trajectory implied by consensus and room for operating leverage if costs track to plan. Within the broad operating activity, last quarter’s operating revenue was 9.85 billion; total company revenue declined 37.15% year over year in that period, setting a low base that frames the rebound implied for the current quarter.

Last Quarter Review

In the most recent reported quarter, SABESP posted revenue of 9.43 billion (−37.15% year over year), a gross margin of 31.77%, GAAP net profit attributable to shareholders of 2.16 billion with a net margin of 22.90%, and adjusted EPS of 3.07 (−64.65% year over year). A notable highlight was stability in bottom‑line momentum quarter over quarter, with net profit up 1.06% sequentially, helping to cushion the year‑over‑year comparison pressure. In terms of business mix, the operating activity recorded 9.85 billion in revenue, while total company revenue contracted 37.15% year over year, indicating that the quarter’s softness was broad at the consolidated level even as the core operating engine remained the clear revenue anchor.

Current Quarter Outlook (with major analytical insights)

Core operating performance: revenue cadence and profitability mechanics

Consensus points to a meaningful reacceleration in top line to 9.53 billion (+47.66% year over year), an inflection from the prior quarter’s contraction at the consolidated level. The gap between revenue growth and EBIT growth (+34.50% year over year to 3.01 billion) suggests expectations for positive operating leverage, but not on a one‑for‑one basis, which implies the market is embedding some elasticity in key operating costs. The revenue estimate and EPS estimate of 2.80 (+27.61% year over year) together imply that a portion of the anticipated revenue step‑up will be reinvested into operating and maintenance (O&M) lines, with profitability still advancing but not fully matching the top‑line growth pace. Within the P&L, gross margin was 31.77% in the last quarter, and net margin was 22.90%. Forecast margins were not explicitly provided, but the EBIT and EPS cadence indicate the street expects the cost of services and overhead to absorb part of the revenue uplift while leaving room for higher operating income and earnings. Operating sensitives to monitor around the print include labor and outsourced services, energy and treatment‑related consumables, and provisions. Even modest moderation across these inputs can unlock outsized upside to EBIT given the scale of the revenue base; conversely, slippage on any one cost line can compress the conversion of revenue to operating profit despite robust top‑line prints. The sequential stability in net profit last quarter (+1.06% quarter over quarter) provides a starting point that reduces the hurdle for sequential improvement if the forecast revenue rebound materializes. Cash conversion discipline will also matter for the post‑print narrative. While not pre‑guided, a stronger EBIT path typically supports operating cash flow, which in turn can sustain capex plans and support balance‑sheet flexibility. If working‑capital dynamics (notably receivables and payables timing) align with the revenue trajectory, the quality of earnings could screen better than the headline EPS alone, providing an incremental support to sentiment even without explicit margin guidance.

Most promising business line: scaling the operating engine

The operating activity remains the linchpin of SABESP’s financial model and the clearest candidate for near‑term growth delivery. With 9.85 billion of revenue in the last reported quarter, it dominates the consolidated profile and, on consensus math, appears positioned to convert a larger revenue base into higher EBIT. The pathway to outperformance this quarter depends on two elements that are embedded in estimates: a healthier revenue mix and steady unit economics. A top‑line profile that leans toward higher‑yield services would raise effective average revenue per unit and support incremental margin even if aggregate input costs normalize sequentially rather than fall. A second lever is operating efficiency. The evidence point in the forecast—EBIT set to rise by 34.50% year over year—implies the market expects operating costs to grow slower than headline revenue. Execution against efficiency programs, tighter control of outsourced services, and disciplined procurement can cumulatively produce margin accretion in quarter. If realized, that can help bridge the gap between the implied mid‑30s EBIT growth and the high‑40s revenue growth, strengthening the argument that EBIT outperformance is feasible against expectations that already embed a substantial recovery. A final ingredient is stability in below‑the‑line items that flow through to EPS. With EPS projected at 2.80 (+27.61% year over year), the market is assuming that the translation from EBIT to after‑tax profit will be orderly, with no outsized drag from non‑operating items. That view will hold if interest expense and any non‑recurring items remain controlled relative to the scale of pre‑tax income. If below‑the‑line effects are benign or better, the operating improvement could be more visible at the EPS level than the current forecast implies.

Near‑term stock drivers: delivery versus forecasts and earnings quality

The most important driver for the stock around this release is the degree to which reported figures align with, exceed, or miss the street’s revenue and earnings path: 9.53 billion in revenue and 2.80 of adjusted EPS are the anchor numbers. A top‑line print close to, or modestly above, 9.53 billion would validate the narrative of a rebound from the last quarter’s consolidated contraction and likely set the tone for the discussion of full‑year pacing. On earnings, the spread between revenue growth (+47.66%) and EPS growth (+27.61%) means investors will scrutinize cost lines to determine whether the gap is transient—linked to a particular expense phasing—or structural. If management’s cost execution shows traction, the market may recalibrate the slope of the earnings trajectory upward. Earnings quality will matter for the sustainability of any initial stock reaction. Clean operating income, limited non‑recurring items, and stable effective tax outcomes could help the market ascribe greater confidence to the EPS print. The cash flow picture—particularly operating cash flow relative to EBIT—will be an important corroboration for any narrative of margin resilience. In that context, even if margins are not pre‑guided, signals on expense containment, procurement strategy, and efficiency initiatives can serve as practical guideposts for the rest of the year’s profitability path. Finally, guidance color and qualitative commentary accompanying the results can influence how the market interprets the durability of the recovery implied by consensus. Investors will listen for signals about the pace of cost normalization, the phasing of planned expenditures, and the anticipated balance of volume and price effects over coming quarters. Clarity that aligns with the current consensus trajectory—or improves visibility on the slope of margin recovery—would likely be taken constructively. Conversely, any indications that costs will outpace revenue into the next quarter could tilt sentiment toward a more conservative stance despite a solid top‑line print.

Analyst Opinions

Within the window from January 1, 2026 through March 9, 2026, there were no newly published sell‑side previews or ratings updates identified that provide a clear bullish or bearish majority stance specific to the upcoming quarter. In the absence of fresh opinion dispersion, the most tangible institutional signal available is the consensus embedded in the forecasts outlined above, which leans positive on revenue acceleration and constructive—but more measured—on margin expansion and EPS trajectory. This configuration is consistent with a cautiously optimistic posture: supportive on top‑line recovery and improving operating income, yet mindful of cost‑line sensitivities that could influence earnings conversion. Interpreting that stance for the imminent print, the constructive case centers on three pillars: a) the magnitude of the year‑over‑year revenue recovery implied by the 9.53 billion estimate (+47.66%), b) the upward step in EBIT to 3.01 billion (+34.50% year over year) signaling operating leverage, and c) the improved earnings power at 2.80 of adjusted EPS (+27.61% year over year), despite the last quarter’s depressed year‑over‑year baseline. The analytical focus of institutions that are constructive would likely emphasize delivery against these levels, the cadence of cost normalization, and the potential for a better‑than‑feared translation from EBIT to EPS if non‑operating items remain orderly. If the reported figures track these contours and management commentary bolsters visibility on expense discipline, the constructive tilt could gain traction and support estimates for the following quarter. Conversely, the elements that might temper enthusiasm in the institutional community—and therefore constrain the breadth of a bullish stance—stem from the spread between top‑line and EPS growth, which suggests the market expects cost absorption to remain non‑trivial even as revenue rebounds. To maintain a constructive majority view, evidence will need to show that unit costs are stable or improving and that any increases in operating expenses are either transitory or offset by efficiency gains. Should the company deliver on the revenue line and show clean operating execution, institutions that have withheld formal previews in recent weeks may nonetheless align their commentary with a cautiously positive outlook, contingent on confirmation of these operating dynamics in the reported numbers.