Why Sabesp (SBS) Stock Is Down Today

Companhia de Saneamento Básico do Estado de São Paulo - Sabesp (SBS) is down 8.3% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely driver is Sabesp’s newly released second-quarter 2026 results, which showed a sharp drop in adjusted earnings even as revenue grew. Investors appear to be focusing on weaker profitability, rising operating and financing costs, and management’s acknowledgment of near-term pressure from customer-service investments and inflation in treatment supplies.

Details:

Sabesp released 2Q26 earnings on August 12, 2026, with adjusted EPS of R$0.33 versus R$0.57 in the prior-year quarter.

Adjusted net income fell 41.2% year over year to R$1.15 billion, while adjusted EBITDA declined 3.2% to R$3.5 billion.

The company said results were hurt by lower per-capita consumption, customer mix changes tied to expanded low-income discount rates, and higher upfront spending on call centers, communications, digital tools, and support channels.

Financing pressure also increased, with Sabesp citing a higher net debt balance of R$34 billion in 2Q26 versus R$23 billion in 2Q25, which weighed on financial results.

Sources:

Sabesp Investor Relations, SEC, MarketScreener

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$SBS Insider Trading Activity

$SBS insiders have traded $SBS stock on the open market 4 times in the past 6 months. Of those trades, 0 have been purchases and 4 have been sales.

Here’s a breakdown of recent trading of $SBS stock by insiders over the last 6 months:

DANIEL SZLAK (Chief Financial Officer) has made 0 purchases and 2 sales selling 7,381 shares for an estimated $208,882.
DE SOUSA ROBERVAL TAVARES (Engineering Officer) sold 5,900 shares for an estimated $169,979
DE SOUSA SAMANTA I.S. TAVARES (Inst. Rel. & Sustain. Officer) sold 5,700 shares for an estimated $163,077

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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$SBS Hedge Fund Activity

We have seen 157 institutional investors add shares of $SBS stock to their portfolio, and 141 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

IMPAX ASSET MANAGEMENT GROUP PLC added 18,612,609 shares (+55.2%) to their portfolio in Q2 2026, for an estimated $107,580,880
WCM INVESTMENT MANAGEMENT, LLC added 10,551,539 shares (+2379.7%) to their portfolio in Q1 2026, for an estimated $64,385,490
LETKO, BROSSEAU & ASSOCIATES INC removed 8,753,544 shares (-78.8%) from their portfolio in Q1 2026, for an estimated $53,414,125
ROYAL LONDON ASSET MANAGEMENT LTD added 7,269,799 shares (+54.7%) to their portfolio in Q2 2026, for an estimated $42,019,438
BANK OF AMERICA CORP /DE/ removed 6,906,086 shares (-60.6%) from their portfolio in Q1 2026, for an estimated $42,140,936
UBS GROUP AG added 4,878,041 shares (+68.0%) to their portfolio in Q2 2026, for an estimated $28,195,076
LEGAL & GENERAL GROUP PLC added 3,819,028 shares (+351.1%) to their portfolio in Q1 2026, for an estimated $23,303,708

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.