Prio stock posts a 50.67 percent year on year gain

Prio stock (Prio S.A.) closed at BRL 60.86 on B3 on September 23, 2026, up 0.66 percent from BRL 60.46. The share price was BRL 12.12 below its 52-week high of BRL 72.98, while the year-on-year gain reached 50.67 percent.

Yearly gain remains visible

The comparison with the previous year is the clearest market signal. Prio stock advanced 50.67 percent over that period, even though the latest session added only BRL 0.40, equivalent to 0.66 percent.

Trading activity also exceeded the recent average. Volume reached 12,504,200 shares on September 23, 2026, compared with an average of 7,519,093 shares, a difference of 4,985,107 shares.

Oil production drives the profile

Valor describes Prio as a Rio de Janeiro based company focused on oil and natural gas exploration, development and production. Its operating model centers on reservoir management and the redevelopment of mature oil fields.

That profile gives the stock a direct connection to production execution rather than a broad energy holding structure. For investors, the combination of a 50.67 percent year-on-year gain and a price still BRL 12.12 below the yearly high points to a market valuation shaped by both operating expectations and commodity sensitivity.

Price stays below yearly high

Prio had a market capitalization of BRL 49,143,138,041 on September 23, 2026. The B3 reference price was BRL 60.86, with the 52-week range extending from BRL 34.18 to BRL 72.98.

The companys investor relations calendar lists the 2Q26 earnings release for August 4, 2026, and the conference call for August 5, 2026, according to the Prio investor relations page. The next market assessment will therefore depend on production data, financial results and the distance to the BRL 72.98 yearly high.