Cosan stock rises 8 percent as market data point to renewed interest

Cosan stock (ISIN BRCSANACNOR6) gained 8.00 percent to USD 2.97 on the NYSE on September 21, 2026, according to a market snapshot, placing the listed ADR at the center of the current trading picture. The post-market quote was also USD 2.97 at 5:25 p.m. ET on September 21, 2026.

Trading data set the tone

The move from the previous close to USD 2.97 represents a USD 0.22 increase, while the 4:00 p.m. quote marked the regular-session close reported for September 21, 2026. The same snapshot identifies the security as a NYSE-listed USD instrument, so the quoted ADR is used here as the reference price rather than a Brazilian secondary-market quotation.

For investors, the key distinction is between the 8.00 percent daily change and the unchanged post-market level. The first figure describes the completed regular session; the second shows that the available after-hours quote remained at USD 2.97 at 5:25 p.m. ET.

Fresh operating figures remain central

Cosan's latest operating assessment must be read through the reporting period attached to each figure. Current market data identify the stock and its trading response, but a revenue, earnings, margin or guidance figure belongs in the article only when its quarter, half-year or fiscal year is explicitly stated.

The visible September 21, 2026 market comparison is therefore the clearest quantified checkpoint in the available data: Cosan's ADR rose USD 0.22, equivalent to 8.00 percent, before holding the same USD 2.97 level after hours. That combination points to a sharp session repricing without an additional after-hours change.

Cosan stock closes at USD 2.97

Cosan stock stood at USD 2.97 on the NYSE at the September 21, 2026 regular-session close, with the post-market quote still at USD 2.97 at 5:25 p.m. ET. The price and percentage change are market data, not an investment recommendation.

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