Cosan S.A. ADS (CSAN)
CSAN moved a median of 0.00% 30 minutes after news, and +0.25% by the close. How CSAN actually reacts to news — the realized, point-in-time move the market made, measured across 106 labeled events over the last three years with zero look-ahead.
CSAN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 50% | 103 |
| 30-min | 0.00% | 51% | 105 |
| 60-min | 0.00% | 47% | 105 |
| to close | +0.25% | 51% | 105 |
| Middle 50% of CSAN reactions | -0.91% to +0.72% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 106 |
Half of all Cosan S.A. ADS news events land between -0.91% and +0.72% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How CSAN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 14 | +0.06% | 50% | -1.32% |
| Analyst downgrades | 10 | -1.37% | 30% | +0.88% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 3 further classes were observed with fewer than 10 measured events and are not published. See how CSAN ranks against every other measured name →
That’s how CSAN usually reacts — get an email when it moves on news →Email me when CSAN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CSAN's baseline. Nothing else.
Recent CSAN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 25 Cosan S.A. | SEC filing · Form 25 | SEC EDGAR | -0.17% | -0.66% | |
| Form 6-K Cosan S.A. For: Sep 08 | SEC filing · Form 6-K | SEC EDGAR | +0.84% | -2.37% | |
| Form 6-K Cosan S.A. For: Aug 20 | SEC filing · Form 6-K | SEC EDGAR | -0.38% | -2.68% | |
| Cosan S.A. Announces Material Fact | Press release | GlobeNewswire | +1.43% | +3.67% | |
| Form 6-K Cosan S.A. For: Aug 18 | SEC filing · Form 6-K | SEC EDGAR | +1.43% | +3.67% | |
| Form 6-K Cosan S.A. For: Aug 14 | SEC filing · Form 6-K | SEC EDGAR | +0.40% | +0.80% | |
| Form 6-K Cosan S.A. For: Jul 09 | SEC filing · Form 6-K | SEC EDGAR | -0.17% | +2.03% | |
| Form 6-K Cosan S.A. For: Mar 17 | SEC filing · Form 6-K | SEC EDGAR | -0.32% | -1.09% | |
| Form 6-K Cosan S.A. For: May 15 | SEC filing · Form 6-K | SEC EDGAR | -2.72% | -2.01% | |
| Form 6-K Cosan S.A. For: May 14 | SEC filing · Form 6-K | SEC EDGAR | -2.72% | -2.01% | |
| Form 6-K Cosan S.A. For: May 07 | SEC filing · Form 6-K | SEC EDGAR | -0.46% | -3.69% | |
| Form 6-K Cosan S.A. For: Feb 27 | SEC filing · Form 6-K | SEC EDGAR | +1.00% | +5.25% | |
| Form 6-K Cosan S.A. For: Apr 10 | SEC filing · Form 6-K | SEC EDGAR | -0.35% | +1.15% | |
| Form 20-F Cosan S.A. For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -0.35% | +1.15% | |
| Form 6-K Cosan S.A. For: Mar 11 | SEC filing · Form 6-K | SEC EDGAR | -0.52% | -3.25% | |
| Form 6-K Cosan S.A. For: Mar 09 | SEC filing · Form 6-K | SEC EDGAR | -2.43% | +4.86% | |
| Form 6-K Cosan S.A. For: Mar 05 | SEC filing · Form 6-K | SEC EDGAR | -0.70% | -1.16% | |
| Form 6-K Cosan S.A. For: Feb 23 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | -2.08% | |
| Form 6-K Cosan S.A. For: Feb 02 | SEC filing · Form 6-K | SEC EDGAR | +0.90% | -0.22% | |
| Form 6-K Cosan S.A. For: Jan 30 | SEC filing · Form 6-K | SEC EDGAR | +0.22% | -1.79% | |
| Form 6-K Cosan S.A. For: Jan 16 | SEC filing · Form 6-K | SEC EDGAR | +1.33% | +1.86% | |
| Form 6-K Cosan S.A. For: Dec 30 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | -1.00% | |
| Form 6-K Cosan S.A. For: Dec 22 | SEC filing · Form 6-K | SEC EDGAR | +0.51% | -0.76% | |
| Form 6-K Cosan S.A. For: Dec 15 | SEC filing · Form 6-K | SEC EDGAR | -1.10% | -5.04% | |
| Form 6-K Cosan S.A. For: Nov 14 | SEC filing · Form 6-K | SEC EDGAR | +2.13% | -3.05% | |
| Form 6-K Cosan S.A. For: Nov 14 | SEC filing · Form 6-K | SEC EDGAR | — | +0.00% | |
| Form 6-K Cosan S.A. For: Nov 10 | SEC filing · Form 6-K | SEC EDGAR | -1.83% | +0.00% | |
| Form 6-K Cosan S.A. For: Nov 04 | SEC filing · Form 6-K | SEC EDGAR | +1.62% | -0.23% | |
| Form 6-K Cosan S.A. For: Oct 30 | SEC filing · Form 6-K | SEC EDGAR | -1.12% | +2.92% | |
| Form 6-K Cosan S.A. For: Oct 24 | SEC filing · Form 6-K | SEC EDGAR | -1.24% | +2.02% | |
| Form 6-K Cosan S.A. For: Sep 21 | SEC filing · Form 6-K | SEC EDGAR | -2.39% | +0.87% | |
| Form 6-K Cosan S.A. For: Sep 04 | SEC filing · Form 6-K | SEC EDGAR | — | +0.29% | |
| Form 6-K Cosan S.A. For: Aug 14 | SEC filing · Form 6-K | SEC EDGAR | +1.41% | +1.25% | |
| Form 6-K Cosan S.A. For: May 15 | SEC filing · Form 6-K | SEC EDGAR | -1.89% | +0.57% | |
| Form 6-K Cosan S.A. For: Apr 30 | SEC filing · Form 6-K | SEC EDGAR | -0.91% | -2.55% | |
| Form 20-F Cosan S.A. For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -0.91% | -2.55% | |
| Form 6-K Cosan S.A. For: Mar 10 | SEC filing · Form 6-K | SEC EDGAR | -0.61% | -1.23% | |
| Form 6-K Cosan S.A. For: Feb 26 | SEC filing · Form 6-K | SEC EDGAR | +1.46% | +6.03% | |
| Form 6-K Cosan S.A. For: Feb 24 | SEC filing · Form 6-K | SEC EDGAR | +0.24% | +0.00% | |
| Form 6-K Cosan S.A. For: Feb 11 | SEC filing · Form 6-K | SEC EDGAR | -0.20% | +0.59% | |
| Form 6-K Cosan S.A. For: Feb 10 | SEC filing · Form 6-K | SEC EDGAR | -0.59% | +1.57% | |
| Form 6-K Cosan S.A. For: Jan 31 | SEC filing · Form 6-K | SEC EDGAR | -0.54% | -2.53% | |
| Form 6-K Cosan S.A. For: Jan 29 | SEC filing · Form 6-K | SEC EDGAR | +0.76% | +6.30% | |
| Form 6-K Cosan S.A. For: Jan 16 | SEC filing · Form 6-K | SEC EDGAR | -2.50% | -2.67% | |
| Form 6-K Cosan S.A. For: Nov 13 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | -1.52% | |
| Form 6-K Cosan S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | -1.52% | |
| Form 6-K Cosan S.A. For: Nov 08 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | -0.13% | |
| Form 20-F Cosan S.A. For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -0.25% | +1.89% | |
| Form 6-K Cosan S.A. For: Oct 21 | SEC filing · Form 6-K | SEC EDGAR | -0.06% | -0.49% | |
| Form 6-K Cosan S.A. For: Oct 09 | SEC filing · Form 6-K | SEC EDGAR | -0.68% | +0.91% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CSAN section they belong to.
Where else CSAN is measured.
CSAN earnings → · Analyst actions → · SEC filings →
Every ticker we measure the same way24
Apple (AAPL)
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Tesla (TSLA)
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Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
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Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
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Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
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Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Cosan S.A. ADS's median reaction calculated?
Every labeled CSAN news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 106 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 51% of CSAN's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does CSAN's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.