Tenaris S.A. American Depositary Shares (TS)
TS moved a median of -0.10% 30 minutes after news, and 0.00% by the close. How TS actually reacts to news — the realized, point-in-time move the market made, measured across 277 labeled events over the last three years with zero look-ahead.
TS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.05% | 44% | 277 |
| 30-min | -0.10% | 44% | 277 |
| 60-min | 0.00% | 50% | 277 |
| to close | 0.00% | 49% | 277 |
| Middle 50% of TS reactions | -0.51% to +0.40% |
|---|---|
| Median reaction (30-min) | -0.10% |
| Measured reactions | 277 |
Half of all Tenaris S.A. American Depositary Shares news events land between -0.51% and +0.40% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How TS reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 28 | +0.16% | 61% | -0.08% |
| Analyst downgrades | 30 | +0.26% | 77% | -0.29% |
| Rating reiterations | 47 | +0.04% | 55% | -0.03% |
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 TS ranks against every other measured name →
That’s how TS usually reacts — get an email when it moves on news →Email me when TS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TS's baseline. Nothing else.
Recent TS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K TENARIS SA For: Aug 06 | SEC filing · Form 6-K | SEC EDGAR | +0.18% | -0.80% | |
| Form 6-K TENARIS SA For: Aug 05 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | -1.34% | |
| Form 6-K TENARIS SA For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | -1.34% | |
| Tenaris inaugurates new service center in Suriname to support TotalEnergies’s GranMorgu offshore project | Press release | GlobeNewswire | +0.04% | +0.42% | |
| Form SD TENARIS SA | SEC filing · Form SD | SEC EDGAR | +0.02% | +0.03% | |
| Form 6-K TENARIS SA For: May 12 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | +0.54% | |
| Shareholders approve all resolutions on the agendas of Tenaris’s Annual General Meeting and Extraordinary General Meeting of Shareholders | Press release | GlobeNewswire | +0.13% | +0.54% | |
| Form 6-K TENARIS SA For: May 07 | SEC filing · Form 6-K | SEC EDGAR | +0.35% | +2.00% | |
| Form 6-K TENARIS SA For: May 08 | SEC filing · Form 6-K | SEC EDGAR | +0.35% | +2.00% | |
| Form 6-K TENARIS SA For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | +0.46% | +0.62% | |
| Form 6-K TENARIS SA For: May 06 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | -0.17% | |
| Tenaris Announces 2026 First Quarter Results | Press release | GlobeNewswire | -1.40% | -0.25% | |
| Form 6-K TENARIS SA For: Apr 10 | SEC filing · Form 6-K | SEC EDGAR | -0.17% | +0.94% | |
| Form 20-F TENARIS SA For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | +0.47% | -0.29% | |
| Form 6-K TENARIS SA For: Mar 30 | SEC filing · Form 6-K | SEC EDGAR | +0.77% | -0.72% | |
| Form IRANNOTICE TENARIS SA | SEC filing · Form IRANNOTICE | SEC EDGAR | +0.47% | -0.29% | |
| Form 6-K TENARIS SA For: Mar 05 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | +0.34% | |
| Form 6-K TENARIS SA For: Mar 03 | SEC filing · Form 6-K | SEC EDGAR | +0.13% | +0.39% | |
| Form 6-K TENARIS SA For: Feb 23 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | +0.15% | |
| Form 6-K TENARIS SA For: Feb 19 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | +0.15% | |
| Form 6-K TENARIS SA For: Feb 20 | SEC filing · Form 6-K | SEC EDGAR | +0.63% | +1.48% | |
| Form 6-K TENARIS SA For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | -1.53% | |
| Form 6-K TENARIS SA For: Feb 18 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | -1.53% | |
| Tenaris Announces 2025 Fourth Quarter and Annual Results | Press release | GlobeNewswire | -0.97% | +0.20% | |
| Form 6-K TENARIS SA For: Feb 13 | SEC filing · Form 6-K | SEC EDGAR | -0.35% | +0.59% | |
| Form 6-K TENARIS SA For: Jan 02 | SEC filing · Form 6-K | SEC EDGAR | -0.19% | +0.84% | |
| Form 6-K TENARIS SA For: Dec 26 | SEC filing · Form 6-K | SEC EDGAR | -0.27% | -0.18% | |
| Form 6-K TENARIS SA For: Dec 19 | SEC filing · Form 6-K | SEC EDGAR | +0.47% | -0.47% | |
| Form 6-K TENARIS SA For: Dec 17 | SEC filing · Form 6-K | SEC EDGAR | -0.47% | -3.58% | |
| Form 6-K TENARIS SA For: Dec 12 | SEC filing · Form 6-K | SEC EDGAR | +0.01% | -0.74% | |
| Form 6-K TENARIS SA For: Dec 05 | SEC filing · Form 6-K | SEC EDGAR | +0.56% | -0.34% | |
| Form 6-K TENARIS SA For: Nov 28 | SEC filing · Form 6-K | SEC EDGAR | +0.79% | +0.07% | |
| Form 6-K TENARIS SA For: Nov 21 | SEC filing · Form 6-K | SEC EDGAR | +0.28% | +0.25% | |
| Form 6-K TENARIS SA For: Nov 14 | SEC filing · Form 6-K | SEC EDGAR | +0.30% | -0.96% | |
| Form 6-K TENARIS SA For: Nov 02 | SEC filing · Form 6-K | SEC EDGAR | +0.01% | +1.45% | |
| Form 6-K TENARIS SA For: Oct 30 | SEC filing · Form 6-K | SEC EDGAR | -0.82% | -1.02% | |
| Form 6-K TENARIS SA For: Oct 29 | SEC filing · Form 6-K | SEC EDGAR | -0.82% | -1.02% | |
| Form 6-K TENARIS SA For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.82% | -1.02% | |
| Tenaris Announces 2025 Third Quarter Results | Press release | GlobeNewswire | -1.00% | +2.36% | |
| Form 6-K TENARIS SA For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.66% | +1.29% | |
| Tenaris completes USD600 million First Tranche of its Share Buyback Program | Press release | GlobeNewswire | +0.66% | +1.29% | |
| Form 6-K TENARIS SA For: Sep 26 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | +0.37% | |
| Form 6-K TENARIS SA For: Sep 19 | SEC filing · Form 6-K | SEC EDGAR | -1.12% | -0.03% | |
| Form 6-K TENARIS SA For: Sep 12 | SEC filing · Form 6-K | SEC EDGAR | -0.20% | +0.31% | |
| Form 6-K TENARIS SA For: Sep 05 | SEC filing · Form 6-K | SEC EDGAR | +0.23% | -1.10% | |
| Form 6-K TENARIS SA For: Aug 29 | SEC filing · Form 6-K | SEC EDGAR | -0.11% | -1.36% | |
| Form 6-K TENARIS SA For: Aug 22 | SEC filing · Form 6-K | SEC EDGAR | -0.27% | -0.93% | |
| Form 6-K TENARIS SA For: Aug 15 | SEC filing · Form 6-K | SEC EDGAR | -0.23% | +0.53% | |
| Form 6-K TENARIS SA For: Aug 08 | SEC filing · Form 6-K | SEC EDGAR | +0.27% | -1.26% | |
| Form 6-K TENARIS SA For: Aug 01 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | +0.09% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the TS section they belong to.
Where else TS is measured.
TS earnings → · Analyst actions → · SEC filings →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| SRC ENERGY INC (SRCI) | 279 | +0.06% | 51% |
| Ring Energy, Inc. (REI) | 278 | -0.30% | 39% |
| VIKING ENERGY GROUP INC (VKIN) | 275 | 0.00% | 36% |
| Patterson-UTI Energy, Inc. (PTEN) | 274 | +0.18% | 51% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Energy names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Tenaris S.A. American Depositary Shares's median reaction calculated?
Every labeled TS 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 277 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. 44% of TS'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 TS'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.