Transportadora de Gas del Sur SA TGS (TGS)
TGS moved a median of +0.15% 30 minutes after news, and +0.21% by the close. How TGS actually reacts to news — the realized, point-in-time move the market made, measured across 91 labeled events over the last three years with zero look-ahead.
TGS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.19% | 65% | 86 |
| 30-min | +0.15% | 62% | 91 |
| 60-min | +0.26% | 67% | 91 |
| to close | +0.21% | 62% | 91 |
| Middle 50% of TGS reactions | -0.43% to +1.08% |
|---|---|
| Median reaction (30-min) | +0.15% |
| Measured reactions | 91 |
Half of all Transportadora de Gas del Sur SA TGS news events land between -0.43% and +1.08% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How TGS reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 20 | -0.22% | 35% | -0.30% |
| Analyst downgrades | 20 | -0.39% | 40% | +0.16% |
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 TGS ranks against every other measured name →
That’s how TGS usually reacts — get an email when it moves on news →Email me when TGS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TGS's baseline. Nothing else.
Recent TGS events, each with its measured reaction.
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the TGS section they belong to.
Where else TGS is measured.
TGS earnings → · Analyst actions → · SEC filings →
Other Utilities names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Capital Power Corp (CPX_TSE) | 99 | +0.11% | 61% |
| CGE ENERGY INC (CGEI) | 95 | 0.00% | 25% |
| PNM Resources, Inc. (Holding Co.) (PNM) | 88 | -0.04% | 45% |
| RUBIS ADR (RBSFY) | 87 | 0.00% | 3% |
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 Utilities names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Transportadora de Gas del Sur SA TGS's median reaction calculated?
Every labeled TGS 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 91 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. 62% of TGS'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 TGS'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.