SK Telecom Co., Ltd. (SKM)
SKM moved a median of -0.09% 30 minutes after news, and -0.08% by the close. How SKM actually reacts to news — the realized, point-in-time move the market made, measured across 158 labeled events over the last three years with zero look-ahead.
SKM’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.04% | 42% | 158 |
| 30-min | -0.09% | 42% | 158 |
| 60-min | -0.09% | 44% | 158 |
| to close | -0.08% | 47% | 158 |
| Middle 50% of SKM reactions | -0.44% to +0.29% |
|---|---|
| Median reaction (30-min) | -0.09% |
| Measured reactions | 158 |
Half of all SK Telecom Co., Ltd. news events land between -0.44% and +0.29% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How SKM reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 25 | -0.13% | 44% | +0.32% |
| Analyst downgrades | 36 | -0.02% | 44% | -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. 2 further classes were observed with fewer than 10 measured events and are not published. See how SKM ranks against every other measured name →
That’s how SKM usually reacts — get an email when it moves on news →Email me when SKM moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SKM's baseline. Nothing else.
Recent SKM events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K SK TELECOM CO LTD For: Oct 14 | SEC filing · Form 6-K | SEC EDGAR | +0.53% | -0.03% | |
| Form 6-K SK TELECOM CO LTD For: Sep 16 | SEC filing · Form 6-K | SEC EDGAR | +0.27% | -1.48% | |
| Form 6-K SK TELECOM CO LTD For: Sep 02 | SEC filing · Form 6-K | SEC EDGAR | +0.01% | -1.15% | |
| Form 6-K SK TELECOM CO LTD For: Aug 27 | SEC filing · Form 6-K | SEC EDGAR | -1.43% | -1.30% | |
| SK Telecom Launches AI Data Center Infrastructure Company 'SK Horizon' and Secures Investments from KKR and IMM | Press release | PR Newswire | -1.43% | -1.30% | |
| Form 6-K SK TELECOM CO LTD For: Aug 07 | SEC filing · Form 6-K | SEC EDGAR | +0.40% | -2.23% | |
| Form 6-K SK TELECOM CO LTD For: Aug 05 | SEC filing · Form 6-K | SEC EDGAR | +1.10% | -1.25% | |
| Form 6-K SK TELECOM CO LTD For: Jul 29 | SEC filing · Form 6-K | SEC EDGAR | +0.47% | -0.64% | |
| Form 6-K/A SK TELECOM CO LTD For: Jul 24 | SEC filing · Form 6-K | SEC EDGAR | -0.35% | -2.81% | |
| Form 6-K SK TELECOM CO LTD For: Jul 23 | SEC filing · Form 6-K | SEC EDGAR | -1.26% | -4.35% | |
| Form 6-K SK TELECOM CO LTD For: Jul 10 | SEC filing · Form 6-K | SEC EDGAR | -0.51% | -0.42% | |
| SK Telecom Pursues 15GW AI Data Center Buildout, Aiming to Become Asia's AI Infrastructure Hub | Press release | PR Newswire | +0.51% | +1.67% | |
| Form 6-K SK TELECOM CO LTD For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.10% | +1.80% | |
| Form 6-K SK TELECOM CO LTD For: Jun 26 | SEC filing · Form 6-K | SEC EDGAR | -0.63% | -2.20% | |
| Form 6-K SK TELECOM CO LTD For: Jun 15 | SEC filing · Form 6-K | SEC EDGAR | -1.03% | -1.23% | |
| Form 6-K SK TELECOM CO LTD For: Jun 08 | SEC filing · Form 6-K | SEC EDGAR | -0.07% | +2.77% | |
| Form 6-K SK TELECOM CO LTD For: May 29 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | -0.53% | |
| Form 6-K SK TELECOM CO LTD For: May 18 | SEC filing · Form 6-K | SEC EDGAR | -0.58% | -2.94% | |
| Form 6-K SK TELECOM CO LTD For: May 07 | SEC filing · Form 6-K | SEC EDGAR | -1.58% | -1.89% | |
| Form 6-K SK TELECOM CO LTD For: Apr 30 | SEC filing · Form 6-K | SEC EDGAR | -0.55% | +3.06% | |
| Form 20-F SK TELECOM CO LTD For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -1.03% | +0.03% | |
| SK TELECOM CO. LTD. FILES ITS ANNUAL REPORT ON FORM 20-F | Press release | PR Newswire | -1.03% | +0.03% | |
| Form 6-K SK TELECOM CO LTD For: Apr 27 | SEC filing · Form 6-K | SEC EDGAR | -0.11% | -0.67% | |
| SK Group Establishes Foundation for AI Collaboration with Vietnam | Press release | PR Newswire | -1.14% | +0.77% | |
| Form 6-K SK TELECOM CO LTD For: Apr 17 | SEC filing · Form 6-K | SEC EDGAR | +1.15% | +2.02% | |
| Form 6-K SK TELECOM CO LTD For: Mar 30 | SEC filing · Form 6-K | SEC EDGAR | -1.63% | -2.85% | |
| Form 6-K SK TELECOM CO LTD For: Mar 26 | SEC filing · Form 6-K | SEC EDGAR | -0.10% | -1.75% | |
| Form 6-K SK TELECOM CO LTD For: Mar 11 | SEC filing · Form 6-K | SEC EDGAR | -0.90% | -2.68% | |
| Form 6-K/A SK TELECOM CO LTD For: Mar 05 | SEC filing · Form 6-K | SEC EDGAR | +0.34% | -0.51% | |
| SK Telecom, Supermicro and Schneider Electric Sign MOU on Total Solutions for AI Data Center Deployment | Press release | PR Newswire | +0.14% | +7.18% | |
| SK Telecom Expands Global AI Partnerships at MWC Barcelona 2026 | Press release | PR Newswire | +0.40% | +1.46% | |
| SK Telecom CEO Unveils 'AI Native' Strategy at MWC26, Driving Korea's Leap in AI Innovation | Press release | PR Newswire | -0.93% | -1.11% | |
| Form 6-K SK TELECOM CO LTD For: Feb 25 | SEC filing · Form 6-K | SEC EDGAR | +0.44% | -2.06% | |
| Form 6-K SK TELECOM CO LTD For: Feb 05 | SEC filing · Form 6-K | SEC EDGAR | -0.83% | +3.61% | |
| Form 6-K SK TELECOM CO LTD For: Feb 04 | SEC filing · Form 6-K | SEC EDGAR | +1.59% | +0.17% | |
| SKT's Haein Gains Momentum as a Core Driver of Korea's AI Strategy | Press release | PR Newswire | +1.59% | +0.17% | |
| Form 6-K SK TELECOM CO LTD For: Jan 29 | SEC filing · Form 6-K | SEC EDGAR | +0.47% | -0.15% | |
| Form 6-K SK TELECOM CO LTD For: Jan 28 | SEC filing · Form 6-K | SEC EDGAR | +1.03% | +0.18% | |
| Form 6-K/A SK TELECOM CO LTD For: Dec 29 | SEC filing · Form 6-K | SEC EDGAR | -0.10% | +0.58% | |
| SK Telecom Unveils A.X K1, Korea's First 500B-Scale Hyperscale AI Model | Press release | PR Newswire | -0.10% | +0.58% | |
| Form 6-K SK TELECOM CO LTD For: Dec 12 | SEC filing · Form 6-K | SEC EDGAR | -0.25% | +0.40% | |
| Form 6-K SK TELECOM CO LTD For: Oct 30 | SEC filing · Form 6-K | SEC EDGAR | +0.25% | -0.64% | |
| Form 6-K SK TELECOM CO LTD For: Oct 23 | SEC filing · Form 6-K | SEC EDGAR | +0.05% | -0.75% | |
| Form 6-K SK TELECOM CO LTD For: Sep 25 | SEC filing · Form 6-K | SEC EDGAR | -0.46% | +0.00% | |
| Form 6-K SK TELECOM CO LTD For: Sep 11 | SEC filing · Form 6-K | SEC EDGAR | +0.14% | +0.46% | |
| Form 6-K SK TELECOM CO LTD For: Aug 06 | SEC filing · Form 6-K | SEC EDGAR | +0.18% | -0.22% | |
| Form 6-K SK TELECOM CO LTD For: Jul 30 | SEC filing · Form 6-K | SEC EDGAR | +0.02% | -0.81% | |
| Form 6-K SK TELECOM CO LTD For: Jul 25 | SEC filing · Form 6-K | SEC EDGAR | +0.72% | -0.09% | |
| Form 6-K SK TELECOM CO LTD For: Jul 07 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | -1.36% | |
| Form 6-K/A SK TELECOM CO LTD For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.99% | +1.04% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SKM section they belong to.
Where else SKM is measured.
SKM earnings → · Analyst actions → · SEC filings →
Other Communication Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Liberty Global Ltd. - Class B Common Shares (LBTYB) | 164 | 0.00% | 22% |
| PLDT Inc. Sponsored ADR (PHI) | 162 | -0.10% | 39% |
| Sify Technologies Limited - American Depository Shares (SIFY) | 146 | -0.21% | 36% |
| DISH Network Corporation - Class A (DISH) | 130 | +0.11% | 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 Communication Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is SK Telecom Co., Ltd.'s median reaction calculated?
Every labeled SKM 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 158 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. 42% of SKM'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 SKM'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.