SKM · SK Telecom Co., Ltd.

The thesis

SK Telecom's flat mobile business is being offset by an artificial-intelligence (AI) data-center build funded by outside investors, and the Q3 report, estimated for 4 November 2026, decides whether data-center revenue keeps growing. The American depositary receipt (ADR) closed at $31.82 on 28 October 2026, which is 30.4% below its 52-week high of $45.71 and just above the $31.60 invalidation level in the previous note.

The narrative is maturing: the Anthropic IPO story is well known, and the ADR has fallen from $36.79 on 2 October 2026 and $32.83 on 15 October 2026 without a new company filing or headline in that period. The price move leaves the case resting on two dated events, the Q3 numbers and the Anthropic marketing timetable, rather than on momentum.

Bullish and bearish views on SK Telecom Co., Ltd.

The bull case on SK Telecom Co., Ltd. (SKM), in brief: Outside capital funds the data-center build. The bear case: The core business is flat.

Bull case

• Outside capital funds the data-center build. On 27 August 2026 SK Telecom announced KRW 3.08 trillion of equity from KKR and the IMM Investment–Stonebridge consortium into SK Horizon. SK Telecom keeps 51%, with 318 MW planned across eight operating data centers plus Ulsan and Guro projects.
• Data-center revenue is nearly doubling. Second-quarter data-center revenue was KRW 136.2 billion, up 92.5% year over year, after KRW 131.4 billion in the first quarter (company results, 5 August 2026).
• An Anthropic listing could put a market price on a hidden asset. A Bloomberg-sourced report from 2 October 2026 says Anthropic could begin marketing an IPO as early as the week of 9 November 2026 at $1.8 trillion to $2 trillion. Hana Securities values SK Telecom's stake at about $2.9 billion, or 17.3% of its market capitalization.
• Operating income is rising. Second-quarter operating income was KRW 566.0 billion, up 67.3% year over year and up 5.29% from the first quarter (Form 6-K, 5 August 2026).
• The shares have cooled. The 14-day relative strength index was 36.3 on 28 October 2026, against 53.1 on 2 October 2026, and the three-month gain has narrowed to 1.2%.

Bear case

• The core business is flat. Second-quarter revenue was KRW 4.3591 trillion, up 0.5% year over year, and first-half revenue was down 0.47% (Form 6-K, 5 August 2026). Operating income growth was helped by a comparison with year-ago costs from the USIM data breach.
• Anthropic optimism may already be in the price. Per Korea Herald coverage in early October, one analyst argues much of the Anthropic optimism is already in the shares. The ADR rose more than 7% in early Seoul trading on 14 August 2026 on the stake story (Edaily) and has since lost that ground.
• The stake does not flow into earnings yet. One report notes that unrealized gains would appear in other comprehensive income and would not lift reported net income until shares are sold. The CEO said on 2 October 2026 that there are no plans to sell immediately.
• Half of future data-center growth goes to partners. After the SK Broadband split takes effect on 1 February 2027, KKR and IMM own 49% of SK Horizon. The deal needs regulatory clearance and the 15 January 2027 shareholder meeting.
• Other capital commitments remain. The September 2026 Form 6-K discloses a USD 480 million commitment to newly issued shares of SK hynix NAND Product Solutions Corp., payable on capital calls through 25 June 2030.

Price setup

The adjusted close on 28 October 2026 was $31.82, 30.4% below the 52-week high of $45.71. It is below the closes of $32.83 on 15 October 2026, $35.90 on 18 September 2026 and $34.80 on 5 August 2026, and well under the $40.29 close of 21 August 2026 that marks the top of the August–October range. The 14-day relative strength index of 36.3 is above the oversold zone below 30.

The nearest reference below is the late-July ADR level near $31.63 (AAII, 31 July 2026). The close of $31.82 sits only slightly above it, so the next few sessions test that level directly.

Crowding evidence is mixed. The early-October run to $36.79 on Anthropic news has been reversed, which argues against heavy new buying, and no short-interest or retail-flow figure is available for this note. The Q3 report is the nearest event risk: Earnings Whispers lists 4 November 2026 before the US open, while The Right Trader's estimate is 29 October 2026 and last year's Q3 report came on 30 October 2025, so the date is unconfirmed and could fall within days.

Catalysts, next 30 days

• ~9 November 2026 (est.): earliest Anthropic IPO marketing week. The date comes from a Bloomberg-sourced report of 2 October 2026 and no later report confirms it. A delay removes the newest attention driver.
• 15 January 2027: extraordinary general meeting on the SK Broadband split. This falls outside 30 days but gates the KKR and IMM funding.

Elapsed catalysts

• ~29 October 2026 to ~4 November 2026 (est.): Q3 2026 results. The company has not confirmed a date. The report shows whether data-center revenue growth stays near the 89.3% and 92.5% of the first two quarters and whether operating income holds as breach-cost comparisons fade. (passed 2d ago)

What would change the view

The case breaks if Q3 data-center revenue growth falls below 50% year over year, if operating income growth converges on the roughly flat revenue trend, or if the KKR and IMM agreement for SK Horizon is terminated or repriced. A postponed or sharply lower-valued Anthropic listing would remove the second leg of the story.

On price, a daily close below $31.60, under the late-July ADR level near $31.63, would end the case as written.

What it trades with

The ADR trades on Seoul's 017670 line plus the USD/KRW rate, so a weaker won can pull the NYSE price down while the Seoul shares hold. SK Square's roughly 20% holding of SK Hynix ties group sentiment to the memory cycle, though not SK Telecom's own income statement. The Anthropic stake links the shares to AI private-market valuations, and the data-center business links them to AI infrastructure spending sentiment in Korea.