Exhibit 99.1

Atour Lifestyle Holdings Limited Reports Second Quarter 2026 Unaudited Financial Results

SHANGHAI, China, August 20, 2026 -- Atour Lifestyle Holdings Limited (“Atour” or the “Company”) (NASDAQ: ATAT), a leading lifestyle group in China, today announced its unaudited financial results for the second quarter ended June 30, 2026.

Second Quarter of 2026 Highlights

As of June 30, 2026, there were 2,175 hotels with a total of 242,526 hotel rooms in operation across Atour’s hotel network, representing increases of 19.2% and 18.4% year-over-year in terms of the number of hotels and hotel rooms, respectively. As of June 30, 2026, there were 811 manachised hotels under development in our pipeline.

The average daily room rate⁴ (“ADR”) was RMB438 for the second quarter of 2026, compared with RMB433 for the same period of 2025 and RMB427 for the previous quarter.

The occupancy rate⁴ was 76.2% for the second quarter of 2026, compared with 76.4% for the same period of 2025 and 70.6% for the previous quarter.

The revenue per available room⁴ (“RevPAR”) was RMB345 for the second quarter of 2026, compared with RMB343 for the same period of 2025 and RMB312 for the previous quarter.

¹ Adjusted net income (non-GAAP) is defined as net income excluding share-based compensation expenses.

² EBITDA (non-GAAP) is defined as earnings before interest expense, interest income, income tax expense and depreciation and amortization.

³ Adjusted EBITDA (non-GAAP) is defined as EBITDA excluding share-based compensation expenses.

⁴ Excludes hotel rooms that became unavailable due to temporary hotel closures. ADR and RevPAR are calculated based on tax-inclusive room rates.

“ADR” refers to the average daily room rate, which means room revenue divided by the number of rooms in use for a given period;

“Occupancy rate” refers to the number of rooms in use divided by the number of available rooms for a given period;

“RevPAR” refers to revenue per available room, which is calculated by total revenues during a period divided by the number of available rooms of our hotels during the same period.

The revenue generated from our retail business was RMB1,575 million for the second quarter of 2026, representing an increase of 63.2% year-over-year.

“In the second quarter of 2026, we steadily advanced our new three-year ‘Chinese Experience, Brand-Led Excellence’ strategy, achieving sustained breakthroughs in both our hotel and retail businesses,” said Mr. Haijun Wang, Founder, Chairman and CEO of Atour. “For our hotel business, we adhered to the ‘quality-first’ principle and strictly controlled project quality. By the end of the second quarter, our total number of hotels in operation reached 2,175. We continued to refine our products and experiences around each brand’s distinct positioning, and our differentiated brand strengths gained broad market recognition. Meanwhile, our retail business sustained its strong growth momentum. Retail revenue was RMB1.57 billion in the second quarter, up 63% year-over-year. Atour Planet further consolidated its advantages in core categories and continued to expand its product portfolio.”

“Looking ahead, we remain committed to a long-term approach, continuously improving product quality around user needs, strengthening brand and organizational capabilities, further consolidating the competitiveness of both our hotel and retail businesses, and achieving higher-quality sustainable development,” concluded Mr. Wang.

Second Quarter of 2026 Unaudited Financial Results

Net revenues. Our net revenues for the second quarter of 2026 increased by 41.4% to RMB3,490 million (US$514 million) from RMB2,469 million for the same period of 2025. The increase was mainly driven by growth in the manachised hotel and retail businesses.

Operating costs and expenses for the second quarter of 2026 were RMB2,761 million (US$407 million), including RMB10 million share-based compensation expenses, compared with RMB1,875 million, including RMB2 million share-based compensation expenses for the same period of 2025.

Other operating income, net for the second quarter of 2026 was RMB44 million (US$6 million), compared with RMB3 million for the same period of 2025. The increase was mainly due to an increase in income from government subsidies.

Income from operations for the second quarter of 2026 was RMB773 million (US$114 million), compared with RMB596 million for the same period of 2025.

Income tax expense for the second quarter of 2026 was RMB255 million (US$38 million), compared with RMB192 million for the same period of 2025.

Net income for the second quarter of 2026 was RMB548 million (US$81 million), representing an increase of 29.0% compared with RMB425 million for the same period of 2025.

Adjusted net income (non-GAAP) for the second quarter of 2026 was RMB558 million (US$82 million), representing an increase of 30.8% compared with RMB427 million for the same period of 2025.

Basic and diluted income per share/American depositary share (ADS). For the second quarter of 2026, basic income per share was RMB1.35 (US$0.20), and diluted income per share was RMB1.33 (US$0.20). For the second quarter of 2026, basic income per ADS was RMB4.05 (US$0.60), and diluted income per ADS was RMB3.99 (US$0.60).

EBITDA (non-GAAP) for the second quarter of 2026 was RMB810 million (US$119 million), representing an increase of 33.3% compared with RMB608 million for the same period of 2025.

Adjusted EBITDA (non-GAAP) for the second quarter of 2026 was RMB821 million (US$121 million), representing an increase of 34.6% compared with RMB610 million for the same period of 2025.

Cash flows. Operating cash inflow for the second quarter of 2026 was RMB835 million (US$123 million). Investing cash inflow for the second quarter of 2026 was RMB282 million (US$42 million). Financing cash outflow for the second quarter of 2026 was RMB861 million (US$127 million).

Cash and cash equivalents and restricted cash. As of June 30, 2026, the Company had a total balance of cash and cash equivalents and restricted cash of RMB3.9 billion (US$582 million).

Debt financing. As of June 30, 2026, the Company had total outstanding borrowings of RMB237 million (US$35 million).

Outlook

For the full year of 2026, the Company currently expects total net revenues to increase by 30% compared with the full year of 2025.

This outlook is based on current market conditions and the Company’s preliminary estimates, which are subject to changes.

Conference Call

The Company will host a conference call at 7:00 AM U.S. Eastern time on Thursday, August 20, 2026 (or 7:00 PM Beijing/Hong Kong time on the same day).

A live webcast of the conference call will be available on the Company’s investor relations website at https://ir.yaduo.com, and a replay of the webcast will be available following the session.

For participants who wish to join the conference call via telephone, please pre-register using the link provided below. Upon registration, each participant will receive a set of participant dial-in numbers and a personal PIN to join the conference call.

Details for the conference call are as follows:

Event Title: Atour Second Quarter of 2026 Earnings Conference Call Pre-registration Link: https://register-conf.media-server.com/register/BIe8138a580f784759b9c45dda51c9d597

Use of Non-GAAP Financial Measures

To supplement the Company’s unaudited consolidated financial results presented in accordance with U.S. Generally-Accepted Accounting Principles (“GAAP”), the Company uses the following non-GAAP measures defined as non-GAAP financial measures by the U.S. Securities and Exchange Commission: adjusted net income, which is defined as net income excluding share-based compensation expenses; adjusted net income per ordinary share - Diluted, which is defined as net income attributable to the Company excluding share-based compensation expenses divided by the number of weighted average ordinary shares used in calculating net income per ordinary share - Diluted; EBITDA, which is defined as earnings before interest income, interest expense, income tax expense and depreciation and amortization; adjusted EBITDA, which is defined as EBITDA excluding share-based compensation expenses. The presentation of these non-GAAP financial measures is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with U.S. GAAP. For more information on these non-GAAP financial measures, please see the table captioned “Reconciliations of GAAP and non-GAAP results” set forth at the end of this release.

The Company believes that EBITDA is widely used by other companies in the hospitality industry and may be used by investors as a measure of the financial performance. Given the significant investments that the Company has made in leasehold improvements and other fixed assets of leased hotels, depreciation and amortization comprises a significant portion of the Company’s cost structure. The Company believes that EBITDA will provide investors with a useful tool for comparability between periods because it eliminates depreciation and amortization attributable to capital expenditures. Adjusted net income, adjusted net income per ordinary share – Diluted, and adjusted EBITDA provide meaningful supplemental information regarding the Company’s performance by excluding share-based compensation expenses, as the investors can better understand the Company’s performance and compare business trends among different reporting periods on a consistent basis. The Company believes that both management and investors benefit from referring to these non-GAAP financial measures in assessing the Company’s performance and when planning and forecasting future periods. These non-GAAP financial measures also facilitate management’s internal comparisons to the Company’s historical performance. The Company believes these non-GAAP financial measures are also useful to investors in allowing for greater transparency with respect to supplemental information used regularly by Company management in financial and operational decision-making. The accompanying tables provide more details on the reconciliations between GAAP financial measures that are most directly comparable to non-GAAP financial measures.

The use of these non-GAAP measures has certain limitations, as the excluded items have been and will be incurred, and are not reflected in the presentation of these non-GAAP measures. Each of these items should also be considered in the overall evaluation of the results. The Company compensates for these limitations by providing the disclosure of the relevant items both in its reconciliations to the U.S. GAAP financial measures and in its consolidated financial statements, all of which should be considered when evaluating the performance of the Company.

In addition, these measures may not be comparable to similarly titled measures utilized by other companies, as these companies may not calculate these measures in the same manner as the Company does.

About Atour Lifestyle Holdings Limited

Atour Lifestyle Holdings Limited (NASDAQ: ATAT) is a leading lifestyle group in China that operates both hospitality and retail businesses. As a leader in quality living, Atour is dedicated to creating an intimate ambiance where people can warmly connect. Guided by its people-serving philosophy, Atour continuously refines its products and services to curate exceptional experiences for every user.

For more information, please visit https://ir.yaduo.com.

Investor Relations Contact

Atour Lifestyle Holdings Limited

Email: ir@yaduo.com

Christensen Advisory

Email: atour@christensencomms.com

Tel: +86-10-5900-1548

—Financial Tables and Operational Data Follow—

ATOUR LIFESTYLE HOLDINGS LIMITED

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(All amounts in thousands, except share data and per share data, or otherwise noted)

¹ Translations of balances in the consolidated financial statements from RMB into US$ for the second quarter of 2026 and as of June 30, 2026 are solely for readers’ convenience and were calculated at the rate of US$1.00=RMB 6.7851, representing the exchange rate set forth in the H.10 statistical release of the Federal Reserve Board on June 30, 2026.

ATOUR LIFESTYLE HOLDINGS LIMITED

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (CONTINUED)

(All amounts in thousands, except share data and per share data, or otherwise noted)

ATOUR LIFESTYLE HOLDINGS LIMITED

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(All amounts in thousands, except share data and per share data, or otherwise noted)

ATOUR LIFESTYLE HOLDINGS LIMITED

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(All amounts in thousands, except share data and per share data, or otherwise noted)

ATOUR LIFESTYLE HOLDINGS LIMITED

UNAUDITED RECONCILIATION OF GAAP AND NON-GAAP RESULTS

(All amounts in thousands, except share data and per share data, or otherwise noted)

² The share-based compensation expenses were recorded at entities in PRC. Share-based compensation expenses were non-deductible expenses in PRC. Therefore, there is no tax impact for share-based compensation expenses adjustment for non-GAAP financial measure

Key Operating Data

³ Excludes hotel rooms that became unavailable due to temporary hotel closures. ADR and RevPAR are calculated based on tax-inclusive room rates.

⁴ For any given period, we define “same-hotel” as a hotel that has operated for more than 18 calendar months as of the 15th day (inclusive) of any month within that period. The OCC, ADR and RevPAR presented above represent such metrics generated by “same hotels” in the given period, compared to the corresponding metrics generated by these “same hotels” during the same period in 2025.