UCloud-W (688158) Strong Performance Analysis: Driving Factors and Sustainability Assessment

UCloud-W (688158), a cloud computing company on the STAR Market, saw its strong performance on December 26, 2025 driven mainly by three factors:

1. Sector Trend Boost
   : The tech sector is in a core trend of AI computing power and domestic substitution. The STAR Market Composite ETF Penghua (589680) had a total net inflow of 108 million yuan over 5 consecutive days, reflecting continuous capital allocation to the tech sector [1].
2. Company’s Own Layout
   : UCloud is actively promoting localized computing power, having purchased products from 3 to 5 domestic chip manufacturers to diversify supply sources, aligning with the current industry trends of AI computing infrastructure and domestic substitution [2].
3. Institutional Expectation Support
   : Brokerage research indicates that this round of tech market is transitioning from valuation repair to performance support. The AI industry chain (computing power end, supporting facilities) has strong continuity, and UCloud as a cloud service provider benefits from the demand for computing power implementation [1].

In terms of price, the daily gain was close to the 20% upper limit of the STAR Market’s price fluctuation [1]; although specific trading volume data was not obtained, combined with the continuous net inflow of the STAR ETF, it is inferred that the trading volume increased significantly that day, and capital attention rose [1].

1. High Alignment with Industry Mainline
   : UCloud’s localized computing power layout is highly aligned with the core theme of the current tech sector, reflecting the market’s key attention to domestic computing infrastructure suppliers.
2. Significant Sector Linkage
   : Its strong performance forms a positive feedback with the capital inflow of the STAR ETF, reflecting institutional investors’ collective optimistic expectations for the tech sector market.
3. Transition from Valuation Repair to Performance Verification
   : The current tech market is in a critical stage, and the company’s subsequent fundamentals such as orders and performance will become the core support for the sustainability of the stock price.

: The AI computing power and domestic substitution themes have industry-level logical support. If the company makes breakthroughs in computing power layout and order acquisition in the future, it will further consolidate its competitiveness.
:

• High volatility risk under the STAR Market’s 20% price fluctuation limit [1];
• No latest financial data of the company has been obtained, so fundamental support needs further verification;
• The stock price has strong linkage with the tech sector; if sector sentiment cools down, it may face correction pressure.

UCloud-W (688158)'s strong performance on December 26 is the result of the combined effect of the AI computing power and domestic substitution themes in the tech sector and the company’s own layout. Institutional capital inflow shows the market’s optimistic expectations for the tech market. Investors should pay attention to the trend of the STAR Market Composite Index, the company’s fundamental news, and changes in sector sentiment, and rationally view the high volatility characteristics of the STAR Market.