Analysis of the Limit-Up Reasons and Market Performance of Yongyue Technology (603879)

Yongyue Technology (603879) hit the limit-up on December 29, 2025, with a closing price of 6.93 yuan and an increase of 10.0% [1]. The limit-up was mainly driven by two core catalysts: first, the speculation in the low-altitude economy/drone sector. The company’s subsidiary, Yongyue Intelligence, is engaged in drone manufacturing and application business, benefiting from relevant policy promotion [3]; second, the expectation of judicial auction has become the focus of short-term speculative funds [4].

In terms of price and trading volume, the trading volume on that day was 784,500 lots, the turnover was 538 million yuan, and the turnover rate was 21.83%, which was much higher than the normal level, indicating active capital transactions [1]. In terms of capital flow, the main funds sold a net of 46.8825 million yuan, indicating that the short-term market is dominated by speculative funds [1]. In terms of market sentiment, the speculative atmosphere is strong, and it forms a sector linkage with other low-altitude economy/drone concept stocks [4].

1. Concept speculation lacks fundamental support
   : The company’s main business is unsaturated resin (accounting for 99.79% of revenue), and the drone business only accounts for 0.16%, which is an edge business and has not formed a scale [3].
2. Performance continues to deteriorate
   : From January to September 2025, the net profit attributable to parent company was -9.2547 million yuan, and the overall performance has been continuously losing money, with weak fundamental support [3].
3. High short-term speculative risk
   : High turnover rate (21.83%) combined with net outflow of main funds indicates that the market is driven by short-term funds, and its sustainability is questionable [1].

• The proportion of drone business is extremely low, and concept speculation has no substantial performance support [3]
• Continuous performance losses and poor profitability [3]
• High turnover rate + net outflow of main funds, high short-term speculative risk [1]
• There is great pressure near the upper resistance level of 7.50 yuan, and the lower support level is 5.61 yuan [3]

• Driven by low-altitude economy policies, the drone business has potential development space
• Judicial auction events may bring short-term stock price fluctuation opportunities

The limit-up of Yongyue Technology is mainly driven by concept speculation and judicial auction expectations, with a strong speculative atmosphere in the market. The company’s fundamental support is weak, the scale of drone business is extremely small, and its performance has been continuously losing money, so the sustainability of the short-term market is low. Investors need to pay attention to the technical support level of 5.61 yuan and resistance level of 7.50 yuan, and carefully evaluate the risks.