Analysis of the Strong Performance of Sun Cable (002300)

Sun Cable (002300) entered the strong stock pool mainly driven by the overall strength of the nuclear power sector. On December 12, 2025, multiple positive news emerged from China’s nuclear power projects: the world’s largest “Hualong One” nuclear power base was successfully connected to the grid in Zhangzhou [1], and the Zhaoyuan Nuclear Power Plant started construction at the same time. As a cable supplier for nuclear power equipment, Sun Cable directly benefited from the sector-wide uptrend [1].

Technical data shows that the stock has risen 77.26% in the past 20 trading days, with a single-day increase of 10.03% on December 16 [0]. The average daily trading volume during the same period was 87.95 million shares, significantly higher than the historical average, reflecting increased market capital attention [0].

Technically, it shows an upward trend, with resistance at 12.94 yuan, the next target at 13.73 yuan, and support at 10.40 yuan [0]. In terms of market sentiment, continuous volume-driven rises indicate strong buying interest, but the KDJ indicator issued an overbought warning, increasing short-term correction pressure [0].

Fundamental data reveals potential concerns: The current price-to-earnings ratio (P/E) is as high as 115.90 times, showing obvious overvaluation [0]; the net profit margin is only 0.65%, with extremely low profitability [0]. The company has issued a stock price fluctuation announcement, clearly stating that its operating conditions and external environment have not undergone major changes [2][3][4], indicating that the current rise lacks support from substantial fundamental improvements.

1. Significant Sector Linkage Effect
   : Sun Cable’s strong performance is not an isolated event but a chain reaction of the overall positive news in the nuclear power sector, with its business relevance being the core driving factor.
2. Obvious Short-term Speculative Characteristics
   : The ultra-high P/E ratio and extremely low net profit margin indicate that the stock price rise is more due to capital speculation rather than value enhancement, with a strong speculative atmosphere in the market.
3. Divergence Between Technicals and Fundamentals
   : The upward trend in technicals contrasts with the weakness in fundamentals, suggesting doubts about the sustainability of the market trend.

• Valuation Correction Risk
  : The high P/E ratio and severely mismatched net profit margin pose pressure for valuation regression.
• Overbought Correction Risk
  : The KDJ indicator is overbought, and profit-taking may occur in the short term.
• Lack of Fundamental Support
  : The company’s operations have not undergone substantial improvements; once sector enthusiasm fades, the stock price may fluctuate sharply.

• Continuation of Sector Positive News
  : If nuclear power projects progress beyond expectations, sector enthusiasm may continue, and the stock may still have short-term performance opportunities.

Sun Cable (002300)'s strong performance is mainly driven by positive news in the nuclear power sector. Technically, it shows an upward trend but with obvious overbought signals. Fundamentally, there are issues of overvaluation and low profitability, lacking long-term support. The current market trend has short-term speculative characteristics; investors need to pay attention to changes in sector enthusiasm and technical indicator signals.