Value Judgment: Investment Opportunities and Risk Alerts on Limit-Down Stocks (April 3) | Securities Market Watch

Source: Titanium Media

1. Market Overview

On April 3, all three major A-share indexes adjusted across the board, and market sentiment was sluggish. The Shanghai Composite Index fell 1.00% to 3880.10 points, the Shenzhen Component Index fell 0.99% to 13352.90 points, and the ChiNext Index fell 0.73% to 3128.56 points. Total turnover across both exchanges was 1.66 trillion yuan, down by 186.5 billion yuan from the previous trading day, showing a heavy wait-and-see sentiment. More than 4,700 stocks across the market declined, while fewer than 1,100 advanced, resulting in an across-the-board sell-off pattern.

At the sector level, previously popular themes such as computing power and film exhibition chains saw collective pullbacks. Sectors like consumer electronics and home appliances led the declines. Funds showed a defensive posture: defensive sectors such as oil and gas and pork held up relatively better, while profit-taking pressure in high-priced theme stocks was released in a concentrated manner, accelerating valuation reversion.

2. Risk Warning of the First Trading-Limit Down

3. Sanmu Group (000632): A diversified business company; earnings losses + extremely overvalued valuation—panic selling by funds triggers the trading-limit down.

The company’s main businesses include import and export trading, urban industrial development, operational property management, and venture investment, among others. In the first three quarters of 2025, its attributable net profit was a loss of 142 million yuan, putting pressure on its ability to continue operations. Previously, its share price surged on hype around concepts such as superconductors; on April 3, it hit the limit down on high volume. The closing price was 4.40 yuan, down 10.02%. Over the past five trading days, its price change was -6.78%.

Risk warning: The stock deviated from Jiqian’s pricing by 114.29%, and its valuation is extremely overstated. It has continued to post losses without any fundamental improvement. Although it is diversified, it lacks core competitiveness. Prior theme-driven speculation has already drained expectations; the pressure from valuation reversion will be extremely high going forward. Investors should firmly avoid it.

2. Tianshun Co., Ltd. (002800): A logistics and transportation company; weak fundamentals + overvalued valuation—shifts in market sentiment trigger the trading-limit down.

The company focuses on logistics and transportation services, with core businesses including supply-chain management and the operation of logistics parks. In 2025, growth in its performance was weak, and intensified industry competition led to a decline in profitability. Previously, its share price rose due to concepts such as the unified big market. On April 3, it hit the trading-limit down along with the broader market adjustment. The closing price was 18.62 yuan, down 10.00%. Over the past five trading days, its price change was -5.63%.

Risk warning: The stock deviated from Jiqian’s pricing by 78.74%, with its valuation significantly overstated. Growth in its main business is weak, and competition in the industry is fierce. Earlier concept speculation caused the stock price to drift away from fundamentals. There is a high risk of a pullback going forward—do not blindly bottom-fish.

3. Lianhuan Pharmaceuticals (600513): A chemical pharmaceutical company; expected pre-loss of earnings + relatively high valuation—sector adjustment in pharma triggers the trading-limit down.

The company’s main businesses include R&D, production, and sales of chemical drugs. Its products cover multiple categories such as drugs for the urinary system, antihistamines, and cardiovascular drugs. In 2025, it is expected to record an attributable net profit loss of between 83 million yuan and 99 million yuan, representing a sharp year-on-year decline. On April 3, it hit the trading-limit down along with the pharma sector’s adjustment. The closing price was 27.68 yuan, down 9.98%. Over the past five trading days, its price change was 18.90%.

Risk warning: The stock deviated from Jiqian’s pricing by 54.76%, with its valuation still on the high side. It has continued to post losses, with a sharp decline in gross margin. The prior surge in the stock price has severely diverged from fundamentals. There will be substantial pressure from valuation reversion going forward; investors should be alert to further pullbacks.

3. Market Summary and Investment Suggestions

On April 3, all three major A-share indexes adjusted across the board. The Shanghai Composite Index fell below the 3900-point threshold, and the broad market decline was evident. Turnover shrank, and risk-avoidance sentiment among funds warmed up. Pullbacks in popular sectors such as computing power occurred, while defensive sectors such as oil and gas and pork held up better. Valuation reversion accelerated for high-level theme stocks.

All three stocks that hit the trading-limit down that day share common traits: severe valuation divergence (deviation of over 54%), weak fundamentals, and reliance on theme-driven speculation. This trading-limit down is an inevitable result of the market’s sentiment shift and valuation reversion. Among them, Sanmu Group’s risk is most prominent (deviation as high as 114.29%).

Investment suggestions: Adhere to the principles of “profits are king and valuation is reasonable.” Focus on undervalued, high-quality targets. Firmly avoid stocks with high deviation and those with massive earnings losses. Take a cautious stance toward targets with inflated valuations, control position sizes, and prioritize positioning in defensive undervalued sectors such as oil and gas and public utilities. Wait until valuations in the growth sector revert, and then participate when opportunities arise.

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