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学习笔记|如何计算PEG值

  • 2026-05-12 18:50:35
学习笔记|如何计算PEG值

尝试用“鼎泰高科”来练习计算一家公司是否高估

计算 PEG(市盈率相对盈利增长比率)是衡量一家高增长公司(鼎泰高科)股价是否过贵的最核心方法。

1. 计算 PEG 的核心数据清单

指标

  最新数值 (截至2026年5月) 

数据来源/说明

当前股价

237.97

2025年EPS (每股收益)

1.06 元

2025年归母净利润 4.34 亿 / 总股本 4.1 亿

2026年预测EPS

2.66 元

基于机构预测2026年净利润10.9 亿测算

PE (市盈率)

约 93 倍 

该股票页可看动态市盈率

G (业绩增速)

约 120%

以下是详细的测算步骤:

2. 基准业绩增速(G)的计算

在计算 PEG 时,业绩增速G通常取全年的预期净利润增长率。

2025年基数:2025年全年归母净利润为4.34 亿

2026年预测:2026年 Q1 净利润为2.606 亿。按照一季度的强劲势头,市场机构一致预期(如申万宏源、华创证券等)2026年全年的净利润将达到8.4 亿至 10.9 亿之间。

计算增速 (G):

如果按保守的 8.4 亿计算:G = (8.4 - 4.34) / 4.34 =93.5%
如果按乐观的 10.9 亿计算:G = (10.9 - 4.34) / 4.34 =151%

3. PEG 的最终测算

PE (动态):查到的93.61

G (增速):取市场共识的中值,即120%左右。

PEG = PE/G = 93.61/120=0.78


4. 这意味着什么?“上涨10倍”后还有价值吗?

从这组数据中,可以读出三个极其重要的信号:

第一:业绩确实在“消化”估值

虽然股价涨了10倍,看起来高不可攀,但PEG 依然小于 1 (0.78)。这说明:股价的上涨不是单纯靠炒作(吹泡泡),而是被一季度翻了 2.5 倍的净利润硬生生“顶”上去的。只要业绩增长不掉队,这个 PE 就不算高。

第二:单季利润的量级跃迁

2025年 Q3:1.226 亿

2025年 Q4:1.5 亿左右

2026年 Q1:2.606 亿

重点: Q1 的净利润几乎是去年三季度的两倍。这种斜率意味着公司已经从“稳步增长”进入了“指数级爆发”。通常这是因为 AI 服务器的高阶 PCB 钻针进入了大规模放量期。

第三:动态 PE (93.61) 的潜台词

目前 93 倍的 PE 在 PCB 耗材行业属于“天花板”级别。市场之所以愿意给这么高,是因为看中了它50亿智能制造总部基地的扩张预期(再造一个鼎泰)。


5. 操作层面的核心风险提示

虽然 PEG 看起来很美,但要特别注意:

获利盘兑现:“10倍股”意味着底部的筹码成本可能只有 20-30 元,现在的 200 多元对于大资金来说,随时有获利了结的冲动。

现金流隐忧:结合“每股经营现金流为负(-0.117)”,说明公司目前在为了这 2.6 亿的利润大量垫钱买原料。一旦下游(如服务器厂商)砍单,这些库存会变成巨大的压力。

总结建议:

目前的 PEG 处于“高位但不算贵”的状态。如果已经持仓,可以以 20 日均线作为防守位死拿;如果准备新买入,建议不要在 93 倍 PE 处追涨。通常这类股在业绩爆发后会有一次“回踩”,等动态 PE 回落到 60-70 倍(对应 PEG 约 0.5-0.6)时,胜率会更高。

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  135. /yingpanguazai/ssd/ssd1/www/no.67808.cn/vendor/topthink/framework/src/think/contract/TemplateHandlerInterface.php ( 1.60 KB )
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  1. CONNECT:[ UseTime:0.000468s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000663s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000294s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002070s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000633s ]
  6. SELECT * FROM `set` [ RunTime:0.004495s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000723s ]
  8. SELECT * FROM `article` WHERE `id` = 488177 LIMIT 1 [ RunTime:0.002422s ]
  9. UPDATE `article` SET `lasttime` = 1778584548 WHERE `id` = 488177 [ RunTime:0.012184s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.003019s ]
  11. SELECT * FROM `article` WHERE `id` < 488177 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000553s ]
  12. SELECT * FROM `article` WHERE `id` > 488177 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000610s ]
  13. SELECT * FROM `article` WHERE `id` < 488177 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001126s ]
  14. SELECT * FROM `article` WHERE `id` < 488177 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.013692s ]
  15. SELECT * FROM `article` WHERE `id` < 488177 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003738s ]
0.116127s