Lock 10 Years
“Locking 10 years good thinking—should think this way when selecting stocks”
📌 Concept Explanation
Lock 10 years = when buying stock assume cannot sell for next 10 years—if under this premise still willing buy indicates truly understood company.
Buy house for self-occupancy won’t not buy because “housing prices may fall next year” because plan live 10 years. Lock 10 years thinking same—treat stock as long-term holding asset not chip can cash out anytime. Core not “must hold 10 years” but use “10 years” time frame force yourself make qualitative judgment: does company’s long-term logic hold?
💡 Core Understanding
1. Lock 10 years thinking mode when selecting stocks not commitment when holding.
Duan explicitly says “when selecting stocks”—pre-purchase thinking framework not must hold 10 years after buying. Function before purchase forces qualitative judgment filtering opportunities only “look good short-term.”
2. Lock 10 years essence is “qualitative analysis” not time length question.
Duan reduces both lock 10 years and long-termism core to qualitative analysis—“I indeed use much qualitative analysis in investing also difference between me and Wall Street analysts.” Qualitative analysis questions: will company still exist in 10 years? Its business model still valid? Its corporate culture still healthy?
3. Lock 10 years thinking naturally filters speculative buying.
Logic: if unwilling hold 10 years means buying reasons short-term (price fluctuations news stimulation market emotion) not based on company intrinsic value. Such buying essentially speculation not value investing.
4. Lock 10 years doesn’t equal “buy never sell”—discover bought wrong correct immediately.
Duan says: “Myself haven’t had lock 10 years experience yet毕竟started investing just reached 10th year. Actually when buy stocks I truly never thought about how many years hold.” Lock 10 years stock selection thinking tool not holding iron rule. If discover bought wrong (company fundamentals changed) mistakes and correction principle priority—sell immediately.
🛠 How to Practice
Before buying test judgment using “lock 10 years”:
- Assume cannot sell for 10 years after purchase—still willing buy? If answer “unwilling” indicates buying reasons short-term not true value investing.
- Can clearly explain why company still excellent after 10 years? Not predict specific numbers but describe company’s long-term logic—its moat, business model, corporate culture have persistence?
- If stock price drops 50% tomorrow would judgment change? If would change indicates “10-year judgment” actually built on stock price not company itself.
During holding check only one thing:
Judgment originally making you willing “lock 10 years” still valid today? If valid how to view market fluctuations irrelevant. If no longer (not because stock price dropped but company fundamentals changed) re-evaluate.
📖 Case Analysis
Apple (2011): Heavy position decision under lock 10 years thinking
2011 Duan heavily bought Apple position eventually reaching 60-70%. His judgment entirely qualitative: “Based my understanding Apple earnings probably reach $40-50/share within 2-3 years…Apple无论如何should be 600B+ company.” He didn’t predict which year Apple stock reach what price but judged Apple’s long-term competitive position holds. Exactly reflects lock 10 years thinking—clarify long-term logic before buying not predicting short-term prices.
Source: Investment Logic, 2011-04-29
⚠️ Common Misconceptions
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❌ “Lock 10 years means buy never sell” — Duan says “actually when buy stocks I truly never thought about how many years hold.” Lock 10 years selection thinking framework not holding commitment. Discover bought wrong sell immediately.
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❌ “Planning hold 10 years equals value investing” — Lock 10 years premise “truly understood company.” Haven’t understood planning hold 10 years not value investing blind holding. “Outside circle of competence even bought can’t hold let alone long-term.”
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❌ “Lock 10 years time strategy” — “Actually looking few years not time length question but qualitative question.” Lock 10 years core qualitative analysis not time length. Company understand 3 years actually have idea 10 too; company don’t understand 3 years no bottom either.
💬 Original Quotes
**Lock 10 years good thinking should think this way selecting stocks.” (Source: Investment Logic, 2011-04-29)
**Actually looking few years not time length question but qualitative question.” (Source: Investment Logic, 2013-10-09)
**Why plan hold 10-day stocks when don’t plan hold 10-year? If plan hold 30 years feel 1%+ annual fee rate somewhat crazy.” (Source: Investment Logic, 2015-09-10)
**I indeed use much qualitative analysis in investing also difference between me and Wall Street analysts otherwise how I get opportunity.” (Source: Investment Logic, 2010-03-30)
**For investing good companies most important. (When sell less important).” (Source: Investment Logic, 2015-11-01)
🔗 Related Nodes
Upstream concepts (prerequisites for understanding this concept): Long-termism · Circle of Competence · Intrinsic Value · Business Model
Downstream concepts (conclusions derived from this): Concentrated Investing · Ordinary Mind · Mistakes and Correction
Related Company Cases Apple (2011 heavy position) · NetEase (held 8-9 years)
Related People Duan Yongping · Buffett
封仓十年
封仓10年是个很好的思路，选股时就该这么想
📌 概念解析
封仓十年 = 买入一只股票时，就假设接下来十年无法卖出——如果在这个前提下你还愿意买，说明你真正看懂了这家公司。
你要买一套房子自住，你不会因为”明年房价可能跌”就不买，因为你打算住十年。封仓十年的思路就是这样——把股票当成你要长期持有的资产，而不是随时可以出手的筹码。这个思路的核心不是”要拿十年”，而是用”十年”这个时间框架来逼迫自己做定性判断：这家公司的长期逻辑是否成立？
💡 核心理解
1. 封仓十年是一种选股时的思维方式，而不是持有时的承诺。
段永平明确说的是”选股时”——这是一种买入前的思考框架，而不是买了之后就一定要拿十年。它的作用是在买入前逼迫自己做定性判断，过滤掉那些只是”短期看起来不错”的机会。
2. 封仓十年的本质是”定性分析”，而不是时间长短的问题。
段永平把封仓十年和长期主义的核心都归结为定性分析——“我在投资里用定性分析确实比较多，这也是我和华尔街分析家们的区别。“定性分析的问题是：这家公司十年后还在吗？它的生意模式还成立吗？它的企业文化还健康吗？
3. 封仓十年的思路天然过滤掉了投机性买入。
这句话的逻辑是：如果你不愿意持有十年，说明你的买入理由是短期的（股价波动、消息刺激、市场情绪），而不是基于公司的内在价值。这类买入本质上是投机，而不是价值投资。
4. 封仓十年不等于”买了不卖”，发现买错了要立刻纠正。
段永平自己说：“我自己还没有过封仓10年的体验，毕竟开始投资才刚刚到第10个年头。实际上我买股票时还真没有想过要拿多少年。“封仓十年是选股时的思维工具，不是持有时的铁律。如果发现买错了（公司基本面变了），错误与纠错的原则优先——立刻卖出。
🛠 如何实践
买入前，用”封仓十年”测试自己的判断：
- 假设你买入后十年无法卖出，你还愿意买吗？ 如果答案是”不愿意”，说明你的买入理由是短期的，不是真正的价值投资。
- 你能说清楚十年后这家公司为什么还会很好吗？ 不是要你预测具体数字，而是要你能描述这家公司的长期逻辑——它的护城河、生意模式、企业文化是否具有持久性。
- 如果股价明天跌50%，你的判断会变吗？ 如果会变，说明你的”十年判断”其实是建立在股价上的，而不是建立在公司本身上的。
持有过程中，只检查一件事：
当初让你愿意”封仓十年”的那个判断，今天还成立吗？如果成立，如何看待市场波动与你无关。如果不成立了（不是因为股价跌，而是公司基本面变了），重新评估。
📖 案例拆解
苹果（2011年）：封仓十年思路下的重仓决策
2011年，段永平重仓买入苹果，仓位最终达到 60-70%。他的判断逻辑完全是定性的：“以我的理解，苹果的盈利在两到三年内大概就可以达到每股40-50块/年……苹果怎么看都应该是6000亿以上的公司。“他没有预测苹果股价会在哪一年到多少，而是判断苹果的长期竞争地位是否成立。这正是封仓十年思路的体现——买入前想清楚长期逻辑，而不是预测短期股价。
来源：投资逻辑篇，2011-04-29
⚠️ 常见误区
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❌ “封仓十年就是买了不卖” — 段永平自己说”实际上我买股票时还真没有想过要拿多少年”。封仓十年是选股时的思维框架，不是持有时的承诺。发现买错了，要立刻卖出。
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❌ “只要打算拿十年，就是价值投资” — 封仓十年的前提是”真正看懂了这家公司”。没看懂就打算拿十年，不是价值投资，是盲目持有。“不在能力圈内的，即使买了也拿不住，更谈不上长期。”
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❌ “封仓十年是一种时间策略” — “其实看几年并不是个时间长短的问题，而是个定性的问题。“封仓十年的核心是定性分析，不是时间长短。能看懂3年的公司，其实10年也有谱；看不懂的，3年也没底。
💬 原文金句
“封仓10年是个很好的思路，选股时就该这么想。“（来源：投资逻辑篇，2011-04-29）
“其实看几年并不是个时间长短的问题，而是个定性的问题。“（来源：投资逻辑篇，2013-10-09）
“不打算拿10年的股票为什么会打算拿10天呢？如果你打算拿30年的话，你就会觉得1%以上的年费率有点疯狂了。“（来源：投资逻辑篇，2015-09-10）
“我在投资里用定性分析确实比较多，这也是我和华尔街分析家们的区别，不然我怎么有机会啊。“（来源：投资逻辑篇，2010-03-30）
“就投资而言，好公司最重要。（何时卖不那么重要）。“（来源：投资逻辑篇，2015-11-01）
🔗 关联节点
上游概念（理解这个概念的前提）： 长期主义 · 能力圈 · 内在价值 · 生意模式
下游概念（由此推导出的结论）： 集中投资 · 平常心 · 错误与纠错