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Cash-secured puts, explained现金担保看跌期权，通俗解释
A plain-language guide to the terms and the trade-offs — and how a rules-based screener ranks the setups. Descriptive, not investment advice. 用通俗语言解释相关术语与取舍，以及基于规则的筛选工具如何对这些合约排名。仅为描述性内容，不构成投资建议。
What is a cash-secured put?什么是现金担保看跌期权？
Selling a cash-secured put means selling a put option while setting aside enough cash to buy the shares at the strike price if you are assigned. You collect the option premium up front; in exchange, you agree to buy the stock at the strike through expiration. Sellers use it to earn premium on names they would be willing to own at a lower price — the same first leg as “the wheel.” 卖出现金担保看跌期权是指在卖出看跌期权的同时，预留足够的现金，以便在被行权时按行权价买入股票。你先收取期权权利金；作为交换，你同意在到期前按行权价买入该股票。卖方以此在他们愿意以更低价格持有的标的上赚取权利金——这也是“轮动策略（the wheel）”的第一步。
The key terms关键术语
- Downside buffer下跌缓冲
- How far the stock can fall before it reaches your breakeven (strike minus premium). A bigger buffer means more room to be wrong.股票在触及你的保本点（行权价减权利金）之前还能下跌多少。缓冲越大，容错空间越大。
- Annualized yield年化收益率
- The premium expressed as a per-year rate on the capital secured. It is arithmetic on the current premium — a comparison figure, not an expected or guaranteed return.将权利金按占用资金折算成年化利率。它只是对当前权利金的算术换算——用于比较，并非预期或保证收益。
- Probability of profit (PoP)盈利概率（PoP）
- A model-estimated probability the option expires worthless, derived from its delta. It is a model estimate, not a historical win rate.基于 Delta 的模型估算——期权到期作废的概率。这是模型估算值，不是历史胜率。
- Volatility risk premium (VRP)波动率风险溢价（VRP）
- The gap between a stock's implied volatility and its realized volatility — the structural edge option sellers are compensated for.股票隐含波动率与已实现波动率之间的差值——期权卖方因承担风险而获得补偿的结构性来源。
- Earnings gate财报门控
- Earnings that fall before an option expires add event risk. A screen can penalize or exclude setups whose earnings cross the option's life.在期权到期前公布的财报会带来事件风险。筛选可以对财报落在期权存续期内的合约扣分或排除。
- Covered call (for contrast)备兑看涨期权（对比）
- Selling a call against shares you already own. A cash-secured put is secured by cash and is the entry side; a covered call is secured by shares and is the exit side.针对你已持有的股票卖出看涨期权。现金担保看跌期权由现金担保、属于建仓一侧；备兑看涨期权由股票担保、属于离场一侧。
How a screener ranks them筛选工具如何排名
A screener like PutFinder scans the full option chain across a curated universe and scores each setup on a premium-vs-risk basis — combining the annualized yield and downside buffer with the stock's quality, its volatility risk premium, and the earnings gate — into a single relative score. The score is a descriptive ranking heuristic: it says a setup sits high in tonight's pool, not that it is a good trade or a predicted return. 像 PutFinder 这样的筛选工具会扫描精选股票池中完整的期权链，并以权利金对风险为基础为每个合约评分——将年化收益率和下跌缓冲，与标的质量、波动率风险溢价以及财报门控结合成一个相对分数。该分数是描述性的排名启发式：它表示某合约在当晚池中排名靠前，而不代表它是一笔好交易或对收益的预测。
How it compares与其他方式的对比
A descriptive comparison of ways to find cash-secured-put setups — not a claim that one is “better,” just how they differ. 对寻找现金担保看跌期权合约的几种方式的描述性对比——并非主张某一种“更好”，只是说明它们的区别。
| PutFinder | Manual chain-scanning手动翻期权链 | Signals service / Discord交易信号服务 / Discord | |
|---|---|---|---|
| What you get你得到什么 | A ranked, documented shortlist带说明的排序候选清单 | Raw data you sort yourself需自己筛选的原始数据 | Specific calls to act on具体的操作提示 |
| Transparency透明度 | Every factor documented每个因子都有说明 | Your own method取决于你自己的方法 | Usually opaque通常不透明 |
| Coverage覆盖范围 | Full chain, curated universe, nightly完整期权链、精选股票池、每日更新 | Whatever you have time to scan取决于你能扫描多少 | A handful of tickers少数几个标的 |
| Framing定位 | Descriptive — you decide描述性——由你决定 | —— | Prescriptive — told what to do指令性——直接告诉你怎么做 |
| Not investment advice是否为投资建议 | ✓ research tool✓ 研究工具 | ✓ your own research✓ 你自己的研究 | Varies — often implies action不一定——常暗示操作 |
Common questions常见问题
Is a cash-secured put “safe”?现金担保看跌期权“安全”吗？
It is fully cash-secured, so there is no leverage or margin call — but the underlying stock can still fall well below your breakeven, and you can be assigned shares at a loss. It is a defined-capital strategy, not a risk-free one.它由现金全额担保，因此没有杠杆或追加保证金——但标的股票仍可能跌破你的保本点，你也可能在亏损时被行权买入股票。这是一种资金明确的策略，而非无风险策略。
Cash-secured put vs. covered call — which is better?现金担保看跌 vs. 备兑看涨——哪个更好？
Neither is universally better; they sit on opposite sides of a position and are often combined in the wheel. This is descriptive, not a recommendation.两者没有普遍意义上的优劣；它们位于持仓的两侧，常在轮动策略中组合使用。此处仅为描述，不构成建议。
Does PutFinder tell me what to sell?PutFinder 会告诉我该卖什么吗？
No. PutFinder ranks and documents setups on a premium-vs-risk basis; the decision stays with you. It is a research screener, not a signals service and not investment advice.不会。PutFinder 以权利金对风险为基础对合约进行排名并记录；决策权始终在你手中。它是研究型筛选工具，不是交易信号服务，也不构成投资建议。
Last updated . PutFinder is an internal research engine, not investment advice. Rankings are a relative heuristic; yields are arithmetic on current premium and PoP is a model estimate, not a historical win rate. Consult a qualified financial professional before making any investment decisions. 最后更新 。PutFinder 是内部研究引擎，不构成投资建议。排名为相对启发式；收益率为当前权利金的算术计算，PoP 为模型估算而非历史胜率。在做出任何投资决策前，请咨询合格的金融专业人士。