已经持有股票，觉得短期上涨太多、想锁定收益、又舍不得卖 -> Sell Covered Call 就是最合适的策略
原理：把未来的上涨权利出租给别人，自己收权利金
到期后：
HOOD 当前股价：$148.67（接近历史高点）
操作：卖出 $170 行权价，11/7 到期的 Call
权利金：$5.65 -> 收入 $565
结果：
Covered Call 实际是轻微看跌或看平操作
最佳入场时机：股价高位或冲顶后
例：HOOD 连涨后接近高点，卖 170 Call 权利金高、风险低
反例：SOFI 在低位 $25，若卖 Call 一旦反弹就卖飞
总结：Sell Covered Call 要在高点玩，不要在低点慌
CSP 全称：Cash Secured Put（现金担保卖权）
承诺在某个价格买股票，如果没跌到就收权利金
两种结局：
当前股价：$429
卖出 $400 执行价 Put 期权，到期日 10/31（28 天后）
可收权利金约 $1,530
要么低价买入 TSLA，要么白拿权利金
Max Return：$1,530（最大收益）
Max Loss：$38,470（理论最大亏损）
Break Even：$384.7（盈亏平衡点）
Delta：0.3（约 30% 行权概率）
Thelta：0.44（时间衰减利好卖方）
Probability of Profit：69.5%（获利概率）
LEAPS = Long-term Equity Anticipation Securities，长期股票期权
到期时间长：>= 1 年，常见 2-3 年
我的最爱：回报高、风险可控、出场灵活
比 Covered Call 更赚钱，也更安心
LEAPS = 期权中的玄铁重剑
录制当天股价 = $170.29
买 100 股 = $170.29 x 100 = $17,029
买 LEAPS = $47.82 x 100 = $4,782
节省资金 = $12,247
Delta ~= 0.75 -> 股价涨 $1，期权涨 $0.75 ~= 持有 75 股
期权总价 = $4,782
内在价值 = ($170.29 - $145) x 100 = $2,529
外在价值 = $4,782 - $2,529 = $2,253
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