Tuesday, December 10, 2024

买入SPY 2月610 Straddle来保护投资组合

下面一段话来自一位策略师的报告摘录:

The U.S. outlook 2025 reports keep coming out, few of them notable. One of the exceptions is Julian Emanuel from Evercore ISI, “Exuberance is rising – but while 25x SPX TTM [trailing 12 months] P/E is lofty, Valuations are not extreme “enough” with the Fed cutting and the Economy strong, sentiment is not universally optimistic, and aggregate market cap of speculation hotspots is not large enough to mark a significant top. Rather, a ‘Trump Trade’ pause prior to 1/20 causes volatility/mild setback but SPX stays on course for 6,600 at midyear 2025 – 2021 and early 2018 “Exuberance corrections” the blueprint. New: Buy the SPY Feb 610 Straddle [hedge] to complement a portfolio skewed toward Tech and Small Caps. Buy stocks when volatility is high and options when volatility is low”.

这位分析师认为“特朗普交易”在1月20日之后可能暂停,导致市场波动,建议“Buy SPY Feb 610 Straddle”来补充投资组合。下面我们来分析一下这个策略。

这是个多头跨式(Long Straddle)套利策略,即同时买入2025年2月到期、执行价为610的SPY看涨期权和看跌期权。今天(2024年12月10日),看涨期权约12美元,看跌期权约15美元。

如果2月到期时,SPY收于610点,该策略将亏损27美元。盈亏平衡点为583点和637点。若SPY收盘价高于637点或低于583点,则该策略获利。

假设持仓10,000股SPY,买入100个Straddle来对冲,潜在最大损失为2700美元。当SPY上涨超过637点时,Straddle和股票都盈利;当SPY下跌低于583点时,股票亏损,但Straddle盈利,从而起到对冲作用。

10,000股SPY的市场价是六百万出头,花2700元来买Straddle。市场大幅下跌,不亏不赚;小幅波动,小亏;市场大涨,Straddle和股票都大赚。你认为值得买这个“保险”吗?

从另一个方面来看,既然这位分析师认为2025年标普500指数将到达6,600点,1月20日之后只是一短暂调整,那为何买这个“保险”?但是,谁能保证预测都准?

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