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大家晚上好，
我一直在努力完善我的风险管理，特别是在管理包含相当一部分欧洲股票、$DAX 期货和一些债券 ETF 的多资产投资组合时的回撤问题。理论上说，你需要通过再平衡来维持最初的配置，但实际上，如果像 $DAX 期货这样的一个部分大幅下跌，再平衡意味着卖出那些上涨的资产（可能是你的债券）来买入更多下跌的资产。
我担心的是，如果最初的下跌不仅仅是暂时的回调，这可能会加剧损失。我读过关于动态资产配置的文章，即根据市场状况调整目标权重，但这感觉像是迈入了主动择时，而我正试图避免将主动择时应用于投资组合的核心部分。
对于那些管理类似多元化欧洲投资组合的人来说，你们如何在不让配置偏离太远或不因严格按初始权重再平衡而无意中“接住下跌的刀子”的情况下，实际管理回撤？
That's a classic dilemma, isn't it? The theoretical rebalancing sounds great until you're actually in the thick of a drawdown and selling your outperformers feels like you're locking in losses. Have you looked into dynamic rebalancing strategies or maybe setting wider rebalancing bands for your more volatile assets?
That's a classic dilemma. While rebalancing is often touted as the solution, the timing and the 'what' of rebalancing during a significant drawdown in a concentrated position like DAX futures can make or break the strategy. Have you considered exploring dynamic hedging strategies for that specific futures exposure, rather than solely relying on portfolio-wide rebalancing?
I've heard arguments for and against rebalancing into a falling asset during a drawdown. Some suggest it's buying low, others say it's catching a falling knife. What's your personal experience been like with this approach?
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