https://www.econstor.eu/handle/10419/275182
EconStor: Portfolio volatility estimation relative to stock market cross-sectional intrinsic entropy
EconStor is a publication server for scholarly economic literature, provided as a non-commercial public service by the ZBW.
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https://www.kiplinger.com/article/investing/t038-c008-s001-get-your-portfolio-ready-for-volatility.html
Get Your Portfolio Ready for Volatility - And for When It Ends | Kiplinger
Feb 14, 2018 - It is never too late to protect against big market swings.
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https://www.invesco.com/us/en/financial-products/collegebound-529/invesco-sp-500-low-volatility-portfolio-class-i.html
Invesco S&P 500 Low Volatility Portfolio Class I | Invesco US
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https://www.invesco.com/us/en/financial-products/collegebound-529/invesco-sp-500-low-volatility-portfolio-class-c.html
Invesco S&P 500 Low Volatility Portfolio Class C | Invesco US
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