{"id":198860,"date":"2023-11-10T09:56:52","date_gmt":"2023-11-10T14:56:52","guid":{"rendered":"https:\/\/ibkrcampus.com\/?p=198860"},"modified":"2024-05-15T10:29:02","modified_gmt":"2024-05-15T14:29:02","slug":"estimating-stocks-bonds-correlation-from-long-term-data","status":"publish","type":"post","link":"https:\/\/www.interactivebrokers.com\/campus\/ibkr-quant-news\/estimating-stocks-bonds-correlation-from-long-term-data\/","title":{"rendered":"Estimating Stocks-Bonds Correlation from Long-Term Data"},"content":{"rendered":"\n<p><em>The article &#8220;<a href=\"https:\/\/quantpedia.com\/estimating-stocks-bonds-correlation-from-long-term-data\/\">Estimating Stocks-Bonds Correlation from Long-Term Data<\/a>&#8221; first appeared on Quantpedia.<\/em><\/p>\n\n\n\n<p><em>Excerpt<\/em><\/p>\n\n\n\n<p>There are a few concepts in the world of finance that are taken for granted, and one of them is the free lunch of diversification. Investors like to mix stocks and bonds into a simple allocation portfolio and hope for better outcomes than investing in just one asset. But the favorable return-to-risk profile of those asset allocation strategies relies on the low correlation between those two asset classes, which, as we will see from today\u2019s contribution, we can\u2019t take for granted. We hope the recent study sheds more light on this topic.<\/p>\n\n\n\n<p><a href=\"https:\/\/papers.ssrn.com\/sol3\/papers.cfm?abstract_id=4514947\" target=\"_blank\" rel=\"noreferrer noopener\">Molenaar, Senechal, Swinkels, and Wang (Jul 2023)<\/a>&nbsp;examine the empirical relationship between stock and bond returns, using deep historical data&nbsp;from 1875&nbsp;with various monetary regimes for various countries.&nbsp;Over the whole sample, the&nbsp;positive stock-bond correlation has been more common than a negative one, even though the latter has been observed mainly in the past two decades.<\/p>\n\n\n\n<p>From the 60s,&nbsp;with independent central banks, a positive stock-bond correlation is observed during periods with&nbsp;(normally)&nbsp;high inflation and high actual returns on Treasury bills. Bond risk premiums derived from the term structure of interest rates are positively related to those based on the CAPM&nbsp;(Capital Asset Pricing Model)&nbsp;and, therefore, derived from the stock-bond correlation. This may indicate that the CAPM has a more robust empirical basis than within asset classes.<\/p>\n\n\n\n<p>From the rich selection of clear pictures, we would like to point out&nbsp;Figure 1, which \u2013 keeping equity and bond mean returns and volatilities constant at the total sample values \u2013 shows that the correlation&nbsp;until the millennium&nbsp;leads to a volatility of 10.4% per annum for the 60\/40 portfolio, whereas this reduces to 8.5% with the correlation realized in the post-1999 period.<\/p>\n\n\n\n<p>These findings have important implications for multi-asset investors. Historical regimes with positive stock-bond correlation are associated with higher volatility risk of a 60\/40 portfolio and lower Sharpe ratios. Changes in inflation and the actual return on Treasury bills could, through their effect on the stock-bond correlation, materially impact the risk of multi-asset portfolios and the risk premiums that investors can earn during those periods.<\/p>\n\n\n\n<p><strong>Authors:&nbsp;<\/strong><a href=\"https:\/\/papers.ssrn.com\/sol3\/cf_dev\/AbsByAuth.cfm?per_id=606490\" target=\"_blank\" rel=\"noreferrer noopener\">Roderick Molenaar<\/a>,&nbsp;<a href=\"https:\/\/papers.ssrn.com\/sol3\/cf_dev\/AbsByAuth.cfm?per_id=4371781\" target=\"_blank\" rel=\"noreferrer noopener\">Edouard Senechal<\/a>,&nbsp;<a href=\"https:\/\/papers.ssrn.com\/sol3\/cf_dev\/AbsByAuth.cfm?per_id=295938\" target=\"_blank\" rel=\"noreferrer noopener\">Laurens Swinkels<\/a>,&nbsp;<a href=\"https:\/\/papers.ssrn.com\/sol3\/cf_dev\/AbsByAuth.cfm?per_id=1570605\" target=\"_blank\" rel=\"noreferrer noopener\">Zhenping Wang<\/a><\/p>\n\n\n\n<p><strong>Title:<\/strong>&nbsp;Empirical evidence on the stock-bond correlation<\/p>\n\n\n\n<p><strong>Link<\/strong>:&nbsp;<a href=\"https:\/\/papers.ssrn.com\/sol3\/papers.cfm?abstract_id=4514947\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/papers.ssrn.com\/sol3\/papers.cfm?abstract_id=4514947<\/a><\/p>\n\n\n\n<p><strong>Abstract:<\/strong><\/p>\n\n\n\n<p>The correlation between stock and bond returns is a cornerstone of asset allocation decisions. The correlation can move considerably over time, which can have a large impact on portfolio construction. Our empirical evidence points to inflation and real returns on short-term bonds, and the uncertainty surrounding inflation as important factors for understanding the sign and magnitude of the stock-bond correlation. Our historical analyses across countries suggest that our findings are robust. We apply these insights to analyze the implications of a shift in stock-bond correlation regime for the risk of multi-asset class portfolios and for bonds risk premia.<\/p>\n\n\n\n<p>As always we present several interesting figures and tables:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"986\" data-src=\"\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-1.jpg\" alt=\"\" class=\"wp-image-198862 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-1.jpg 1024w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-1-700x674.jpg 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-1-300x289.jpg 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-1-768x740.jpg 768w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; aspect-ratio: 1024\/986;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"881\" data-src=\"\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-2.jpg\" alt=\"\" class=\"wp-image-198863 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-2.jpg 1024w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-2-700x602.jpg 700w, 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https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-3-700x717.jpg 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-3-300x307.jpg 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-3-768x786.jpg 768w\" data-sizes=\"(max-width: 1000px) 100vw, 1000px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1000px; aspect-ratio: 1000\/1024;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"981\" height=\"1024\" data-src=\"\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-4.jpg\" alt=\"\" class=\"wp-image-198865 lazyload\" style=\"--smush-placeholder-width: 981px; aspect-ratio: 981\/1024;aspect-ratio:0.9580078125;width:840px;height:auto\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-4.jpg 981w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-4-700x731.jpg 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-4-300x313.jpg 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2023\/11\/quantpedia-stock-bond-correlation-4-768x802.jpg 768w\" data-sizes=\"(max-width: 981px) 100vw, 981px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n\n\n\n<p><em>Visit <a href=\"https:\/\/quantpedia.com\/estimating-stocks-bonds-correlation-from-long-term-data\/\">Quantpedia<\/a> to read notable quotations from the academic research paper.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>From the 60s,\u00a0with independent central banks, a positive stock-bond correlation is observed during periods with\u00a0(normally)\u00a0high inflation and high actual returns on Treasury bills. <\/p>\n","protected":false},"author":186,"featured_media":112415,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[339,338,341],"tags":[16228],"contributors-categories":[13662],"class_list":{"0":"post-198860","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-data-science","8":"category-ibkr-quant-news","9":"category-quant-development","10":"tag-stocks-bonds-correlation","11":"contributors-categories-quantpedia"},"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Estimating Stocks-Bonds Correlation from Long-Term Data<\/title>\n<meta name=\"description\" content=\"From the 60s,\u00a0with independent central banks, a positive stock-bond correlation is observed during periods with\u00a0(normally)\u00a0high inflation and high...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.interactivebrokers.com\/campus\/wp-json\/wp\/v2\/posts\/198860\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Estimating Stocks-Bonds Correlation from Long-Term Data | IBKR Campus US\" \/>\n<meta property=\"og:description\" content=\"From the 60s,\u00a0with independent central banks, a positive stock-bond correlation is observed 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