{"id":63104,"date":"2025-09-23T13:15:56","date_gmt":"2025-09-23T11:15:56","guid":{"rendered":"https:\/\/www.captrader.com\/?post_type=glossar&#038;p=63104"},"modified":"2025-09-23T13:15:58","modified_gmt":"2025-09-23T11:15:58","slug":"sharpe-ratio","status":"publish","type":"glossar","link":"https:\/\/www.captrader.com\/en\/glossar\/sharpe-ratio\/","title":{"rendered":"Sharpe Ratio"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Whether shares or funds, anyone comparing different investments will sooner or later come across the Sharpe ratio. This ratio indicates how much return was achieved in relation to the risk taken, making investments easier to compare. It is a particularly useful tool for investors who are not only looking for the highest returns, but also for a balanced risk\/return ratio. In this article, we show how it is calculated, what it tells us and where its limits lie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is the Sharpe Ratio?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Sharpe ratio is a key figure that helps to <strong>Risk\/return ratio<\/strong> better assess the return on an investment. It shows how much excess return was achieved in comparison to the respective risk, i.e. how efficient an investment was in comparison to a risk-free alternative.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yield alone says little if the extent to which the price has fluctuated in the meantime is not taken into account. The key figure therefore compares the additional return on an investment compared to an investment without risk (e.g. government bonds) with the volatility, i.e. the risk of fluctuation of an asset. <strong>The higher the value, the better the reward for the risk.<\/strong> A low or negative Sharpe ratio, on the other hand, can be a warning signal, for example because the investment hardly performs better than a call money account, but shows strong price fluctuations.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This makes different investments more objectively comparable, regardless of their volatility or asset class. Private investors are provided with meaningful guidance, especially when comparing similar investment products, and are <a href=\"https:\/\/www.captrader.com\/en\/glossary\/risk-management\/\" data-type=\"glossar\" data-id=\"56301\">Risk Management<\/a> of their investment strategy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Calculate Sharpe Ratio<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The ratio compares the excess return of an investment with its risk. The basic formula is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sharpe ratio = (investment return - risk-free interest rate)Volatility<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This means for the respective values used:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Investment return: The average annual return of the investment under consideration, for example a fund or ETF.<\/li>\n\n\n\n<li>Risk-free interest rate: The yield on safe government bonds (e.g. German Bunds or US Treasuries) is often used as a benchmark.<\/li>\n\n\n\n<li>Volatility: The standard deviation of the return, i.e. a measure of how strongly the price typically fluctuates.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An ETF achieves an average return of 7 percent over one year, while the risk-free interest rate is 2 percent. The volatility is 10 percent. This results in:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sharpe Ratio = (7% - 2%)10% = 0.5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This means that an excess return of 0.5 was achieved per unit of risk (here: 10 percent fluctuation). Depending on the market environment, this can be a solid value. In a historical comparison, values above 1.0 are considered good and above 2.0 very good.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example 2:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <a href=\"https:\/\/www.captrader.com\/en\/glossary\/hedge-funds\/\" data-type=\"glossar\" data-id=\"51862\">Hedge funds<\/a> yields 15 percent, but also 20 percent volatility with the same risk-free interest rate of 2 percent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sharpe Ratio = (15% - 2%)20% = 0.65<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although the hedge fund has significantly higher <a href=\"https:\/\/www.captrader.com\/en\/glossary\/interest\/\" data-type=\"glossar\" data-id=\"59743\">Interest<\/a> the Sharpe ratio is only slightly better, as the risk is also significantly higher. This shows that a higher return does not automatically mean a better risk\/return ratio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Important: The calculation always relates to a specific period and is not automatically transferable to the future. It should therefore be considered in the context of other fundamental values and not in isolation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sharpe Ratio Interpretation:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the <a href=\"https:\/\/www.captrader.com\/en\/glossary\/fundamental-analysis\/\" data-type=\"glossar\" data-id=\"51864\">Fundamental analysis<\/a> The Sharpe Ratio is often used to establish a meaningful relationship between risk and return. Unlike pure performance figures, the Sharpe ratio provides a <strong>Risk-adjusted valuation<\/strong>, which is particularly helpful if you want to compare different investment options objectively. For example, it can help to assess two funds with different strategies or a broadly diversified portfolio compared to a single investment, <strong>which option promises the better return<\/strong>, regardless of the absolute performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But as with every key figure, <strong>the significance depends on the context.<\/strong> If you classify them correctly, you can gain valuable information for your portfolio composition, but you should not rely on them alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What the Sharpe Ratio is good at:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Comparison of different investment products:<\/strong> Two funds with similar returns can be better assessed on the basis of their fluctuations.<\/li>\n\n\n\n<li><strong>Measure risk-appropriate performance:<\/strong> For long-term strategies in particular, it is helpful to know whether an investment offers not only returns but also stability.<\/li>\n\n\n\n<li><strong>Portfolio management:<\/strong> Asset managers use the Sharpe Ratio to better assess the risk\/reward ratio of individual components.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Where it reaches its limits:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The past is not the same as the future:<\/strong> The calculation is based on historical data. This does not automatically allow conclusions to be drawn about the future, especially in volatile markets or when changing strategy.<\/li>\n\n\n\n<li><strong>Non-linear risks are ignored:<\/strong> The Sharpe ratio only takes into account the standard deviation as a measure of risk. Extreme losses, such as those that can occur with derivatives or hedge funds, are not always realistically depicted, meaning that risks can be underestimated.<\/li>\n\n\n\n<li><strong>No focus on liquidity or strategy<\/strong>The key figure says nothing about how liquid a product is or what investment strategy is being pursued. Qualitative factors such as sustainability or management quality are also not included.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The Sharpe ratio is therefore an important analysis tool, but not a complete picture. It helps with the assessment, but is no substitute for looking at the details, such as strategy, liquidity or market environment. It is best suited to <strong>Comparison within the same asset class<\/strong> and under similar market conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tips for investors<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the Sharpe ratio is classified correctly, it can be a valuable guide to the investment strategy. Investors particularly like to use it when there are several investment options to choose from and it is about more than just pure performance<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following information will help you to interpret the data correctly and avoid typical errors:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. only compare what is comparable<\/strong><strong><br><\/strong>Sharpe ratios only make sense if they are used for investments in the same asset class and with a comparable time horizon. For example, an equity fund with global diversification cannot be meaningfully compared with a highly specialized sector ETF.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. pay attention to the observation period<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many providers quote Sharpe ratios for 1, 3 or 5 years. The longer the period, the more robust the statement usually is. Short periods can be distorted, for example by individual sharp swings or special effects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. use additional key figures<\/strong><strong><br><\/strong>The Sharpe ratio measures the ratio of risk to return, but not the quality of the return. Fundamental data, investment horizon, liquidity requirements and personal risk tolerance should always be taken into account. CapTrader offers in the <strong>StrategyLab<\/strong> the comparison of various key figures in order to obtain a more complete picture of the long-term efficiency and stability of a system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. do not trust blindly<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Even a high value is no guarantee of future performance. It may have been manipulated or artificially improved by deliberately smoothing out fluctuations, especially in the case of non-transparent products such as some hedge funds or structured certificates.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Sharpe ratio is one of the best-known key figures in the <a href=\"https:\/\/www.captrader.com\/en\/glossary\/technical-analysis\/\" data-type=\"glossar\" data-id=\"45342\">technical analysis<\/a> for assessing risk and return. It makes different forms of investment comparable and helps investors to pay attention not only to high returns, but also to a balanced relationship with the fluctuation margin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you classify the ratio correctly, you can avoid making the wrong decisions and strategically improve your portfolio. As with any indicator, the Sharpe ratio is one tool among many. It unfolds its full potential when it is understood in the right context and not viewed in isolation.<\/p>","protected":false},"author":20,"featured_media":0,"template":"","class_list":["post-63104","glossar","type-glossar","status-publish","hentry"],"acf":{"blog_summary":"","blog_faq_schalter":"nein","faq_uberschrift":"","blog_faq_loop":null},"_links":{"self":[{"href":"https:\/\/www.captrader.com\/en\/wp-json\/wp\/v2\/glossar\/63104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.captrader.com\/en\/wp-json\/wp\/v2\/glossar"}],"about":[{"href":"https:\/\/www.captrader.com\/en\/wp-json\/wp\/v2\/types\/glossar"}],"author":[{"embeddable":true,"href":"https:\/\/www.captrader.com\/en\/wp-json\/wp\/v2\/users\/20"}],"wp:attachment":[{"href":"https:\/\/www.captrader.com\/en\/wp-json\/wp\/v2\/media?parent=63104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}