{"id":20591,"date":"2011-10-07T01:23:00","date_gmt":"2011-10-06T23:23:00","guid":{"rendered":"http:\/\/beta.next-finance.net\/strategie\/management-of-hedge-fund-portfolios-during-crisis-periods-the-contribution-of-systematic-overlays\/"},"modified":"2019-12-30T22:18:29","modified_gmt":"2019-12-30T21:18:29","slug":"management-of-hedge-fund-portfolios-during-crisis-periods-the-contribution-of-systematic-overlays","status":"publish","type":"post","link":"http:\/\/beta.next-finance.net\/en\/strategie\/management-of-hedge-fund-portfolios-during-crisis-periods-the-contribution-of-systematic-overlays\/","title":{"rendered":"Management of hedge fund portfolios during crisis periods: the contribution of systematic overlays"},"content":{"rendered":"\n<strong>Why overlays?<\/strong>\n\n\nDuring transition periods from growth to risky environment it\nis not straightforward to manage the risks carried by alternative allocations. This is especially the case for hedge fund allocations, which\nexhibit low level of liquidity (quarterly or monthly at best) and which exhibit significant inertia. In the case of UCITS or managed account allocations which are more liquid, market risk management can be\ntricky in the short term. Beyond the liquidity issue, large scale rebalancing can cause operational issues: significant concentration of the allocation in certain investment styles, frequent in and outs can be\nproblematic with certain managers, exiting from closed funds&#8230;\n\n\nThe implementation of overlays can be a good alternative to large scale rebalancing. This type of hedging technique lies on the identification of the systematic risks embedded by the underlying funds, and by the implementation of effective hedges with liquid instruments (future contracts). The first advantage of this approach is that it allows the investor to keep its allocation unchanged. The hedge can\nthen be triggered, waiting the confirmation of a trend which would validate the reallocation of the portfolio. The second advantage is that this approach does not require high amounts of cash (deposit x\nbeta). Finally, the overlay can be priced in real time and be liquidated at anytime.\n\n\n<strong>Discretionary vs. systematic overlays<\/strong>\n\n\nIn addition to the problems inherent to the identification of the risk exposures and the choice of hedging instruments, the timing of the trigger of the overlay is a central issue. Two options are available to\ninvestors and multimanagers. The first is based on the discretionary trigger of the overlay, depending on the investor views. From our point of view, this solution is not efficient, because medium term views\nare already reflected in the tactical allocation. The second approach is based on the use of a systematic signal to trigger the overlay. The major advantages of the latter are the objectivity of this approach and\nthe ability to set up contrarian views.\n\n\n<strong>Implementation<\/strong>\n\n\nThe overlay process requires the use of specific quantitative tools:\n\n\n\n<ul><li> a risk signal, which takes into account standard risk metrics (volatilities, credit spreads), but also second order risk metrics (dispersion, crossasset correlation&#8230;) ;<\/li><\/ul>\n\n\n\n<ul><li>  a multifactor style analysis model, designed to identify the pertinent risk factors for each underlying fund, to take into account changes in risk exposures (tactical allocation, style drift&#8230;) and which allows the nonlinearity of the underlying risk structure.. <\/li><\/ul>\n\n\nSee <em>\u00ab A Dynamic Style Analysis Model for Hedge Funds \u00bb, Research paper, Orion Financial Partners, 2011<\/em> and <em>\u00ab A Non-Parametric Test of Market Timing for Hedge Funds: Beyond Alpha and Beta \u00bb<\/em>, <em>Research paper, Orion Financial Partners, 2011<\/em>.\n\n\n\n<ul><li> a transition matrix which links the identified risk factors with hedging instruments.<\/li><\/ul>\n\n\n<strong>Implementing an overlay<\/strong>\n\n\n<img loading=\"lazy\" class=\" aligncenter size-full wp-image-20589\" src=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay.png\" alt=\"overlay.png\" align=\"center\" width=\"530\" height=\"491\" srcset=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay.png 530w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-300x278.png 300w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/>\n\n\n<strong>Limits and risks<\/strong>\n\n\n&#8211; In the case of poor market timing, the (non) trigger of the risk signal can be a source of loss. Note however that in the case in which the overlay is not triggered when needed, the performance of the portfolio will not be affected. At the opposite, i.e. if the overlay is triggered\nin the wrong timing, the performance of the portfolio will be cut from a part of its systematic component. In that case, alpha will not be affected.\n&#8211; The quantitative analysis of the risk factors may imply a missspecification of the risks to hedge.\n&#8211; Certain risks can only be partially hedged (high yield debt, emerging equities, commodities&#8230;).\n&#8211; The changes in risk exposures imply that the computed hedge ratios can diverge significantly from optimal hedge ratios.\n&#8211; Specific risks (i.e. independent from market risks) cannot be identified, nor hedged. As a consequence, overlays are not efficient when applied to strategies which exhibit no or limited exposures to systematic risks (especially relative value strategies).\n\n\n<citation|texte=By applying our model of systematic overlay on the\nGlobal HFRI index over the period January 2008 - August 2011, we show that the annualized performance of the benchmark portfolio is improved by 4.4%, the cumulative increase in performance over the period is estimated at 15%; the volatility level is reduced by 2%;\nthe maximum drawdown is divided by 2.5 ; the return distribution is \u00ab normalized \u00bb, i.e. skewness and excess kurtosis are estimated\naround 0 v.s. negative skewness and significant excess kurtosis without the overlay.\/>\n\n\n<a href=\"IMG\/pdf\/Quant_Note__Overlays.pdf\" data-description=\"Example: implementation of a systematic overlay on the HFRI Global index, from January 2008 to\nAugust 2011\">Systematic Overlay<\/a><div id='gallery-1' class='gallery galleryid-20591 gallery-columns-3 gallery-size-herald-lay-c1'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a class=\"herald-popup\" href='http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay.jpg'><img width=\"470\" height=\"313\" src=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-470x313.jpg\" class=\"attachment-herald-lay-c1 size-herald-lay-c1\" alt=\"\" loading=\"lazy\" srcset=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-470x313.jpg 470w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-300x200.jpg 300w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-414x276.jpg 414w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-130x86.jpg 130w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Overlay-187x124.jpg 187w\" sizes=\"(max-width: 470px) 100vw, 470px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a class=\"herald-popup\" href='http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay.png'><img width=\"470\" height=\"313\" src=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-470x313.png\" class=\"attachment-herald-lay-c1 size-herald-lay-c1\" alt=\"\" loading=\"lazy\" srcset=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-470x313.png 470w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-300x200.png 300w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-414x276.png 414w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-130x86.png 130w, http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/overlay-187x124.png 187w\" sizes=\"(max-width: 470px) 100vw, 470px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<h2>Documents joints<\/h2>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/beta.next-finance.net\/wp-content\/uploads\/2011\/10\/Quant_Note__Overlays.pdf\">Systematic Overlay<\/a><\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>The implementation of systematic overlays can be considered as<br \/>\nan alternative to short-term rebalancing of hedge fund portfolios, or as an active component of alternative allocations.<\/p>\n","protected":false},"author":1,"featured_media":20546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1483],"tags":[1809,1687,1743,1655,1658,1723,1673,1813,1690,1675,1716,1651,1661,1660,2243,1844,1843,1917],"_links":{"self":[{"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/posts\/20591"}],"collection":[{"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/comments?post=20591"}],"version-history":[{"count":2,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/posts\/20591\/revisions"}],"predecessor-version":[{"id":20595,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/posts\/20591\/revisions\/20595"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/media\/20546"}],"wp:attachment":[{"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/media?parent=20591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/categories?post=20591"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/beta.next-finance.net\/en\/wp-json\/wp\/v2\/tags?post=20591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}