{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T15:32:24Z","timestamp":1786548744950,"version":"3.56.0"},"posted":{"date-parts":[[2014]]},"group-title":"SSRN","reference-count":33,"publisher":"Elsevier BV","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>We study the magnitude of tail risk --- particularly lower tail downside risk --- that is present in intraday versus overnight market returns and thereby examine the nature of the respective market risk borne by market participants. Using the Generalized Pareto Distribution for the return innovations, we use a GARCH model for the conditional market return components of major stock markets covering the U.S., France, Germany and Japan. Testing for fat-tails and tail index equality, we find that overnight return innovations exhibit significant tail risk, while intraday innovations do not. We illustrate this volatility versus tail risk trade-off based on conditional Value-at-Risk calculations. Our results show that overnight downside market risk is composed of a moderate volatility risk component and a significant tail risk component. We conclude that market participants face different intraday versus overnight risk profiles and that a risk assessment based on volatility only will severely underestimate overnight downside risk.<\/jats:p>","DOI":"10.2139\/ssrn.2494387","type":"posted-content","created":{"date-parts":[[2014,9,17]],"date-time":"2014-09-17T11:21:08Z","timestamp":1410952868000},"source":"Crossref","is-referenced-by-count":0,"title":["Is Risk Higher during Non-Trading Periods? 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periods"},{"key":"ref18","doi-asserted-by":"publisher","first-page":"868","DOI":"10.1016\/j.jempfin.2008.02.004","article-title":"Predicting tail-related risk measures: The consequences of using GARCH filters for non-GARCH data","volume":"15","author":"Amine Jalal","year":"2008","journal-title":"Journal of Empirical Finance"},{"key":"ref19","doi-asserted-by":"publisher","first-page":"559","DOI":"10.1016\/s0927-5398(03)00005-7","article-title":"Testing for differences in the tails of stock-market returns","volume":"10","author":"Eric Jondeau","year":"2003","journal-title":"Journal of Empirical Finance"},{"issue":"2","key":"ref20","doi-asserted-by":"publisher","first-page":"171","DOI":"10.1162\/003465397556755","article-title":"Estimating the density tail index for financial time series","volume":"79","author":"Phillip Kearns","year":"1997","journal-title":"Review of Economics and Statistics"},{"key":"ref21","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1023\/A:1009979331996","article-title":"Estimation of value at risk by extreme value methods","volume":"3","author":"Sarah Lauridsen","year":"2000","journal-title":"Extremes"},{"key":"ref22","doi-asserted-by":"publisher","first-page":"1097","DOI":"10.1016\/s0378-4266(99)00077-1","article-title":"From value at risk to stress testing: The extreme value approach","volume":"24","author":"Francois M Longin","year":"2000","journal-title":"Journal of Banking and Finance"},{"key":"ref23","doi-asserted-by":"publisher","first-page":"394","DOI":"10.1086\/294632","article-title":"The variation of certain speculative prices","volume":"36","author":"Mandelbrot","year":"1963","journal-title":"Journal of Business"},{"key":"ref24","doi-asserted-by":"publisher","first-page":"271","DOI":"10.1016\/s0927-5398(00)00012-8","article-title":"Estimation of tail-related risk measures for heteroscedastic financial time series: An extreme value approach","volume":"7","author":"Alexander J Mcneil","year":"2000","journal-title":"Journal of Empirical Finance"},{"key":"ref25","doi-asserted-by":"publisher","first-page":"729","DOI":"10.1111\/j.1540-6261.1980.tb03495.x","article-title":"A theory of common stock returns over trading and non-trading periods","volume":"35","author":"George S Oldfield","year":"1980","journal-title":"Journal of Finance"},{"key":"ref26","article-title":"Electronic communication networks and after-hours trading, Working Paper, U.S. Securities and Exchange Commission","year":"2000","journal-title":"SEC"},{"key":"ref27","doi-asserted-by":"publisher","first-page":"67","DOI":"10.1093\/biomet\/72.1.67","article-title":"Maximum likelihood estimation in a class of nonregular cases","volume":"72","author":"Richard L Smith","year":"1985","journal-title":"Biometrika"},{"key":"ref28","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1093\/rfs\/3.1.37","article-title":"Stock market structure and volatility","volume":"3","author":"Hans R Stoll","year":"1990","journal-title":"Review of Financial Studies"},{"key":"ref29","doi-asserted-by":"publisher","first-page":"1832","DOI":"10.1016\/j.jbankfin.2012.09.022","article-title":"Long term asset tail risks in developed and emerging markets","volume":"37","author":"Stefan T M Straetmans","year":"2013","journal-title":"Journal of Banking and Finance"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1515\/9781400839254","author":"Stephen J Taylor","year":"2005","journal-title":"Asset price dynamics, volatility, and prediction (Princeton)"},{"key":"ref31","doi-asserted-by":"publisher","first-page":"165","DOI":"10.1016\/j.jempfin.2003.11.002","article-title":"Measuring tail thickness under GARCH and an application to extreme exchange rate changes","volume":"12","author":"Niklas Wagner","year":"2005","journal-title":"Journal of Empirical Finance"},{"key":"ref32","doi-asserted-by":"publisher","first-page":"723","DOI":"10.1111\/j.1540-6261.1985.tb04996.x","article-title":"An investigation of transaction data for NYSE stocks","volume":"40","author":"Robert A Wood","year":"1985","journal-title":"Journal of Finance"},{"key":"ref33","doi-asserted-by":"publisher","first-page":"931","DOI":"10.1016\/0165-1889(94)90039-6","article-title":"Threshold heteroskedastic models","volume":"18","author":"Jean-Michel Zakoian","year":"1994","journal-title":"Journal of Economic Dynamics and Control"}],"container-title":[],"original-title":[],"deposited":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T14:31:25Z","timestamp":1786545085000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ssrn.com\/abstract=2494387"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":33,"URL":"https:\/\/doi.org\/10.2139\/ssrn.2494387","relation":{},"subject":[],"published":{"date-parts":[[2014]]},"subtype":"preprint"}}