{"paper":{"title":"The small-maturity smile for exponential Levy models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.PR","q-fin.CP"],"primary_cat":"q-fin.PR","authors_text":"Jose E. Figueroa-Lopez, Martin Forde","submitted_at":"2011-05-16T19:33:22Z","abstract_excerpt":"We derive a small-time expansion for out-of-the-money call options under an exponential Levy model, using the small-time expansion for the distribution function given in Figueroa-Lopez & Houdre (2009), combined with a change of num\\'eraire via the Esscher transform. In particular, we quantify find that the effect of a non-zero volatility $\\sigma$ of the Gaussian component of the driving L\\'{e}vy process is to increase the call price by $1/2\\sigma^2 t^2 e^{k}\\nu(k)(1+o(1))$ as $t \\to 0$, where $\\nu$ is the L\\'evy density. Using the small-time expansion for call options, we then derive a small-t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.3180","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}