Sett deg på ventelisten

Statistikk › Opsjoner, shorts og posisjonering › Gamma and momentum

Intraday momentum in index futures exists only on negative gamma days

Net gamma positive: 0.82+0.82Net gammapositiveNet gamma negative: 6.63+6.63Net gammanegativ

Slope of the last-half-hour return on the rest-of-day return for the S&P 500, split on lagged net gamma exposure. t statistics 1.03 and 4.78, adjusted R squared 0.05% and 3.58%. The interaction term is minus 123.04 with a t statistic of minus 3.42. Gamma analysis covers January 1996 to May 2020.

The afternoon of an index futures session follows the morning, with a pooled t statistic of 7.29 over forty-six years. Split the sample on dealer net gamma and the effect is entirely absent when gamma is positive.

t = 7.29Pooled slope of the last half hour on the rest of the day, equity index futures
t = 1.03Slope when dealer net gamma is positive: no momentum at all
t = 4.78Slope when net gamma is negative
1.73Sharpe ratio of the pooled timing strategy, gross of costs

Kun for medlemmer

Resten av denne siden er for medlemmer

Below this point there are 4 sections and 2 named sources, roughly 450 words of it. Every figure carries the source it came from and the date the data is from.

Du kan fortsette å se på all statistikk i biblioteket gratis. Innledningen og sammendraget er alltid åpne.