Firms changing their listing from the less regulated AIM to the more regulated main section of the London Stock Exchange exhibit positive returns on the day the decision is announced, while for firms moving in the opposite direction both announcement and implementation day returns are negative....

This study analyses the forecasting accuracy of the implied volatility of options on futures contracts for the delivery of CO2 emissions allowances (carbon options) traded on the European Climate Exchange. We demonstrate that option implied volatility is highly informative about the variance of...