Research on the financial events of 1720 in Britain has overwhelmingly focused on the South Sea Company, but price movements were much more dramatic in the shares of the newly incorporated London Assurance (LA) Company. This paper uses unique archival material on the London Assurance to address...

There is limited evidence of intraday predictability both in the cross-section of US stock returns (see Heston et al., 2010) and in the time-series of the aggregate stock market (see Gao et al., 2015). I find that statistical time-series predictability does not imply economic profitability,...