Value gains to target firm shareholders in takeover bids may be due to potential synergy between bidder and target and/or potential target restructuring based on new information released by the bid. Since these two models have different implications for the anticipated earnings of the target as a stand-alone entity, analysts' earnings forecast revisions (AFR) for the target during the bid may provide evidence for the new information hypothesis. For 326 UK targets of takeover bids during 1987–1993, we estimate analysts' earnings forecast revisions using the Institutional Brokers Estimate System (IBES) and relate them to bid premia paid to target shareholders. Analysts revise their forecasts significantly up on bid announcement. For failed, especially failed hostile, bids, the earnings forecast revision and bid premium are more positively correlated than for successful and friendly bids. This is consistent with the rational expectations behaviour of target shareholders modelled by Grossman and Hart [S.J. Grossman, O.D. Hart, Bell Journal of Economics 11(1) (1980) 42; S.J. Grossman, O.D. Hart, Journal of Finance 36 (1981) 253].

We examine the wealth effects of a comprehensive sample of UK bidders offering contingent payment, or earnout, as consideration for their acquisitions. We show that bidders using earnout generate significantly higher announcement and post-acquisition value gains than bidders using non-earnout currencies (such as cash, stock exchange, or mixed payments). We construct a logistic model to predict when it is optimal for a bidder to offer earnout. We show that bidders offering earnout optimally enjoy significantly higher announcement and post-acquisition gains than bidders offering non-earnout currencies, consistent with our model of the choice of the optimal method of payment. Overall, we provide robust evidence that earnout is an effective payment mechanism to mitigate valuation risk to acquirers, and also enhances acquirer value during the announcement and post-acquisition periods. Our paper contributes to the broader literature on how corporate acquirers use payment currency to manage information asymmetry and the attendant valuation risk.