Tender offers can create a cash flow for shareholders which is similar to a dividend. Option
prices will reflect the probability and magnitude of this "dividend." This paper shows that the
value of a box spread is related to the discounted, risk-neutral probabilities of exercising both a
call and a put at the same strike price. Thus, the box spread can serve as a state-contingent claim
for the payment of a dividend, and it is therefore a natural vehicle for speculating on the success
of a tender offer. We show how a box spread could have been used to speculate on the success
of the KKR tender offer for RJR Nabisco.