This thesis explains about pricing European floating strike lookback call
options using a binomial tree model with combinatorial approach. The basic idea
is to divide the price paths reaching node terminal into groups by their extreme
stock prices. The price paths in the same group have the same payoff. Then the
value contributed by grups are evaluated. For evaluating the value contributed by
terminal node, two different cases are considered. The value contributed by
terminal node is the sum of the value contributed by grups. The value of a floating
strike lookback call option is the sum of the values contributed by all the terminal
nodes