What does AT-EXPIRY OPTION mean?

AT-EXPIRY OPTION meaning in Law Dictionary

BINARY SOLUTION that grants the buyer a payoff at expiration add up to a hard and fast INVESTMENT or money value if the cost of the UNDERLYING marketplace guide breaches the BARRIER at any time through the deal. See additionally ASSETATEXPIRY SOLUTION, ATHIT OPTION,BINARYBARRIER CHOICE, CASHATEXPIRY SOLUTION.