Task: Explain the following limits on the prices of warrants:
1) If the stock price is below the exercise price of the warrant, the lower bound on the price of a warrant is zero.
2) If the stock price is above the exercise price of the warrant, the lower bound on the price of the warrant is the difference between the stock price and the exercise price.
3) An upper bound on the price of any warrant is the current value of the firm's stock.