The quite popular Black-Scholes calculator figures the value of warrants using current price, strike price, time until expiry, interest rate risk and share volatility as variables.

FORBES: Connect

If FTSE is above 6000 at the time of the option expiry calls at 5800 or 5900 will offer the maximum payout.

FORBES: Optional Opportunity

The impact of time decay as the option expiry draws nearer will vary.

FORBES: Optional Opportunity