Annual riskfree rate of treasury bills:  4.28%
Time to maturity in years:  0.477
Time to maturity in days:  174 days
The current stock price of ^SPX is:  6173.07
Annual volatility of ^SPX:  0.2098
Martingale drift mu:  0.077595 (25%)
Expiry date = '2025-12-19'