Delta hedging of stock options with bands. In the sample results below you can see that a delta hedging threshold of 0.01 to 0.05 better than no threshold, especially for frequent rebalancing.
Option Parameters:
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Option Type: Straddle
Option Position: -1.0000
Initial Stock Price (S0): 100.0000
Strike Price (K): 100.0000
Time to Maturity (T): 1.0000
Risk-free Rate (r): 0.0500
Implied Volatility (sigma): 0.2000
Realized Volatility: 0.1500
Transaction Cost: 0.0010
Number of Simulations: 10000
RNG seed: 42
Delta Hedging Threshold: 0.0000
Delta Hedging Simulation Results
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Rebalancing Mean Profit Std Dev Mean/Std
----------- ----------- ------- --------
1 3.7758 8.8546 0.4264
4 3.7540 4.9349 0.7607
12 3.6114 3.1809 1.1354
52 3.3932 1.8781 1.8067
252 2.9258 1.2450 2.3500
2520 1.0847 0.4771 2.2733
5040 -0.0225 0.1758 -0.1279
Best Rebalancing Frequency (Max Mean/Std): 252
Delta Hedging Threshold: 0.0100
Delta Hedging Simulation Results
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Rebalancing Mean Profit Std Dev Mean/Std
----------- ----------- ------- --------
1 3.7758 8.8546 0.4264
4 3.7541 4.9347 0.7608
12 3.6116 3.1808 1.1355
52 3.3960 1.8781 1.8082
252 2.9502 1.2430 2.3735
2520 1.5631 0.4914 3.1813
5040 1.0036 0.2469 4.0644
Best Rebalancing Frequency (Max Mean/Std): 5040
Delta Hedging Threshold: 0.0200
Delta Hedging Simulation Results
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Rebalancing Mean Profit Std Dev Mean/Std
----------- ----------- ------- --------
1 3.7758 8.8546 0.4264
4 3.7540 4.9350 0.7607
12 3.6134 3.1805 1.1361
52 3.4021 1.8814 1.8082
252 3.0053 1.2504 2.4036
2520 2.1025 0.6264 3.3565
5040 1.8373 0.4609 3.9865
Best Rebalancing Frequency (Max Mean/Std): 5040
Delta Hedging Threshold: 0.0500
Delta Hedging Simulation Results
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Rebalancing Mean Profit Std Dev Mean/Std
----------- ----------- ------- --------
1 3.7758 8.8546 0.4264
4 3.7549 4.9389 0.7603
12 3.6190 3.1892 1.1348
52 3.4393 1.9173 1.7938
252 3.1881 1.3591 2.3457
2520 2.8366 0.9719 2.9186
5040 2.7630 0.9136 3.0241
Best Rebalancing Frequency (Max Mean/Std): 5040
Black-Scholes Price (Implied Volatility): 16.0241
Black-Scholes Price (Realized Volatility): 12.3063
BS Price Difference (Implied - Realized): 3.7179
Expected Profit (Ignoring T-Costs): 3.7179
Elapsed Time (s): 69.5800