Time-to-expiration range	No. of records	Mean absolute percentage error (MAPE)		Mean percentage error (MPE)		Standard deviation (SD)
Time-to-expiration range	No. of records	BS	SVH	BS	SVH	BS	SVH
≤5	359884	73.7870	55.9240	73.7870	48.9164	30.3493	43.9246
6 - 10	686077	65.0926	46.8797	65.0926	41.8778	31.1297	40.9364
11 - 15	323565	60.7841	43.5895	60.7841	43.0155	27.7266	33.4927
16 - 20	268104	57.0187	49.0960	57.0187	48.9592	28.0565	30.3546
21 - 25	261325	53.1039	48.5147	52.8436	48.4755	29.0431	29.8062
26 - 30	160541	55.0958	52.9967	55.0958	52.9967	26.1643	26.8838
31 - 40	94501	56.6399	44.3648	56.6399	44.3059	22.1895	26.9158
41 - 60	47309	55.2337	49.1082	55.2337	49.0415	23.0327	26.1230