[Retracted] Dynamic Index Optimal Investment Strategy Based on Stochastic Differential Equations in Financial Market Options

Table 1

Bond investment proportion table.

Year	Company A	Company B	Company C	Company D	Average value
2015	0.69	0.59	0.59	0.53	0.6
2016	0.66	0.57	0.46	0.52	0.55
2017	0.55	0.57	0.43	0.52	0.52
2018	0.47	0.50	0.51	0.50	0.495
2019	0.41	0.45	0.46	0.47	0.45