Before revision:  We show how the imprecision affects the optimal trading strategy and quantify the loss caused by the imprecise estimate compared to a theoretical trader knowing the parameters exactly  .
After revision:  We show how the imprecision affects the optimal trading strategy and quantify the loss caused by the imprecise estimate compared to a theoretical trader knowing the parameters exactly . The main results focus on the geometric and optimization-theoretic viewpoint of the risk-bounded trading strategy and the imprecision resulting from the statistical estimates .