Consider a time-varying linear system \begin{align*} \dot x(t)=A(t)x(t) \end{align*} and its average system (the existence is assumed) \begin{align*} \dot x(t)=\bar A x(t), \quad \bar A=\lim_{t\rightarrow \infty}\frac{ \int_{t_0}^{t}A(s)ds}{t-t_0}. \end{align*} By the classic averaging theory, if the average system is asymptotically stable, then there exists an $\varepsilon^* >0$ such that for all $\varepsilon \in (0, \varepsilon^*)$, the following fast time-varying system \begin{align*} \dot x(t)=A(t/\varepsilon)x(t) \end{align*} is asymptotically stable. Can this result be extended to stochastic case as follows? For the stochastic linear system \begin{align*} d x(t)=A(t)x(t)dt+B(t)x(t)dB(t), \end{align*} suppose its time-average system \begin{align*} d x(t)=\bar A x(t)dt+\bar Bx(t)dB(t), \quad \bar A=\lim_{t\rightarrow \infty}\frac{ \int_{t_0}^{t}A(s)ds}{t-t_0}, \bar B=\lim_{t\rightarrow \infty}\frac{ \int_{t_0}^{t}B(s)ds}{t-t_0} \end{align*} exists and it is asymptotically stable in a certain sense. Then can we conclude that the fast time-varying stochastic system \begin{align*} d x(t)=A(t/\varepsilon)x(t)dt+B(t/\varepsilon)x(t)dB(t), \end{align*} for all $\varepsilon \in (0, \varepsilon^*)$ is asymptotically stable in the same sense as above? Any pointer will be helpful and be appreciated.