The answer is no.
Indeed, if a martingale is a.s. everywhere differentiable, then its quadratic variation is a.s $0$. So, by the Burkholder–Davis–Gundy inequality, the martingale is a.s. constant.
The answer is no.
Indeed, if a martingale is a.s. everywhere differentiable, then its quadratic variation is a.s $0$. So, by the Burkholder–Davis–Gundy inequality, the martingale is a.s. constant.