I propose to temporally visualize uncertainty in financial data modelled with Brownian motion. In particular, with appropriate estimates of parameters, it is possible to construct a distribution over Brownian bridges connecting each pair of data points in a time series. I propose to repeatedly sample from this distribution in time, displaying each sample to the user as possible "imputed" data. That is, given a time series of "known" data points, at each time, the user will see a new Brownian bridge connecting each pair of known data points, sampled from the modelled distribution. Combining this approach with a decay in opacity for each newly sampled Brownian bridge, the user should get a very intuitive sense of the underlying modelled uncertainties of the time series. Moreover, the approach should be amenable to vectorized computation on GPU hardware.