I also submitted proof of assets using the liquid assets and cash held in my securities account. Initially, I provided my balance from three months prior, and it was accepted. However, this is not considered the standard method. That said, considering recent financial trends, I think many younger people nowadays keep most of their assets in securities accounts and only keep enough in bank accounts for daily living expenses. So, this approach may become more common in the future, but since institutions still tend to be conservative, I think it’s important to keep that in mind when applying.