Aster said it now supports Binance-issued bStocks as collateral for perpetual contracts on BNB Chain. After enabling multi-asset mode, users can deposit bStocks into Aster perpetual accounts, with up to 90% of the assets' market value counted as margin. Initial supported tokens are TSLAB, NVDAB, CRCLB and SNDKB. The setup expands the earlier "holdings plus trading" use case by specifying how tokenized stock assets can be posted as collateral in Aster's perpetuals market on BNB Chain.