| a | base_asset_symbol | Name of base asset |
| i | N/A | Asset slot number of asset a.i∈0,1,...,Na |
| ati | acquisition_time_sec_utc | A creation timestamp of asset a |
| api | buy_price | A buy price of asset a |
| aqi | base_asset_quantity | Current qunantity of asset a at timestmap ati |
| aciB | buy_commission_rate | Buy commision rate of asset a |
| axi | asset_holding_rate | Current holding rate of asset a |
| axi⋆ | N/A | Optimal holding rate of asset a |