# Key Events

| Event                                           | Description                                                                                     |
| ----------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| `MarketEntered(AToken aToken, address account)` | Emitted upon a successful [Enter Market](https://docs.aquarius.loan/comptroller/enter-markets). |
| `MarketExited(AToken aToken, address account)`  | Emitted upon a successful [Exit Market](https://docs.aquarius.loan/comptroller/exit-market).    |