MakerDao

Main dashboard: https://scout.cool/makerdao/mainnet/

What is System Surplus Buffer:

The System Surplus Buffer module is where the Maker protocol revenue (in DAI) is stored. When the stored revenue exceeds a ceiling, it will use the excessive DAI to buy and burn MKR tokens. When MKR tokens are burnt, the number of circulating tokens reduces. It could potentially create an upward pressure on the price due to the decreased token supply.

When the Maker protocol loses money (for example: due to bad debt), it mints MKR, sells it for DAI and puts it back in the System SurPlus Buffer. It could potentially create a downward pressure on the price due to the increased token supply.

Maker Revenues:

To see the live data, please click the "Revenues" on the main dashboard https://scout.cool/makerdao/mainnet/

Today, all the revenue (in DAI) on Maker goes to the System Surplus Buffer. The current revenue consists of three parts:

1. Stability fees: The accrued borrowing interests of all the outstanding loans.

2. Trading revenue: Exchanging USDC for DAI. It's a special Vault which has no stability fee. Instead, there is a 0.1% fee for both borrowing and repaying DAI.

3. Liquidation Penalty: During the liquidation process, 13% of the debt will be taken by Maker as a penalty fee.

When the collected revenue exceeds a ceiling, the auction of MKR tokens will kick off. It is done in batches of 10K Dai. Once the MKRs are bought and burnt, the ceiling will be raised. Below is the most recent time when the ceiling was reached and Dai was taken out to buy the MKR token.

Some Dais were used to purchase MKR. The ceiling of System Surplus was raised from 10M to 30M

In a nutshell, if the revenues that Maker generates 📈, the Dai in the System Surplus Buffer will 📈, the more MKR tokens will be taken out of circulation and the price could potentially 📈.