# Staking Yield Reference Rates

## Active Staking Yields

The active single assets endpoint provides information on which staking yield rates that are currently being calculated by Vinter.&#x20;

## Staking Yields Daily

For each yield rate, Vinter calculates an end-of-day value. This value is the official value for each yield rate and is published at different times, specified by the index methodology.

{% hint style="info" %}
For the time being, the yield estimates are extracted from APIs or staking providers' websites at 9 AM London time. It allows for a long time period for data validation and incident management. The impact on data quality is low in practice thanks to the low frequency of updates on staking providers' websites.
{% endhint %}

Every yield rate series has a serial number as part of its symbol, whose description can be found below.&#x20;

Vinter offers both Annual Percentage Rate (APR) values as well Annual Percentage Yield (APY) values. If the yield rate is an APR the symbol will contain **apr** in its name. If the yield rate is an APY the symbol will contain **apy** in its name.&#x20;