Significant change updates will notify you when the price of a particular asset changes 'significantly'.
Significant Change Coin Update:
You will be notified if the price of an asset changes significantly over a short period of time.
The threshold is decided by us based on the asset type and market capitalization of the asset. Assets with higher market cap have lower thresholds and those with lower market cap have higher thresholds as they are generally more volatile.
For cryptocurrencies, these notifications are for changes in terms of the base pair selected as the source. For example, for the coin ADA, if you have ADA/BTC as the selected source you will be notified if the ADA price in terms of BTC changes significantly (not necessarily the fiat value).