Your 30-day average balance is the average balance of your account across Krak, Kraken and Kraken Pro over the last 30 days, calculated once daily. We use a 30-day average rather than your live balance to keep Rewards stable and predictable. You can find this balance in your Rewards hub.
How do deposits affect it?
When you deposit, the amount is spread evenly across 30 days, so your average rises gradually rather than instantly. For example, if your 30-day average is $1,000 and you deposit $300, your average rises by $10 today to $1,010, reaching $1,150 at day 15 and $1,300 at day 30 with no other changes.