The Rebalance Tolerance is the minimum percent deviation from the Set's target allocation.
For a Buy and Hold Strategy, if the price of Asset 1 increases or decreases by more than the Rebalance Tolerance percentage relative to the Asset 2, then the Set is ready to kickoff a rebalance.
For a Range Bound Strategy, if the price of ETH or BTC increases or decreases past the price threshold, then the Set is ready to kickoff a rebalance to "buy the dip" or take profits.
For Trend Trading Strategies, if the price of an asset (or another indicator) crosses the indicator (e.g. 20 day simple moving average), the the Set triggers a rebalance.
For example, in the ETH Low Volatility Set, if the price of ETH falls more than 25% or rises more than 35% since the last rebalance, the Set kicks off a rebalance to the target allocation of 50% ETH and 50% USD (DAI). For this Set, hypothetically, if the price of ETH was $100 since the last rebalance, the tolerance would be below $75 (75% * $100) and above $135 (135% * $100).