When switching days, the oldest day is chosen as the start, where all currencies have relatively no gain or loss.
Instead, it might be useful to see a day in the range chosen as the bias day. This way all the currencies would cross zero together at some point, and past and future could be seen relative to that equilibrium.
When switching days, the oldest day is chosen as the start, where all currencies have relatively no gain or loss.
Instead, it might be useful to see a day in the range chosen as the bias day. This way all the currencies would cross zero together at some point, and past and future could be seen relative to that equilibrium.