From the perspective of relative market value:
BTC's highest market value in the last round was 1.228T, and it is currently 1.396T, with a market value increase of 13%.
ETH is deflationary, with a highest market value of 571B in the last round and a current market value of 430B.
If it reaches the same relative amplitude as BTC, it should now be 571*1.13=645B, which is just short of a relative increase of 50% compared to the current market value of 430B.