Here's the information about Ethereum's price relative to Bitcoin:
Price tends to rise after halving:
Historically, the price of Ethereum compared to Bitcoin (ETH/BTC) has a tendency to peak around a year after a Bitcoin halving event.
Price dips after the peak:
Following this peak, the price of ETH/BTC typically falls for several months, reaching its lowest point somewhere between 5 and 6 months after the halving.
Price holds above previous lows:
There's an interesting trend where the price of ETH/BTC seems to never fall below the lowest point it reached during the previous cycle (year-long period)
Currently, in a buying phase:
Right now, it's believed that ETH/BTC is in an accumulation phase, where the price is slowly going up in anticipation of a future rise.