ETHBTC has been a leading indicator to buy/sell your ALT positions over the last 2 years & been very effective in doing so.
We've been ranging in a trend on ETHBTC which identifies selling ALT positions at the top of the range (TL RESISTANCE) and buying at the bottom of the range (TREND LINE SUPPORT)
I've indentified the correlation using the LBC chart on the right. Note how when ETHBTC touches the bottom trend line, you get sharp bullish moves, which also allign to the same dates on LBC's movement.