Ethereum Stalls At Price Channel Upper Border Key Support Levels: $456, $438, $430. Key Resistance Levels: $475, $490, $500. Yesterday, Ethereum managed to create a fresh high for November (and a new 2-month high) as it spiked into the $475 resistance (September high-day closing price). Before this, it was struggling to close above $456 for the past five days of trading. Unfortunately, ETH ran into the upper border of a rising price channel and struggled to break above here.