catalyst for a trend change? Who knows. But the chart is simple enough, showing the USD market (available on Gemini - perhaps eventually coming to Coinbase?). $100 should be a strong psychological support level, established in the spring of last year. Not much to say, look at the volume and wait to see if we see weakness or strength around the same levels.
Longer time-frame ZECBTC chart:
1.6M Sats could be a nice zone for a bullish RSI divergence setting up for a longer time-frame trend change. Time will tell.