ZCash (ZEC) has experienced a 5% increase in value over the past 24 hours, driven by a 56% surge in daily trading volume, according to CoinMarketCap data. This rally is accompanied by a 10% rise in open interest, indicating heightened speculative activity. The altcoin is currently targeting the $400 resistance zone, having bounced from $300 two weeks ago. Despite the bullish momentum, ZCash faces short-term trendline resistance, with trading volume slowing over the past week. The $370-$390 range represents a significant supply zone, posing a challenge for further upward movement. However, a breakout past $390 could offer a buying opportunity, while a pullback might signal a range formation between $301 and $368.