專為美股交易者打造的 TradingView 四巫日（Quadruple Witching）指標！自動校準美東時區與假期提前結算，於圖表底部提供極簡微型標籤提醒。Designed for US stock traders, this TradingView Quadruple Witching indicator! Auto-syncs with US Eastern Time and smart holiday shifts to provide minimalist micro-markers.