According to @TATrader_Alan, Bitcoin (BTC) on the daily chart printed another leg higher after rejecting the lower support line of a broadening wedge, indicating buyers defended that boundary (source: X post by @TATrader_Alan, Oct 19, 2025). For trade planning, the lower trendline is commonly used as invalidation while the upper boundary serves as resistance to monitor in broadening wedge setups (source: ThePatternSite by Thomas Bulkowski, Broadening Wedges overview).