ERF Wireless (ERFB) Stock Chart & Stock Price History Add Compare Share Share Chart Stock AnalysisChartBuy This Stock ERF Wireless Stock Price Performance The ERF Wireless (ERFB) stock chart highlights key performance trends across multiple timeframes.Five years ago, the stock traded at $0.01, representing a 100.00% decrease over that period. At the time, it had a market cap of and a volume of 583,199 shares. Receive ERFB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ERF Wireless and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Year Performance-100.00% ERFB Stock Chart for Thursday, June, 12, 2025 ERFB Chart by TradingView ERF Wireless Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel No price data in the selected date range. 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