Post-earnings volatility in HLIT and BRUN underscores how quickly results-driven rallies can reverse. HLIT rose 28%, retraced about 80% of that gain, then recov

Post-earnings volatility in HLIT and BRUN underscores how quickly results-driven rallies can reverse. HLIT rose 28%, retraced about 80% of that gain, then recovered to trade 6%-7% higher; BRUN jumped 18% before erasing all gains and falling further.