Volatility Persists for iShares US Tech Breakthrough ETF as Price Dips to $46.06 The iShares US Tech Breakthrough Multisector ETF (TECB) closed at $46.06 on April 17, reflecting ongoing volatility. Trading volume rose to over 86,000 shares amid a 1.35% intraday swing. Technical signals remain bearish, and short-term forecasts suggest further declines, underscoring caution for investors tracking tech innovation sectors.123