Vanguard Extended Duration Treasury ETF (NYSEARCA:EDV – Get Rating) saw unusually-strong trading volume on Monday . Approximately 220,894 shares changed hands during mid-day trading, a decline of 33% from the previous session’s volume of 327,957 shares.The stock last traded at $90.40 and had previously closed at $92.48. Vanguard Extended Duration Treasury ETF Stock Performance The […]