Interest Rate Sensitivity: EDV is a long-term Treasury ETF, so its price is highly sensitive to changes in interest rates. Rising rates typically cause EDV's price to fall.

Inflation Expectations: Inflation erodes the value of fixed-income securities. Higher inflation expectations can lead to lower EDV prices.

Economic Growth: Strong economic growth may lead to expectations of higher interest rates, negatively impacting EDV. Slower growth may have the opposite effect.

Federal Reserve Policy: The Federal Reserve's monetary policy decisions, such as interest rate hikes or quantitative tightening, significantly influence EDV's price.

Geopolitical Events: Global events that impact the perceived safety of U.S. Treasury bonds can affect demand and, consequently, EDV's price.

Market Sentiment: General investor risk appetite and sentiment towards fixed income can influence EDV. Risk-off sentiment often boosts demand.

Supply and Demand: Basic supply and demand dynamics affect EDV, with higher demand leading to higher prices and vice versa. New Treasury issuance can also play a role.