Interest Rates: Rising rates typically decrease bond values as newer bonds offer higher yields, making older, lower-yielding bonds less attractive.

Credit Risk: Changes in the creditworthiness of the issuers of bonds held by VWITX affect its price; downgrades can lower values.

Inflation Expectations: Higher inflation erodes the real value of fixed income, potentially lowering bond prices as investors demand higher yields.

Market Sentiment: Overall investor optimism or pessimism towards bonds influences demand, impacting VWITX's value.

Economic Growth: Stronger economic growth can lead to higher interest rates, negatively affecting bond prices, while slower growth may boost demand for bonds.

Fund Management: The investment decisions made by the fund managers, including security selection and duration management, impact performance.

Supply and Demand: Increased supply of similar bonds can lower prices, while high demand can raise them.

Liquidity: Lower liquidity in the bond market can make it harder to sell holdings, potentially affecting the fund's NAV.