Interest Rates: Rising interest rates generally decrease bond prices, as newly issued bonds offer higher yields, making existing bonds less attractive.

Economic Growth: A strong economy can lead to higher inflation expectations, potentially pushing interest rates up and thus lowering bond prices.

Inflation: Higher inflation erodes the purchasing power of future bond payments, leading to lower bond prices to compensate investors.

Credit Risk: Changes in the perceived creditworthiness of bond issuers can impact bond prices; increased risk leads to lower prices.

Supply and Demand: Basic supply and demand principles apply; increased supply of similar bonds or decreased demand for VSMGX.US can lower its price.

Maturity: Bonds with longer maturities are generally more sensitive to interest rate changes, so their prices fluctuate more.

Federal Reserve Policy: Actions by the Federal Reserve, like adjusting the federal funds rate or engaging in quantitative easing, significantly affect bond yields and prices.