Fund Performance: Historical and relative performance compared to its benchmark and peer group influences investor demand. A strong track record can increase demand, driving the price up.

Market Conditions: Overall stock market trends, economic data (inflation, interest rates, GDP growth), and investor sentiment significantly impact the fund's price. Positive market conditions typically lead to higher fund values.

Interest Rates: Rising interest rates can make bonds more attractive, potentially leading investors to shift assets from stock funds like FZVDSX.US, reducing demand and price. Conversely, falling rates may boost demand for the fund.

Fund Flows: Significant inflows into the fund can drive up its price as the fund manager buys more underlying assets. Conversely, large outflows can force the fund to sell assets, potentially lowering the price.

Sector Performance: The sectors in which the fund invests (e.g., technology, healthcare) play a role. If those sectors perform well, the fund is likely to benefit. Negative sector performance can drag down the fund's price.

Expense Ratio: While not a direct driver of price, a high expense ratio can make the fund less attractive to investors over time, potentially affecting demand and ultimately, its market value.