Market Sentiment: Overall investor confidence and risk appetite influence demand for volatility-linked products like FSZVX.US.

VIX Index: FSZVX.US tracks the VIX, so changes in VIX value directly impact FSZVX.US's price. A rising VIX typically increases its price, and vice-versa.

Futures Contracts: FSZVX.US likely utilizes VIX futures contracts, so the price of those contracts influences FSZVX.US's price. Near-term contracts have a greater impact.

Supply and Demand: Increased demand for FSZVX.US pushes the price higher, while increased selling pressure lowers it. Creation and redemption of shares influence supply.

Time Decay: VIX futures and related products experience time decay (theta), affecting FSZVX.US as its value erodes over time.

Interest Rates: Changes in interest rates can indirectly influence the value of futures contracts used by FSZVX.US.

Volatility of Volatility: The expected volatility of the VIX itself can impact FSZVX.US. Higher expected VIX volatility can increase FSZVX.US price.