Fund Performance: The underlying performance of FFOG.US's holdings greatly impacts its price. Higher returns in its constituent companies typically increase the ETF's value.

Oil and Gas Prices: As an oil and gas ETF, FFOG.US's price is highly sensitive to fluctuations in crude oil and natural gas prices globally.

Market Sentiment: Overall investor confidence or fear regarding the energy sector can drive demand for FFOG.US, influencing its price.

Interest Rates: Changes in interest rates can affect the attractiveness of FFOG.US relative to other asset classes, thus impacting its price.

Inflation: Inflationary pressures can impact the cost of oil and gas production and demand, thereby affecting the ETF's performance and price.

Geopolitical Events: Global political events, especially those impacting oil-producing regions, can cause significant price volatility in FFOG.US.

Supply and Demand: The fundamental forces of supply and demand for oil and gas influence the profitability of companies held within the ETF, affecting its price.

Currency Exchange Rates: Since oil and gas are often traded in USD, currency fluctuations can indirectly affect the value of FFOG.US, particularly for international investors.

Regulatory Changes: Government regulations related to energy production, consumption, or emissions can significantly impact the prospects of companies held by the ETF and therefore its price.