Performance of Buffer Portfolio: BUFY's price heavily depends on the overall performance of the underlying portfolio it tracks, the Buffer Portfolio, which holds a mix of stocks, bonds, and cash.

ETF Supply and Demand: Basic economic principles of supply and demand affect BUFY's price. Higher demand tends to push the price up, while increased selling pressure can cause it to decline.

Interest Rate Changes: As BUFY allocates a portion of its assets to bonds, fluctuations in interest rates can impact its value. Rising rates can decrease bond prices, and vice versa.

Market Sentiment: General investor sentiment towards the financial markets, particularly for stocks and bonds, will affect BUFY's price. Overall positive sentiment increases interest in investment.

Expense Ratio & Management Fees: The ETF's operating costs, expressed as the expense ratio, can affect its price. Higher expenses potentially reduce the returns available to investors, impacting the ETF's attractiveness and price.