Constituent Stock Prices: The underlying value of 00876.TW is directly tied to the market prices of the companies included in the index it tracks. When these stocks increase, the ETF price tends to rise. Conversely, if the constituent stock prices fall, the ETF price typically declines.

Supply and Demand: Basic economic principles dictate that higher demand for the ETF will generally push its price up, while increased supply, often through creation units, tends to lower the price. Trading volume and investor sentiment play key roles here.

Management Fees and Expenses: The operational costs of running the ETF, including management fees, trading expenses, and other administrative costs, are deducted from the ETF's assets. These expenses, while relatively small, can gradually impact the ETF's overall return and price.

Dividend Yield: Dividends paid by the underlying companies in the index are passed on to ETF holders. Higher dividend yields can make the ETF more attractive, potentially influencing demand and price.

Interest Rates: Changes in interest rates can influence investor appetite for equities, including ETFs like 00876.TW. Higher interest rates might make bonds more appealing, potentially leading to some outflow from the ETF.