Underlying Assets Performance: The price of 00728.TW, an ETF tracking the FTSE Taiwan RIC Capped Index, is primarily affected by the performance of the Taiwanese companies within that index. Stronger performance of these underlying assets generally drives the ETF's price upward.

Supply and Demand: Like any traded asset, 00728.TW's price is influenced by supply and demand. Higher demand, such as during periods of optimism about the Taiwanese market, can push the price up, while increased selling pressure can lead to price declines.

Index Reconstitution: Changes in the composition of the FTSE Taiwan RIC Capped Index, such as additions or deletions of companies, can impact 00728.TW's price as the ETF manager adjusts the portfolio to mirror the updated index.

Expense Ratio and Tracking Error: The ETF's expense ratio, the annual cost of managing the fund, indirectly affects its price by reducing returns. Tracking error, the difference between the ETF's performance and the index it tracks, can also lead to price discrepancies.

Market Sentiment: Overall market sentiment toward Taiwanese equities and the broader Asian market can significantly influence the demand for 00728.TW and its price. Positive sentiment generally drives prices upward.

Currency Fluctuations: As 00728.TW invests in Taiwanese companies, fluctuations in the exchange rate between the Taiwan dollar (TWD) and other currencies, such as the US dollar, can impact its price for foreign investors.

Interest Rates: Changes in interest rates in Taiwan and globally can indirectly affect 00728.TW's price. Higher interest rates can make bonds more attractive relative to stocks, potentially leading to lower demand for the ETF.

Economic Data: Economic indicators such as GDP growth, inflation, and unemployment in Taiwan can influence investor sentiment and, consequently, the demand for and price of 00728.TW.

Geopolitical Events: Geopolitical events, especially those affecting Taiwan or the broader region, can impact investor confidence and lead to volatility in 00728.TW's price.

Fund Flows: Large inflows into 00728.TW can increase demand and push the price up, while significant outflows can create selling pressure and lower the price.