Underlying Asset Performance: 00887.TWO tracks the FTSE Emerging Markets Index. Therefore, the performance of the underlying stocks within that index directly impacts its price. Upward movement in these emerging market stocks generally leads to an increase in the ETF's price and vice versa.

Supply and Demand: General market sentiment and investor demand for emerging market exposure affects the ETF's price. High demand usually drives the price upward, while increased selling pressure can lower it.

Currency Fluctuations: Since the ETF invests in emerging markets, currency exchange rates play a role. A strengthening NTD against those currencies can negatively impact returns, and vice-versa.

Expense Ratio and Management Fees: The ETF’s expense ratio and management fees, though typically small, gradually reduce the fund's net asset value and indirectly affect its price over time.

Political and Economic Stability: Political and economic events in the emerging markets where the ETF invests can significantly impact investor sentiment and thereby influence the ETF’s price. Instability can cause prices to drop.

Dividend Payments: Dividends paid by the underlying companies in the index contribute to the ETF's overall return. These dividends are usually distributed to ETF holders and influence the ETF's attractiveness.

Interest Rates: Changes in global or local interest rates can affect investment flows to and from emerging markets, consequently impacting the ETF's price. Higher interest rates elsewhere might make emerging markets less attractive.

Global Economic Conditions: Overall global economic health influences emerging market performance. A strong global economy typically supports emerging market growth, boosting the ETF's price.