Underlying Index Performance: The price of 00670L.TW is directly affected by the performance of the underlying index it tracks, typically leveraged Taiwan stock indices.

Leverage Ratio: Being a leveraged ETF, its price changes are amplified relative to the underlying index. Higher leverage means greater price fluctuations.

Market Sentiment: General investor sentiment towards the Taiwan stock market and related sectors influences demand and thus the ETF's price.

Supply and Demand: Increased demand for the ETF pushes the price up, while increased selling pressure leads to a price decrease.

Management Fees and Expenses: The ETF's operating costs, including management fees, can indirectly impact its price by reducing returns.

Tracking Error: The ETF's ability to accurately track its underlying index affects its price relative to the index's actual performance.

Interest Rates: Changes in interest rates can impact the attractiveness of leveraged ETFs and affect investor demand.

Economic Conditions: Overall economic conditions in Taiwan and globally can influence investor confidence and impact the ETF's price.