Underlying Index Performance: 00663L.TW tracks the leveraged performance of a specific index. Therefore, significant movements in that index directly impact the ETF's price. A rising index leads to a price increase, while a falling index results in a price decrease.

Leverage Ratio: Being a leveraged ETF, 00663L.TW aims to amplify the daily returns of its underlying index. A higher leverage ratio magnifies both gains and losses, making the ETF's price more sensitive to index fluctuations.

Supply and Demand: Like any traded asset, the price of 00663L.TW is subject to supply and demand dynamics in the market. High demand can drive the price up, while increased selling pressure can lower it.

Tracking Error: The difference between the ETF's actual returns and the leveraged returns of its target index is called tracking error. Higher tracking error can lead to price discrepancies compared to the expected performance.

Management Fees and Expenses: The expenses associated with managing the ETF, including management fees and operating costs, can indirectly affect its price. Higher fees may slightly reduce returns, impacting the ETF's value over time.

Market Sentiment: Overall market sentiment and investor confidence can influence the demand for leveraged ETFs like 00663L.TW. Positive sentiment may increase investment, while negative sentiment can lead to selling pressure.

Trading Volume and Liquidity: Higher trading volume and liquidity generally lead to tighter bid-ask spreads, making it easier to buy and sell the ETF at a fair price. Lower liquidity can result in wider spreads and potential price volatility.