Underlying Index Performance: 00680L.TW is a leveraged ETF tracking an index. The index's movements significantly impact its price; if the index rises, the ETF's price should increase by approximately twice that amount, and vice-versa.

Leverage Factor: Being a 2x leveraged ETF, 00680L.TW's price fluctuations are amplified compared to its underlying index. This means higher potential gains, but also higher potential losses, relative to a non-leveraged ETF.

Expense Ratio: The ETF's operating costs, expressed as an expense ratio, are deducted from its assets. A higher expense ratio can slightly reduce returns compared to a similar ETF with lower costs.

Trading Volume and Liquidity: Higher trading volume generally leads to tighter bid-ask spreads, which can make it easier to buy and sell the ETF at a fair price. Lower liquidity can widen spreads and increase trading costs.

Market Sentiment: Overall market sentiment and investor confidence influence buying and selling pressure on ETFs. Positive sentiment can drive prices up, while negative sentiment can cause them to fall.

Rebalancing Frequency: Leveraged ETFs rebalance their portfolios regularly to maintain their target leverage ratio. Rebalancing costs and market movements during rebalancing can affect performance, sometimes negatively due to volatility drag.

Interest Rates: Interest rates affect the cost of borrowing for the ETF to achieve its leverage. Higher interest rates can increase the cost of leverage and potentially reduce returns.

Supply and Demand: Basic supply and demand principles apply. If there's more demand than supply, the price goes up. If there's more supply than demand, the price goes down.