Underlying Index Performance: 3LNE tracks an index. Its price heavily depends on how well that index performs. If the index goes up, 3LNE's price tends to rise and vice-versa.

Leverage Factor: 3LNE is leveraged (3x). This means its price changes are amplified. Small movements in the underlying index result in larger price swings for 3LNE, both positive and negative.

Supply and Demand: Like any security, 3LNE's price is affected by supply and demand. More buyers than sellers push the price up; more sellers than buyers push it down.

Management Fees and Expenses: The ETF charges fees to manage the fund. These expenses can slightly reduce the overall return and affect the ETF's price relative to its underlying index.

Tracking Error: This is the difference between the ETF's actual performance and the performance of its underlying index. Tracking error can impact the ETF's price.

Market Sentiment: Overall market optimism or pessimism can influence trading activity and thereby indirectly affect the price of 3LNE, especially given its leveraged nature.

Compounding Effect: Due to the leverage and daily reset, the returns of 3LNE over longer periods can deviate significantly from 3 times the returns of the underlying index due to compounding. This can impact price.