Underlying Index Performance: HJUL tracks a specific index. Its price largely reflects the performance of the assets within that index. If the index rises, HJUL's price will generally rise, and vice versa.

Supply and Demand: Basic economics apply. Higher demand for HJUL shares tends to push the price up, while increased selling pressure lowers the price.

Expense Ratio: HJUL has an expense ratio, a percentage of assets deducted annually. While this doesn't directly cause daily price fluctuations, it affects long-term returns and can influence investor sentiment.

Market Sentiment: Overall investor optimism or pessimism can impact HJUL. Broad market downturns might lead to selling pressure, regardless of the underlying index's specific performance.

Trading Volume: Higher trading volume usually means tighter bid-ask spreads, making it easier to buy and sell HJUL shares at a fair price. Low volume can lead to wider spreads and potentially greater price volatility.

Index Rebalancing: When the underlying index rebalances (adds or removes assets), HJUL must adjust its holdings accordingly. This process can briefly affect the ETF's price.

Currency Fluctuations: If HJUL invests in international assets and doesn't hedge, currency fluctuations between the US dollar and those currencies can impact the ETF's value.

Interest Rates: Changes in interest rates, especially if the underlying index contains bonds or interest-rate-sensitive assets, can influence HJUL's price.

News and Events: Major economic news, geopolitical events, or industry-specific announcements related to the assets in the underlying index can cause price movements in HJUL.

Competitor ETFs: The performance and fees of competing ETFs that track similar indexes can influence investor decisions and impact the demand, hence, price of HJUL.