Underlying Asset Performance: BEGU39.SA's price is directly tied to the performance of the underlying assets it tracks. If those assets increase in value, BEGU39.SA's price will likely rise too.

Supply and Demand: Market forces of supply and demand also play a role. High demand for BEGU39.SA can push its price above its net asset value, while increased selling pressure can drive the price down.

Fund Expenses: The ETF's expense ratio, which covers management fees and operating costs, indirectly impacts the price as it reduces the overall return to investors. Higher expense ratios can make the ETF less attractive.

Index Tracking Accuracy: How closely the ETF mirrors its target index is crucial. Any deviation from the index's performance can affect investor confidence and consequently, the ETF's price.

Market Sentiment: General market sentiment and investor confidence in the overall economy or specific sectors tracked by BEGU39.SA can influence its price, even if there are no fundamental changes in the underlying assets.

Foreign Exchange Rates: If BEGU39.SA holds assets denominated in foreign currencies, fluctuations in exchange rates can impact its price when translated back into the local currency.

Interest Rates: Changes in interest rates can impact the attractiveness of BEGU39.SA, particularly if it holds fixed-income assets. Rising interest rates can make the ETF less appealing, potentially lowering its price.

Regulatory Changes: New regulations or changes in existing regulations that affect the underlying assets or the ETF itself can influence its price.