Underlying Asset Performance: The primary driver is the performance of the assets the ETF tracks, typically Brazilian corporate bonds. If these bonds increase in value, the ETF's price should rise, and vice versa. Interest Rate Changes: Changes in interest rates in Brazil significantly impact bond prices. Rising interest rates generally decrease bond values, while falling rates increase them. Credit Risk: Perceived creditworthiness of the bond issuers within the ETF's portfolio impacts price. Downgrades increase risk, lowering prices. Upgrades improve sentiment, raising prices. Supply and Demand: Market demand for the ETF shares themselves influences pricing. High demand can push the price above the net asset value, while low demand can cause it to trade at a discount. Currency Fluctuations: As the ETF invests in Brazilian assets, changes in the BRL/USD exchange rate can affect its price for non-Brazilian investors. A weaker Real decreases value in USD terms. Market Sentiment: Overall investor sentiment towards emerging markets, Brazilian economy, and fixed income assets influences buying and selling pressure on the ETF.