NZUS.US ETFs are affected by: New Zealand Dollar (NZD) vs. US Dollar (USD) Exchange Rate: A stronger NZD relative to the USD generally increases the ETF price, as NZD-denominated assets become more valuable in USD terms. Conversely, a weaker NZD decreases the price.

Performance of Underlying New Zealand Stocks: The ETF tracks an index of New Zealand companies. The overall performance of these companies directly impacts the ETF's value. Rising stock prices increase the ETF price, while falling prices decrease it.

Interest Rate Differentials: Differences in interest rates between New Zealand and the US can influence currency flows and, consequently, the NZD/USD exchange rate, indirectly affecting the ETF price.

Investor Sentiment: Overall investor confidence and risk appetite toward New Zealand markets influence demand for the ETF. Positive sentiment increases demand and price, while negative sentiment decreases them.

Economic Conditions in New Zealand and the US: Macroeconomic factors like GDP growth, inflation, and unemployment in both countries can affect both the NZD/USD exchange rate and the performance of New Zealand companies, thus impacting the ETF.