Interest Rate Changes: Rising rates typically lower WFIG.US prices as existing bond yields become less attractive compared to new, higher-yielding bonds.

Credit Risk Perception: Increased concerns about the creditworthiness of issuers within WFIG.US (e.g., defaults) can lead to price declines.

Inflation Expectations: Higher inflation erodes the real value of fixed income payments, causing bond prices in WFIG.US to decrease.

Market Liquidity: Lower liquidity in the bond market can widen bid-ask spreads and potentially decrease the ETF's net asset value (NAV).

Supply and Demand: Basic supply and demand dynamics influence WFIG.US. Higher demand relative to supply pushes prices upwards, and vice versa.

Economic Growth: Stronger economic growth often leads to expectations of higher interest rates and inflation, negatively impacting bond prices in WFIG.US.

ETF Management Fees: While indirectly, higher expense ratios compared to similar ETFs might make WFIG.US less appealing, potentially impacting demand and price.

Underlying Bond Performance: The collective performance of the bonds held within WFIG.US directly affects the ETF's price.

Currency Fluctuations: For international bonds within the fund, exchange rate movements can impact the USD value of those holdings.

Geopolitical Events: Global events that affect economic stability or risk perception can influence investor sentiment and bond prices.