Here are the factors affecting the price of IIRSX.US funds: Market Interest Rates: Rising interest rates generally decrease bond prices and therefore negatively impact IIRSX, as bonds become less attractive compared to newer, higher-yield issues.

Inflation Expectations: High inflation expectations can erode the value of fixed-income investments, causing bond prices within IIRSX to decline.

Credit Risk: Changes in the perceived creditworthiness of bond issuers within IIRSX’s portfolio influence bond prices; downgrades lead to price decreases.

Economic Growth: Strong economic growth often leads to rising interest rates, which can pressure bond prices in IIRSX downwards.

Fund Management Decisions: Investment strategies and security selection by the fund manager directly affect the fund's performance and NAV.

Investor Sentiment: Shifts in investor confidence and risk appetite can trigger buying or selling pressures on IIRSX, affecting its price.

Supply and Demand: High demand for IIRSX can increase its price, while increased supply through new share issuance can potentially dilute its value.

Liquidity of Holdings: If the bonds held by IIRSX are illiquid, it can be difficult to sell them quickly, impacting the fund's net asset value when redemptions occur.