Here's a breakdown of factors affecting QUSRX.US price: [Market Interest Rates]: Rising interest rates typically decrease bond values, lowering QUSRX's Net Asset Value (NAV) as it holds bonds.

[Credit Quality of Holdings]: Downgrades to the credit ratings of bonds held by QUSRX negatively impact its price, while upgrades have a positive effect.

[Economic Growth Expectations]: Stronger economic growth can lead to higher interest rates, negatively affecting bond prices and QUSRX's NAV. Conversely, weaker growth may boost bond prices.

[Inflation Expectations]: Higher inflation expectations usually lead to higher interest rates to compensate, decreasing bond prices and QUSRX's value. Lower inflation expectations may increase bond prices.

[Supply and Demand]: Increased investor demand for QUSRX can push its price upward, while higher selling pressure can decrease its price. This is influenced by overall market sentiment towards bonds.

[Fund Management Strategy]: The decisions of the fund managers, such as sector allocation and duration management, impact the fund's performance and thus its price.

[Geopolitical Events]: Major global events and political instability can create uncertainty in the market, affecting investor sentiment and potentially causing price fluctuations in QUSRX.

[Liquidity of Underlying Assets]: If the bonds QUSRX holds become less liquid, selling them can be challenging, potentially impacting the fund's NAV, particularly during times of market stress.