Interest Rate Changes: Higher interest rates typically decrease JHIGX.US's price, as existing bonds become less attractive compared to newly issued bonds with higher yields.

Credit Risk Perception: Increased concerns about the creditworthiness of the issuers of the high-yield bonds held by JHIGX.US can drive its price down.

Economic Growth Expectations: Stronger economic growth expectations can sometimes reduce demand for high-yield bonds, as investors may shift to riskier assets like stocks, potentially lowering the fund's price.

Inflation Expectations: Rising inflation expectations may lead to higher interest rates and lower bond prices, including JHIGX.US, to compensate for the decreasing purchasing power of future payments.

Market Liquidity: Reduced liquidity in the high-yield bond market can make it harder to sell bonds quickly, potentially leading to lower prices for JHIGX.US.

Fund Flows: Significant outflows from JHIGX.US may force the fund to sell bonds to meet redemption requests, which could put downward pressure on its price.