Economic Conditions: Broad economic factors like GDP growth, inflation, and interest rates heavily influence the performance of the underlying assets held by JHSGX.US.

Market Sentiment: Investor confidence and overall market trends can drive buying or selling pressure on the fund, impacting its price.

Bond Yields: As a bond fund, JHSGX.US is sensitive to changes in prevailing interest rates and bond yields; rising rates typically decrease bond values.

Credit Risk: The creditworthiness of the bond issuers within the fund's portfolio affects its value; downgrades in credit ratings can negatively impact prices.

Fund Management: The fund manager's investment strategies, security selection, and ability to navigate market conditions play a significant role in the fund's performance.

Supply and Demand: Simple market dynamics of supply and demand for the fund's shares can influence its price.

Fund Expenses: Fees and expenses associated with managing the fund, such as management fees and operating expenses, detract from returns and influence its relative value.

Liquidity: The ease with which the fund's underlying assets can be bought and sold can affect its price, particularly during periods of market stress.