Equity Market Performance: Broad movements in the US stock market, particularly small-cap and mid-cap stocks, significantly influence MHESX's value.

Sector Allocation: MHESX's investments in specific sectors like technology, healthcare, or consumer discretionary impact its performance based on these sectors' relative strength.

Management Expertise: The fund manager's stock-picking ability and strategic asset allocation directly affect returns and thus, the fund's price.

Interest Rate Changes: Rising interest rates can negatively impact growth stocks, potentially lowering MHESX's price.

Fund Flows: Large inflows can inflate the price, while outflows may depress it due to forced selling of underlying assets.

Economic Indicators: Economic growth, inflation, and employment data shape market sentiment and impact the performance of MHESX's holdings.

Company-Specific News: News about the individual companies within MHESX's portfolio can lead to fluctuations in their stock prices and, consequently, the fund's value.