Fund performance: NEFZX's historical and current performance impacts investor demand. Strong returns typically attract more investment, driving up the price.

Market conditions: Broad market trends, like bull or bear markets, affect overall investor sentiment and can influence the demand for and price of NEFZX.

Interest rates: Changes in interest rates can impact bond yields and investor appetite for fixed income funds like NEFZX.

Expense ratio: A fund's expense ratio can subtly impact its attractiveness and ultimately its price. Higher costs might deter some investors.

Fund manager decisions: The fund manager's investment strategy and asset allocation choices play a crucial role in determining the fund's performance and price.

Economic indicators: Economic data like GDP growth, inflation, and unemployment rates can influence investor confidence and fund flows, affecting NEFZX's price.

Credit ratings: Credit ratings of the bonds held within NEFZX directly impact its perceived risk and value, influencing its price.

Fund flows: Large inflows or outflows of investor money can affect NEFZX's net asset value (NAV) and consequently its price.

Global events: Geopolitical events and global economic shifts can create volatility and impact market sentiment, which can affect the price of NEFZX.

Sector performance: The performance of the specific sectors in which NEFZX invests will greatly influence its value, and so, its price.