Fund Performance: NPFCX's historical returns and relative performance compared to its benchmark and peer funds heavily influence investor demand and, therefore, its price.

Market Conditions: Broad market trends (e.g., bull or bear markets) and sector-specific performance (NPFCX invests in healthcare) impact its underlying holdings and overall value.

Interest Rates: Changes in interest rates affect the valuation of fixed-income securities held within the fund, potentially impacting its net asset value (NAV).

Economic Indicators: Economic data releases (e.g., inflation, GDP growth) influence investor sentiment and expectations for the healthcare sector, indirectly affecting NPFCX's price.

Fund Management: Decisions made by the fund manager, such as asset allocation and security selection, directly affect the fund's performance and, consequently, its price.

Investor Sentiment: Overall investor confidence and risk appetite can drive money flows into or out of NPFCX, impacting its demand and price.

Expense Ratio: While the expense ratio doesn't directly change the price, it reduces returns, influencing long-term attractiveness and potentially demand.

Fund Size: A large fund size can sometimes limit investment flexibility, potentially affecting performance and investor interest, which could influence price.

Regulatory Changes: New regulations affecting the healthcare industry or financial markets can create uncertainty and impact NPFCX's performance.

Healthcare Industry: News and developments within the healthcare sector (e.g., drug approvals, policy changes) directly affect the performance of healthcare companies held by NPFCX.