The performance of a particular scheme of a Mutual Fund is denoted by Net Asset Value (NAV). In simple words, NAV is the market value of the securities held by the scheme. Mutual Funds invest the money collected from investors in securities markets. Since market value of securities changes every day, NAV of a scheme also varies on day to day basis. The NAV per unit is the market value of securities of a scheme divided by the total number of units of the scheme on any particular date. The video on the left explains how NAV is calculated. The NAVs of all Mutual Fund schemes are declared at the end of the trading day after markets are closed, in accordance with SEBI Mutual Fund Regulations.