1-Day Returns is a measure of the percentage change in the value of an investment over a single trading day. It is calculated using the closing price of the investment on two consecutive trading days.

**Example:**

Suppose an investor bought 100 shares of XYZ Company at $10 per share on Monday. On Tuesday, the closing price of XYZ Company was $12 per share. The 1 Day Return (Daily Close) for the investment would be calculated as follows:

1 Day Return (Daily Close) = ((Tuesday's closing price - Monday's closing price) / Monday's closing price) x 100% = (($12 - $10) / $10) x 100% = 20%

So, in this example, the investor's investment in XYZ Company generated a 1 Day Return (Daily Close) of 20% from Monday's close to Tuesday's close. This means that the value of the investment increased by 20% over the course of one trading day.