A stock that investors believe has an excellent chance for significant price appreciation. Performance stock tends to be issued by growth-oriented firms that retain most or all income for reinvestment. The stock usually sells at above-average price-earnings ratios and experiences large price swings.
A day is a unit of time. In common usage, it is an interval equal to 24 hours. It also can mean the consecutive period of time during which the Sun is above the horizon, also known as daytime. The period of time during which the Earth completes one rotation with respect to the Sun is called a solar day.his phenomenon is due to tides raised by the Moon which slow Earth's rotation. Because of the way the second is defined, the mean length of a day is now about 86 400.002 seconds, and is increasing by about 1.7 milliseconds per century (an average over the last 2 700 years).
This is the time it takes Earth to rotate 65.27 cm (25.70 in), as measured at the equator. On average, a mean solar day in the last 365 days was 1.21 ms over 24 hours, so today's day length is above average. Over this period, 140 days have been longer than today, while 226 have been shorter than today. If every day was as long as today, a leap second would have to be added every 712.61 days.