This is a sign that something is either dripping, leaking, or not draining. But don't panic, sometimes it can be a very minor problem. In the cooling mode, the indoor evaporator coil and the suction line (the large copper refrigerant line in black insulation) sweats.
DEFINITION of 'Zero-Volatility Spread-Z-spread'. The constant spread that will make the price of a security equal to the present value of its cash flows when added to the yield at each point on the spot rate Treasury curve where a cash flow is received.he Z-spread is also known as a static spread.
Variance is a measure of distribution of returns and is not neccesarily bound by any time period. Volatility is a measure of the standard deviation (square root of the variance) over a certain time interval. In finance, variance and volatility both gives you a sense of an asset's risk. If the mean is the average return of an asset, variance and volatility can give you a sense of how much that asset either overperforms or under performs.