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.
Volatility (finance) - Mathematical definition. 1  For any fund that evolves randomly with time, the square of volatility is the variance of the sum of infinitely many instantaneous rates of return, each taken over the nonoverlapping, infinitesimal periods that make up a single unit of time.