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.
2. Whatâs a flat yield curve? A yield curve goes flat when the premium, or spread, for longer-term bonds drops to zero -- when, in other words, the rate on 30-year bonds is no different than the rate on five-year bonds. If the spread turns negative, the curve is considered âinverted.â