A photocell is any of a wide range of sensors that react based on the presence of light or electromagnetic energy. They can be found in many different forms, from solar panels that use light to generate electricity, to photoresistors, which shift in resistance based on how much light is present.
Bond prices and yields are like a seesaw: when bond yields go up, prices go down, and when bond yields go down, prices go up. In other words, a move in the 10-year Treasury yield from 2.2% to 2.6% indicates negative market conditions, while a move from 2.6% to 2.2% indicates positive market performance.
Coupon rateâThe higher a bondâs coupon rate, or interest payment, the higher its yield. Thatâs because each year the bond will pay a higher percentage of its face value as interest. PriceâThe higher a bondâs price, the lower its yield. Thatâs because an investor buying the bond has to pay more for the same return.