Bond Convexity Approximation Formula

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Bond Convexity Approximation is an approximation measure of the sensitivity of the duration of a bond to changes in interest rates. Check FAQs
BCA=P++P--2(P0)2P0(Δy)2
BCA - Bond Convexity Approximation?P+ - Bond Price when Incremented?P- - Bond Price when Decremented?P0 - Bond Value?Δy - Change in Interest Rate?

Bond Convexity Approximation Example

With values
With units
Only example

Here is how the Bond Convexity Approximation equation looks like with Values.

Here is how the Bond Convexity Approximation equation looks like with Units.

Here is how the Bond Convexity Approximation equation looks like.

13750Edit=35Edit+30Edit-2(5Edit)25Edit(0.02Edit)2
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Bond Convexity Approximation Solution

Follow our step by step solution on how to calculate Bond Convexity Approximation?

FIRST Step Consider the formula
BCA=P++P--2(P0)2P0(Δy)2
Next Step Substitute values of Variables
BCA=35+30-2(5)25(0.02)2
Next Step Prepare to Evaluate
BCA=35+30-2(5)25(0.02)2
LAST Step Evaluate
BCA=13750

Bond Convexity Approximation Formula Elements

Variables
Bond Convexity Approximation
Bond Convexity Approximation is an approximation measure of the sensitivity of the duration of a bond to changes in interest rates.
Symbol: BCA
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Bond Price when Incremented
Bond Price when Incremented refers to how the price of a bond changes when certain factors are incremented or increased.
Symbol: P+
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Bond Price when Decremented
Bond Price when Decremented refers to the impact on the price of a bond when the yield (interest rate) decreases.
Symbol: P-
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Bond Value
Bond Value refers to the current worth or price of a bond in the financial markets.
Symbol: P0
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Change in Interest Rate
Change in Interest Rate refers to the difference between the new interest rate and the previous interest rate.
Symbol: Δy
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other formulas in Bond Yield category

​Go Yield to Maturity
YTM=CP+(FV-PriceYrs)FV+Price2
​Go Current Bond Yield
CBY=CPCBP
​Go Coupon Bond Valuation
CB=CA(1-(1+YTM)-nPYrYTM)+(Pvm(1+YTM)nPYr)
​Go Bank Discount Yield
BDY=(DFV)(360DTM)100

How to Evaluate Bond Convexity Approximation?

Bond Convexity Approximation evaluator uses Bond Convexity Approximation = (Bond Price when Incremented+Bond Price when Decremented-2*(Bond Value))/(2*Bond Value*(Change in Interest Rate)^2) to evaluate the Bond Convexity Approximation, The Bond Convexity Approximation formula is defined as a measure of the sensitivity of the duration of a bond to changes in interest rates. Bond Convexity Approximation is denoted by BCA symbol.

How to evaluate Bond Convexity Approximation using this online evaluator? To use this online evaluator for Bond Convexity Approximation, enter Bond Price when Incremented (P+), Bond Price when Decremented (P-), Bond Value (P0) & Change in Interest Rate y) and hit the calculate button.

FAQs on Bond Convexity Approximation

What is the formula to find Bond Convexity Approximation?
The formula of Bond Convexity Approximation is expressed as Bond Convexity Approximation = (Bond Price when Incremented+Bond Price when Decremented-2*(Bond Value))/(2*Bond Value*(Change in Interest Rate)^2). Here is an example- 13750 = (35+30-2*(5))/(2*5*(0.02)^2).
How to calculate Bond Convexity Approximation?
With Bond Price when Incremented (P+), Bond Price when Decremented (P-), Bond Value (P0) & Change in Interest Rate y) we can find Bond Convexity Approximation using the formula - Bond Convexity Approximation = (Bond Price when Incremented+Bond Price when Decremented-2*(Bond Value))/(2*Bond Value*(Change in Interest Rate)^2).
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