Convexity Flashcards

(13 cards)

1
Q

What is the convexity of a bond?

A

A measure of how a bond’s duration changes as interest rates change — it shows the curvature of the price–yield relationship. Higher convexity = less price drop when rates rise

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2
Q

How to calculate the convexity?

A

Formula :

%price change=(-DurationDy)+(1/2 convexityDy^2)

On the bond function:

Sum of : Time to receipt(Time to receipt+1)weight*(1+YTM/2)-2

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3
Q

How to calculate approximate convexity?

A

((pv-)+(pv+)-(2pvo))/(DYield)2Pvo

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4
Q

Convexity definition

A

Curvature of price-yield relationship

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5
Q

Convexity benefit

A

Improves duration estimate

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6
Q

Price change formula

A

–DurΔy + ½Conv(Δy²)

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7
Q

Positive convexity

A

Normal bonds

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8
Q

Negative convexity

A

Callable bonds

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9
Q

Money convexity

A

Convexity × price

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10
Q

Portfolio convexity

A

Weighted average

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11
Q

Convexity effect

A

Larger for big yield changes

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12
Q

Callable bond convexity

A

Negative at low yields

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13
Q

Putable bond convexity

A

Always positive

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