Yield to Call: Why a Callable Bond’s Real Return Can Be Lower Than Its YTM

A bond quotes a lovely yield on the screen, you buy it, and three years later the issuer simply hands your money back. No more coupons. That’s the risk built into every callable bond, and it’s why the yield to call often tells you more about your real return than the headline yield to maturity. If a bond can be bought back early, the number that matters is the one that assumes it will be.

We’ll walk through what yield to call means, how it is calculated, how it differs from YTM, and why the gap between the two can work for you or against you depending on the price you pay. The worked examples use illustrative numbers, not any real bond, so you can follow the arithmetic without worrying about live market prices.

What is yield to call?

Investopedia defines yield to call as the return an investor earns if a callable bond is bought at today’s market price and held until the call date, when the issuer can repurchase it before maturity. Technically, it is the interest rate that makes the present value of the remaining coupons plus the call price equal to the bond’s current price.

Three assumptions sit underneath that figure:

• The bond is called on the earliest possible call date.
• You buy it at the current market price.
• You hold it until that call date.

Change any of those and the yield changes too. That’s the first thing to keep in mind: YTC is a scenario, not a promise. So is YTM, for that matter. Both are just “if this happens, here is what you earn” calculations.

Why issuers attach a call option at all

A callable bond, also called a redeemable bond, gives the issuer the right to repay investors before maturity. As Investopedia’s explainer on callable bonds puts it, companies typically use that right when interest rates fall, so they can repay expensive old debt and borrow again at a lower rate.

Think about it from the company’s side. It borrowed at 9%. Two years later, similar borrowers are paying 7%. If the bond is callable, the company can repay the 9% holders, raise fresh money at the lower rate and cut its interest bill. If the bond isn’t callable, it’s stuck paying 9% until maturity.

Investors aren’t fools about this, so issuers usually pay for the privilege. Callable bonds tend to carry a higher coupon than comparable non-callable ones, and the call is often set slightly above face value. Investopedia gives the example of a call price of 102, which means the investor gets 1,020 for every 1,000 of face value, with the premium sometimes stepping down as the bond ages.

India has its own history here. The RBI’s FAQ on government securities notes that G-Secs can be issued with call or put options, or both. The first G-Sec with both, the 6.72% GS 2012, was issued on July 18, 2002 with a 10-year maturity. After five years, the government could buy it back at par (the call) and investors could sell it back at par (the put) on any half-yearly coupon date from July 18, 2007. You’ll find call features far more often today in corporate bonds and NCDs, so it pays to read the offer document’s call clause before you buy.

A call option belongs to the issuer, not to you. It gets used when it suits the borrower, which is almost always when it hurts the lender a little.

Yield to call vs yield to maturity

Yield to maturity assumes you hold the bond to its final maturity date and every coupon arrives as scheduled. We’ve covered the mechanics in our guide to yield to maturity. Yield to call runs the same maths, but stops the clock at the call date and swaps the face value for the call price.

So the two numbers differ in just two inputs:

• Time: YTM counts coupons to maturity; YTC counts them only to the call date.
• Final payment: YTM uses the face value repaid at maturity; YTC uses the call price, which may be at or a little above face value.

Investopedia notes that the remaining years to maturity don’t enter the YTC calculation at all. Only the time to the call date matters.

The yield to call formula

For a bond paying coupons twice a year, the standard formula (as laid out by Investopedia) is:

P = (C / 2) × [1 − (1 + YTC/2)−2t] / (YTC/2) + CP / (1 + YTC/2)2t

Where:

• P is the bond’s current market price
• C is the annual coupon payment
• CP is the call price
• t is the number of years until the call date
• YTC is the yield to call, the number you’re solving for

The catch: you can’t rearrange this to get YTC directly. You solve it by trial and error, or let a spreadsheet or financial calculator do the iterations for you. Investopedia’s own example checks out when you run it: a bond with a face value of 1,000, a 10% coupon paid semi-annually, a price of 1,175 and a call at 1,100 in five years works out to a yield to call of about 7.43%.

Worked example 1: a bond trading above par

Here’s where yield to call earns its keep. Take an illustrative corporate bond:

• Face value: ₹1,000
• Coupon: 9% a year, paid half-yearly (₹45 every six months)
• Maturity: 10 years away
• Callable in 3 years at ₹1,010
• Current market price: ₹1,060

Rates have fallen since this bond was issued, which is why it trades above face value. Run the numbers:

• Yield to maturity: about 8.11%
• Yield to call: about 7.05%

That’s a gap of more than one percentage point. Why? You pay ₹1,060 today. If the bond runs to maturity, you have 20 coupons to spread that ₹60 premium across, and you get back ₹1,000. If it’s called in three years, you collect only six coupons and get back ₹1,010, so most of the premium you paid gets eaten up in a much shorter window.

And notice which scenario is more likely. The bond trades above par precisely because market rates are below its 9% coupon. That’s exactly the condition under which the issuer wants to call it. So the lower number, 7.05%, is the one a careful buyer should plan around.

When a callable bond trades at a premium, the higher yield on the screen is usually the one least likely to happen.

Worked example 2: the same bond trading below par

Now flip it. Suppose rates have risen and the same bond trades at ₹960.

• Yield to maturity: about 9.63%
• Yield to call: about 10.89%

Here YTC is higher, because an early call would hand you ₹1,010 for a bond you bought at ₹960, and you’d pocket that gain sooner. Lovely on paper. The trouble is that it’s unlikely. With market rates above the 9% coupon, the issuer has no reason to repay cheap money early. So for a discount bond, YTM is the more realistic guide and the juicy YTC is mostly a mirage.

Put the two examples side by side and a simple rule emerges. A sensible investor looks at both yields and plans around the lower one. That lower figure is what Investopedia describes as the yield to worst: the lowest return you can expect if the bond is called or redeemed early, and the conservative way to read any callable bond.

Reinvestment risk: the cost that doesn’t show up in the yield

Even yield to call understates what you lose when a bond is called. The real damage is what happens to your money afterwards.

Investopedia illustrates this with a 6% bond due in five years that gets called after three when rates fall to 4%. The holder loses the remaining coupons and is unlikely to find another bond paying the original 6%. That is reinvestment risk.

Back to our first example. If the bond is called after three years, you get ₹1,010 back. Say the best comparable bond you can now find pays 7% a year. On ₹1,010, that’s about ₹70.70 a year, against the ₹90 a year the original bond would have paid on its face value. Over the seven years that bond had left to run, that’s roughly ₹495 of income instead of ₹630. The illustrative rate is ours, but the shape of the problem is real: calls happen when rates are low, which is the worst time to be looking for somewhere new to park money.

Where Indian investors run into callable bonds

You’ll meet call features most often in:

• Corporate bonds and NCDs: the offer document spells out any call option, the call dates and the call price. Read that section before you look at the yield.
• Debt mutual funds: if you own a fund rather than individual bonds, the fund manager deals with call risk for you, but it still shapes returns. Our pieces on the dynamic bond fund and the gilt fund explain how rate moves flow through to NAVs.

How to use yield to call before you buy

A short checklist we’d run on any callable bond:

1. Find the call schedule. First call date, any later call dates, and the call price at each one.
2. Check the price against the call price. If you’re paying above the call price, an early call locks in a loss on that premium.
3. Calculate both YTM and YTC. A spreadsheet can solve it in seconds: treat the call date as the maturity and the call price as the redemption value.
4. Plan around the lower number. That’s your yield to worst.
5. Ask what you’d do with the cash. If the bond is called, where would the money go and at what rate? That answer is your real reinvestment risk.
6. Size the position sensibly. Don’t let one issuer’s call decision upset your income plans. The same discipline we discuss in risk management in trading applies to fixed income too.

The short version

Yield to call answers a narrow but important question: what do I earn if the issuer takes the bond back at the first chance it gets? For bonds trading above par in a falling-rate world, that’s the likeliest outcome, so YTC is the number to trust. For bonds trading below par, the call is less likely and YTM is usually the better guide. Look at both, plan on the lower one, and never let a high coupon distract you from the clause that lets the borrower walk away early.

Disclaimer: This article is for information and education only and is not investment advice. The bond prices, coupons and rates in the worked examples are illustrative and do not refer to any real security. Bonds carry interest rate, credit and reinvestment risk. Please consult a SEBI-registered adviser before making investment decisions.