Synthesis
Quick Answer
Work fixed income exam questions in order: find the price relationship (premium, discount, or par), pick the right yield (YTC for a premium callable bond likely to be called, YTM for discount), assess risk (duration, credit rating, spread, call features, maturity), then factor in special features like convertibility or a zero coupon.
This four-step sequence prevents the most common exam error: picking a yield or risk answer before establishing whether the bond trades at a premium or discount in the first place.
Step 1: Determine Price Relationship
If You Know Yield to Maturity (YTM) > Coupon, Then Bond is at discount
If You Know YTM < Coupon, Then Bond is at premium
If You Know YTM = Coupon, Then Bond is at par
If You Know Current Yield (CY) > Coupon, Then Bond is at discount
If You Know CY < Coupon, Then Bond is at premium
Step 2: Apply the Appropriate Yield
Discount: Focus On YTM (issuer will not call)
Premium, callable, likely to be called: Focus On Yield to Call (YTC), since it trades above the call price
Premium, not callable (or not likely to be called): Focus On YTM; there is no YTC on a noncallable bond
Par: Focus On Nominal yield, current yield, and YTM are equal; calculate YTC separately if callable
Step 3: Assess Risk Profile
Duration: Key Question How sensitive is this bond to rate changes?
Credit rating: Key Question How likely is default?
Credit spread: Key Question How much extra yield for the credit risk?
Call features: Key Question Could reinvestment risk materialize?
Maturity: Key Question How long is the investor exposed?
Step 4: Consider Special Features
Callable: Key Consideration Reinvestment risk; YTC most relevant for a premium bond likely to be called; use effective duration
Puttable: Key Consideration Benefits bondholder when rates rise; lower coupon than comparable bonds
Convertible: Key Consideration Use par value for conversion ratio; trades at greater of bond value or conversion value
Zero-coupon: Key Consideration No reinvestment risk but highest volatility; phantom income tax; best for tax-deferred accounts
The Master Yield Ranking
Discount: Nominal < CY < YTM < YTC
Premium: Nominal > CY > YTM > YTC
Par: Nominal = CY = YTM
Key Formulas
Current Yield = Annual Interest divided by Market Price
Taxable Equivalent Yield (TEY) = Tax-exempt Yield divided by (1 - Marginal Tax Rate)
Conversion Ratio = Par Value divided by Conversion Price
Conversion Value = Conversion Ratio x Stock Price
Credit Spread = Corporate Bond Yield - Treasury Yield
Price Change approximately = -Duration x Change in Yield
Exam Tip: Gotchas
Yield to Worst (YTW) is always the LOWEST possible yield: the most conservative measure. It is the lesser of YTM, YTC, or any yield to a put date.
Discounted Cash Flow (DCF) value > market price means undervalued (buy). DCF value < market price means overvalued (sell).
What Should You Check on Exam Day?
Work the four steps in order: price relationship, then yield, then risk, then special features. Do not jump straight to a yield answer.
Confirm the yield ranking direction matches the price relationship you found in Step 1: discount climbs, premium dips.
Double-check that a callable or puttable feature does not change which yield or which duration measure applies.