Markets & deals

IG vs HY Bond Issuance: How DCM Deals Actually Work (and How to Explain It in Interviews)

7 min read

If you're interviewing for a Debt Capital Markets or Leveraged Finance seat, expect this question in some form: "What's the difference between an investment grade and a high yield bond deal?"

The short answer: IG deals are fast, cheap, light on covenants and priced as a spread over Treasuries. HY deals are slower, more expensive, heavy on covenants and priced on yield, usually after a roadshow.

That answer gets you through the door. The rest of this post gives you the detail that makes you sound like you've actually worked on a deal.

First, What Separates IG From HY?

It comes down to credit ratings. The line sits between BBB- and BB+.

  • Investment grade (IG): BBB- or higher at S&P and Fitch, Baa3 or higher at Moody's
  • High yield (HY): BB+ or lower at S&P and Fitch, Ba1 or lower at Moody's

Companies right around that line are often called "crossover" credits. Two other terms worth knowing:

  • Fallen angel: an IG company downgraded to HY
  • Rising star: an HY company upgraded to IG

Why the Line Matters So Much

Many large investors, like insurance companies and certain pension funds, face rules or mandates that limit how much sub-IG debt they can hold. So crossing below BBB- shrinks the buyer base overnight.

That's why the same company can see its funding costs and deal process change dramatically with a one-notch downgrade.

Who Actually Runs These Deals?

This trips people up. At many banks:

  • IG bonds sit with the DCM team
  • HY bonds sit with Leveraged Finance, often alongside leveraged loans

Some banks organize things differently, so check how the bank you're interviewing with is set up. Mentioning this shows you've done your homework.

How an IG Deal Works

IG issuance is all about speed and efficiency. Large, frequent issuers can often launch and price a deal in a single day.

The Typical Day of an IG Deal

  1. Morning announcement: the syndicate desk announces the deal and releases initial price talk (IPT), quoted as a spread over Treasuries, like "T+130 area"
  2. Book building: investors submit orders over a few hours
  3. Guidance: if demand is strong, the spread is tightened, say to "T+110 to 115"
  4. Launch: the final spread and deal size are set
  5. Pricing: usually that afternoon, with the coupon set off the Treasury yield at that moment

Many frequent US IG issuers can move this fast because they use a shelf registration, meaning the SEC paperwork is largely done ahead of time.

Worked Example: A $1 Billion 10-Year IG Deal

Say a BBB+ industrial company wants to raise $1 billion of 10-year notes.

  • 10-year Treasury yield: 4.20%
  • IPT: T+130 area
  • Order book peaks at $4 billion (4x oversubscribed)
  • Guidance tightened to T+110 to 115
  • Final pricing: T+105

The math: 4.20% + 1.05% = 5.25% yield. The coupon is typically set at or just under that yield, with the bond priced at or slightly below par.

Notice what happened. Strong demand let the bankers tighten 25 bps from IPT, saving the issuer real money.

The New Issue Concession

Here's a detail interviewers love. Suppose the company's existing bonds imply a fair 10-year spread of T+95. The new bond priced at T+105.

That 10 bp gap is the new issue concession: the small discount offered to entice investors into a fresh deal. Your job as a banker is to keep that concession as small as possible.

On $1 billion, every 1 bp is $100,000 of annual interest. So the 25 bps of tightening in the example above saves the issuer about $2.5 million per year, or roughly $25 million over 10 years.

IG Covenants: Light Touch

IG bonds usually carry minimal covenants, typically things like:

  • Negative pledge: limits on granting liens to other lenders
  • Limits on sale-leaseback transactions
  • Merger covenant: rules for what happens if the company merges or sells substantially all its assets

There's usually no limit on how much debt the company can take on. Investors are relying on the company's credit quality, not on contractual protections.

IG Call Features

IG bonds are generally callable any time via a make-whole call, priced off Treasuries plus a small spread (like T+20). That makes calling the bond expensive, so it's rarely a cheap refinancing option.

Many also have a par call in the final few months before maturity.

How an HY Deal Works

HY is a different world. The company is riskier, so investors want more information, more protection and more yield.

The Typical HY Process

  1. Offering memorandum (OM): a detailed disclosure document, since HY deals are usually sold under Rule 144A to qualified institutional buyers (and Reg S offshore), not off an SEC shelf
  2. Roadshow: management pitches investors, often over a few days, sometimes virtually
  3. Price talk: quoted as a yield, like "8.00% area"
  4. Pricing: at the end of the roadshow, often at par with the coupon equal to the yield

The whole thing usually takes days, not hours. Shorter "drive-by" HY deals happen for well-known issuers, but the roadshow is the classic model.

Worked Example: A $500 Million 8NC3 HY Deal

A B-rated company backed by a private equity sponsor issues $500 million of 8-year senior notes, non-callable for 3 years (an "8NC3").

  • IPT: 8.00% area
  • Strong roadshow, book builds well
  • Final pricing: 7.75% coupon at par

So the issuer pays $38.75 million per year in interest.

HY Call Protection: Where the Real Detail Lives

Unlike IG make-wholes, HY bonds have a non-call period followed by a step-down call schedule. A common structure starts at par plus half the coupon:

PeriodCall Price
Years 1 to 3Non-callable (make-whole only)
Year 4103.875 (par + half the 7.75% coupon)
Year 5101.938
Year 6 onward100.000

This matters because HY issuers frequently refinance once the call price drops, especially if their credit improves.

Two more features worth knowing:

  • Equity claw: the issuer can redeem a portion of the bonds (often up to 35% or 40%) with proceeds from an equity offering, typically at par plus the coupon (here, 107.75), usually within the first few years
  • Change of control put: if the company is acquired, investors can usually require it to buy back the bonds at 101

HY Covenants: Real Teeth

HY bonds carry incurrence covenants. These kick in only when the company takes an action, such as issuing more debt or paying a dividend. Common ones:

  • Limitation on indebtedness: usually tied to a leverage or fixed charge coverage test
  • Restricted payments: limits on dividends, buybacks and certain investments
  • Limitation on liens
  • Asset sales: rules on what to do with sale proceeds
  • Transactions with affiliates

Many HY indentures include covenant suspension: if the company gets upgraded to IG, most of these covenants fall away.

IG vs HY at a Glance

Investment GradeHigh Yield
RatingsBBB-/Baa3 and aboveBB+/Ba1 and below
Pricing quoted asSpread over TreasuriesYield / coupon
Execution speedOften same dayUsually days, with roadshow
Typical format (US)SEC-registered, often off a shelfRule 144A / Reg S
CovenantsLightExtensive incurrence covenants
Call structureMake-whole, par call near maturityNon-call period, step-down schedule
Typical tenorsWide range, out to 30 years or moreCommonly 5 to 10 years
Underwriting feesLowerMeaningfully higher
Who usually covers itDCMLeveraged Finance

Interview Questions You Should Be Ready For

"Why are HY fees higher than IG fees?"

More work and more risk. HY deals need a full OM, a roadshow, heavier covenant negotiation and more effort to sell. The bank also takes on more risk if the market moves before pricing.

"Why would a company issue HY bonds instead of a term loan?"

Good answer points:

  • Fixed rate: locks in cost, versus floating-rate loans priced off SOFR
  • Longer tenor and no amortization in most cases
  • Incurrence covenants instead of the maintenance covenants found in some bank loans

The tradeoff: bonds are harder to prepay because of call protection, while loans can usually be repaid more flexibly.

"What happens to a bond's yield when it gets downgraded from IG to HY?"

Its yield typically rises (and price falls). Part of that is the higher credit risk, and part is forced or mandate-driven selling by investors who can't hold sub-IG debt.

"Walk me through how an IG deal gets priced."

Use the IPT, guidance, launch, pricing sequence above, and mention the new issue concession. That one detail separates prepared candidates from everyone else.

The Bottom Line

Think of it this way: IG issuance is a high-volume, low-friction market where pricing is about basis points. HY issuance is a negotiation where structure, covenants and the equity story matter as much as the coupon.

If you can explain that difference, walk through one example of each and drop terms like new issue concession, 8NC3 and change of control at 101, you'll handle this question better than most candidates in the room.

Practice

Now say it out loud.

Work through real interview questions with model answers, get every answer graded, and sit mock interviews with a banker.

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