Bond Buyer Indexes and Market Indicators

Now that you can analyze, price, and calculate yields on municipal bonds, let's look at the market-level indicators that track the overall muni market. The Bond Buyer publishes several indexes and supply/demand metrics that appear frequently on the exam.


The Three Bond Buyer Indexes

IndexCompositionQuoted As
11-Bond GO Index11 select bonds from the 20-Bond Index; average rating ~Aa1/AA+Yield
20-Bond GO Index20 general obligation (GO) bonds with 20-year maturitiesYield
Municipal Bond Index (40-Bond)40 long-term municipal bonds (mix of GO and revenue)Price

Key relationships:

  • The 11-Bond Index is a subset of the 20-Bond Index, consisting of the highest-quality bonds
  • Because the 11-Bond Index contains higher-quality bonds, its yield is lower than the 20-Bond Index (lower risk = lower yield)
  • The 20-Bond and 11-Bond indexes are expressed as yields
  • The 40-Bond (Municipal Bond Index) is the only one expressed as a dollar price
  • All three are published weekly by The Bond Buyer

Exam Tip: Gotchas

  • The 40-Bond Index is quoted as a PRICE; the 11-Bond and 20-Bond are quoted as YIELDS. The exam may test which index is price-based vs. yield-based.
  • The 11-Bond Index has LOWER yields than the 20-Bond. Higher quality = lower yield. The 11-Bond is a subset of the highest-quality bonds from the 20-Bond Index.

Visible Supply

The 30-day visible supply tracks the total dollar volume of new municipal bond issues (with maturities of 13 months or more) expected to reach the market in the next 30 days.

  • Published daily by The Bond Buyer
  • A rising visible supply → more bonds coming to market → potential downward pressure on prices (upward on yields)
  • A falling visible supply → fewer new issues → potential upward pressure on prices (downward on yields)

Think of it this way: More supply with the same demand pushes prices down.

Exam Tip: Gotchas

  • Visible supply is published DAILY (not weekly like the indexes and placement ratio).
  • Rising visible supply is BEARISH for bond prices. More bonds hitting the market = downward price pressure.

Placement Ratio (Acceptance Ratio)

The placement ratio measures how successfully new muni issues are being absorbed by investors.

Formula: Placement ratio = dollar amount of new bonds sold / dollar amount of new bonds offered

  • Published weekly by The Bond Buyer
RatioMarket Signal
Above 90%Strong demand, favorable market conditions
80-90%Neutral conditions, some price concessions needed
Below 70%Weak demand, unfavorable pricing

Think of it this way: The placement ratio shows how hungry investors are for new muni bonds. Above 90% means buyers are snapping them up; below 70% means deals are going unsold.


How These Indicators Work Together

  • Visible supply: High = bearish (more supply, lower prices); Low = bullish (less supply, higher prices)
  • Placement ratio: High = bullish (strong demand); Low = bearish (weak demand)

The two indicators often move together as a market signal:

  • A high visible supply combined with a low placement ratio signals a tough market for new issuers
  • A low visible supply combined with a high placement ratio signals strong market conditions

Exam Tip: Gotchas

  • High visible supply + low placement ratio = bearish. Lots of new bonds and few buyers is the worst combination for issuers.
  • Visible supply and placement ratio move in opposite directions in terms of market sentiment. High visible supply is bearish, but a high placement ratio is bullish.