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AFB vs TIP: Correlation

How closely do AllianceBernstein National Municipal Income Fund Inc (AFB) and iShares TIPS Bond ETF (TIP) trade together? Their weekly returns over three years give a correlation of 0.66, which is strong.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.66
strong
Correlation (1Y)
0.54
last 12 months
Correlation (5Y)
0.48
long-run
Ann. covariance
36.1
%² · weekly, annualized

How correlated are AFB and TIP?

Over the past 3 years, AFB and TIP moved with a correlation of 0.66, which is strong. Lately the two have drifted apart, with the 1-year correlation at 0.54 versus 0.66 over 3 years. Over 5 years the correlation is 0.48, and the annualized covariance of weekly returns is 36.1 %².

Among the 24 assets we track against AFB, TIP ranks #16 by 3-year correlation. Over the last 12 months AFB came out ahead by 9.1 percentage points (+10.5% against +1.4%). Risk is not evenly split, since AFB carries 2.9 times the volatility of the other side.

How is this computed?

Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.

AFB vs TIP: side by side

AFB (AllianceBernstein National Municipal Income Fund Inc)TIP (iShares TIPS Bond ETF)
1-year return+10.5%+1.4%
5-year return-9.9%+1.2%
Volatility (ann.)12.6%4.4%
Beta vs S&P 5000.260.05
Max drawdown (3Y)-15.1%-3.7%
Market cap
P/E (trailing)13.6
Dividend yield4.97%4.47%
Expense ratio0.18%
Assets under management$14.6B
Sector / categoryUS ListedETF · Bonds
Higher yield: AFB 4.97% vs 4.47%Smaller drawdown: TIP -3.7% vs -15.1%Higher 5y return: TIP +1.2% vs -9.9%

TIP is an Inflation-Protected Bond fund from iShares: $14.6B under management, a 0.18% expense ratio, a 4.47% trailing dividend yield.

-0%0%+14%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. AFB · TIP

Year-by-year returns

YearAFBTIP
2022-25.9%-12.3%
2023+7.5%+3.8%
2024+4.1%+1.7%
2025+4.4%+6.8%
2026+4.6%+1.1%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are AFB and TIP good diversifiers for each other?

To a limited degree. At 0.66 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

FAQ

What is the correlation between AFB and TIP?

Using weekly returns as of 2026-08-27: 0.66 over 3 years, with 0.54 over the last year and 0.48 over 5 years.

Is TIP a good diversifier for AFB?

To a limited degree. At 0.66 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

What does a correlation of 0.66 mean?

On the −1 to +1 scale, 0.66 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.

Use this data

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/afb-vs-tip.json

AFB vs TIP: 3-year weekly correlation 0.66AFB vs TIP0.66

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Related comparisons

Hubs: AFB correlations · TIP correlations