The key when it comes to bond yields and interest rates is that the cash isn’t stuffed in a mattress. It is put to work. And that means changes in market conditions will affect insurance companies. Sometimes in material ways.
What happens when bond yields rise?
For a company Progressive, which has invested about 95% of its roughly $97 billion investment portfolio in bonds, rising yields can be a bit of a problem. Bond prices move in the opposite direction to yields. That happens so that existing bonds offer a yield commensurate with the current yield investors demand in the market. So, the book value of a bond-heavy insurer can decline as the value of its bond portfolio falls.
But rising bond yields aren’t all negative. New premiums Progressive collects can be invested in higher-yielding bonds, increasing the income the company generates from its portfolio. So rising yields are both good and bad.
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NYSE: PGR
Progressive
Premium Feature
Moneyball Superscore
85/100
Today’s Change
(-1.30%) $-2.81
Current Price
$213.48
Key Data Points
Market Cap
$124BMarket cap calculated using publicly traded s outstanding only. Does not include unlisted, private, or dual-class non-traded s. Implied market cap may vary.
Day’s Range
$212.38 – $215.14
52wk Range
$189.20 – $248.17
Volume
6.1M
Avg Vol
2.8M
Dividend Yield
6.51%
But there’s another complication: When the Fed increases interest rates, as it just did, it usually has economic implications. In the current instance, inflation is running hot, and the Fed is attempting to cool things off. If inflation is pushing up an insurance company’s costs, it could be facing profitability headwinds. Notably, Progressive’s combined ratio, a measure of profitability for insurance companies, worsened by 1.1 percentage points year over year in the second quarter of 2026. In the month of June, the change was 3.4 percentage points in the wrong direction. The company is still highly profitable, but market conditions appear to be changing.
What about the stocks Berkshire Hathaway owns?
With only about 5% of its portfolio in equities, Progressive is more exposed to bond prices. However, as noted, other insurers have significant equity exposure. Rising interest rates and bond yields can be a headwind for companies Berkshire Hathaway, as investors may shift assets from equities to bonds to collect higher yields from investments perceived as safer than stocks. That can lead to weak stock prices. Another example of a stock-heavy insurance company is Cincinnati Financial (CINF -0.53%), which has around 40% of its portfolio invested in equities.
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NYSE: BRKB
Berkshire Hathaway
Today’s Change
(0.11%) $0.57
Current Price
$509.77
Key Data Points
Market Cap
$1.1TMarket cap calculated using publicly traded s outstanding only. Does not include unlisted, private, or dual-class non-traded s. Implied market cap may vary.
Day’s Range
$506.13 – $512.07
52wk Range
$464.01 – $537.74
Volume
12.5M
Avg Vol
4.5M
Gross Margin
23.52%
Meanwhile, there is always the risk that the Fed’s efforts to battle inflation lead to an economic slowdown. Bear markets often accompany recessions, which can lead to a swift decline in the value of an equity-heavy insurance portfolio, again reducing the insurance company’s book value. Of course, stock sell-offs often cause stocks to fall, including insurance companies’ stocks.
Berkshire Hathaway faces an added complication from rising costs, since it also owns entire companies. There are a lot of moving parts to consider with this complicated insurance company, including the fact that it held roughly $365 billion in cash at the end of the second quarter, which should act as a ballast during a turbulent market. And that cash would allow Berkshire Hathaway to buy stocks during a deep market decline, should one occur.
The real answer: Be prepared for volatility
There’s no single answer to what happens to insurance companies when bond yields rise. It is, as most things on Wall Street, complicated. Some insurance companies will be more exposed to fluctuating bond yields than others, while others will be more affected by stock price volatility. The prices of all insurance companies, meanwhile, will be impacted by bull and bear markets. And insurance companies of all types have to deal with rising costs, just every other company in the world. With today’s changing market dynamics, the one thing you should most expect is increased uncertainty.
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About the Author
Reuben Gregg Brewer is a contributing Motley Fool stock market analyst covering energy, utilities, REITs, and consumer staples. He is the former director of research at Value Line Publishing, where he rose from mutual fund analyst to equity analyst before leading all research operations. Reuben holds a bachelor’s degree in psychology from SUNY Purchase, a master’s in social work from Columbia University, and an MBA from Regis University. He has been featured as a financial expert on CNBC and in the Financial Times, Barron’s, and InvestmentNews.
Stocks Mentioned
Berkshire Hathaway
NYSE: BRKB
$509.77
(+0.11%)+$0.57
Motley Fool Stock Advisor’s Latest Pick
—% Avg Return
Berkshire Hathaway
NYSE: BRKA
$763,600.01
(-0.04%)-$335.94
Progressive
NYSE: PGR
$213.48
(-1.30%)-$2.81
Cincinnati Financial
NASDAQ: CINF
$169.00
(-0.53%)-$0.90
*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.
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