Which sectors are considered defensive?

Consumer staples, utilities and health care are the usual three. Their customers keep buying groceries, electricity and medicine when the economy slows, so revenue tends to hold steadier than in sectors such as autos, travel or construction, where purchases can be put off.

Can defensive stocks lose money in a bear market?

Yes. A low beta means a stock has tended to fall less than the market, and it still falls. Defensive sectors can also drop for their own reasons, such as utilities sliding when interest rates rise, since their steady dividends look less attractive next to higher bond yields.

Defensive Stocks: Why Some Sectors Hold Up in a Slowdown

Open a stock screener. Set the sector filter to utilities, add a filter for beta under 0.8, and sort by market value, and the list that comes back is close to what most people mean when they talk about defensive stocks. The screen took ten seconds. Understanding what it found takes longer.

The idea starts with demand. A new car can wait for better times. Toothpaste can’t. People still buy it, pay the electricity bill and fill prescriptions in a recession, so companies selling those things tend to see revenue hold up when the economy slows, and their shares tend to be less sensitive to the swings of the wider market. Consumer staples, utilities and health care are where screeners usually find them.

Beta, the number on the screen

Beta is how a screener puts a figure on that sensitivity. A beta of 1.0 means in line with the market. Below 1.0, it has moved less. Above 1.0, more.

Those are averages drawn from past behavior. In any single fall the low-beta stock can drop more than 6%, or less, or even rise, since beta describes a tendency across many periods and says nothing certain about the next one.

Filtering for them

Most screeners let you combine a sector filter with a beta range. Sector alone is blunt. A health care screen will include small biotech companies whose shares swing on trial results. Beta alone can pull in thinly traded names. Using the two together gives a shorter, more sensible list.

The beta period changes the answer. A figure calculated over a calm few years can make a stock look sleepier than it will be in a rough one, and a stock that has just been through a takeover rumor or a big earnings gap can carry a beta inflated by one event. Look at the chart behind the number.

Defensive and safe are different claims

A defensive stock still falls in a bear market. It usually falls less, and the label describes that relative behavior and nothing more.

Interest rates are one trap. Utilities in particular carry heavy debt and are often held for their dividends, which makes them sensitive to rates: when yields on bonds rise, a steady dividend looks less attractive by comparison, and utility shares can fall even while the economy is fine and their customers are paying every bill on time. A portfolio loaded with defensives can therefore drop sharply in a period of rising rates, which is the opposite of what the owner expected when they bought.

Valuation is another. When everyone wants shelter at once, defensive shares get bid up, and a stock that has held steady at a high multiple has less room to cushion the next decline.

Where they fit

Defensive stocks suit a particular market regime. That usually means late in an expansion, or when growth is slowing.

The cushion works both ways. If the market rises 20%, the same beta of 0.6 points to a gain of about 12%, so a portfolio held in defensives through a strong year can trail by around 8 points, and that gap is the price of the protection you were paying for while nothing went wrong. Size the tilt with both numbers in view.

The course boom, bust, repeat follows how sectors take turns through the cycle, and its lesson on credit spreads and sector returns adds the bond market’s side of the picture. Test a defensive tilt against surprise shocks in build it, then break it. More on reading the economy sits under economics.