What is Systematic Risk in Markets? 

Not putting all your eggs in one basket is about the oldest advice in investing. It's also good advice. Spreading capital across companies and sectors means no single failure can take your portfolio with it.

But there's a limit to what it buys you. Some forces out there can move every basket at once. Think about a rate decision, an inflation surprise, or a war.

That's systematic risk. When one of those lands, the number of holdings you own stops mattering, which is why it's also much harder to protect against.

What Is Systematic Risk?

Systematic risk comes from broad forces that no single company or investor can control.

It affects every asset class, which is why diversification alone won't remove it, and it's hard to see coming. What you can do is manage how much of it your portfolio carries.

Systematic Risk vs Unsystematic Risk

Systematic risk sits alongside unsystematic risk, which is tied to a specific company or industry. It comes from things like weak earnings, a management scandal or a bankruptcy.

This split is important because it decides what diversification can do for you. Spreading capital across assets and sectors washes out unsystematic risk.

But it does nothing to combat systematic risk, because the same economic shock reaches many holdings at once.

How Can One Shock Affect Multiple Markets?

Systematic risk reaches across financial markets, though it doesn't hit every asset class the same way.

The 2022 tightening cycle shows how. As the Federal Reserve pushed rates from near zero to above 4% within a year, the 10-year Treasury yield surged and bond prices fell sharply.

Rate-sensitive growth stocks took the hit next, with the Nasdaq Composite down roughly a third for the year. At the same time, higher US yields and safe-haven demand pushed the dollar to a two-decade high.

Bonds, stocks and currencies all moved differently, but one policy shock drove all three.

That year also broke a familiar pattern. When equities sell off on growth fears, high-quality government bonds usually attract money looking for safety.

In 2022 they didn't. Rising rates pushed bond prices down and pressured stock valuations at the same time, so the usual shelter offered none.

What an asset does in one crisis depends on what caused it, and no asset class sits fully outside the reach of a systematic shock.

What Can Cause Systematic Risk?

Systematic risk comes from several directions, and each one moves markets differently.

• Market Risk  

Market risk is broad movement in asset prices driven by recessions, conflicts, political crises and shifts in investor sentiment. It's the widest of the categories here, and the one that captures shocks the others don't.

• Interest Rate Risk 

Interest rate risk is the effect of rate changes on the value of financial assets. As 2022 showed, long-term bonds and growth stocks feel it most, while currencies respond to shifting yield differentials.

Falling rates can work the other way, supporting bond and stock prices while weighing on the currency. The size of the move depends on how much was already priced in and whether the central bank is cutting into a healthy economy or into a slowdown.

• Inflation Risk  

Inflation risk is the erosion of purchasing power and the real value of returns. Fixed-income assets are the most exposed, since inflation eats into payments that are fixed in advance.

Stocks can come under pressure too, if higher costs squeeze profits and weaker spending hits revenue. Inflation often weakens the currency, though a central bank that hikes hard to defend it can offset that.

• Exchange Rate Risk  

Exchange rate risk arises when currency moves change the value or returns of international investments. Multinationals carry it as well, whenever revenues, costs, assets or liabilities are denominated in a foreign currency.

How Is a Stock’s Systematic Risk Measured?

For stocks, beta (β) estimates how sensitive a share is to moves in a chosen benchmark, usually a broad index like the S&P 500. The index itself has a beta of 1, and every stock is measured against it.

• Beta below 0: The stock has historically tended to move in the opposite direction to the market, suggesting negative market sensitivity.
• Beta of 0: The stock shows no consistent relationship with the market.
• Beta between 0 and 1: The stock tends to move in the same direction as the market, but by a smaller amount, suggesting lower systematic risk.
• Beta of 1: The stock has historically shown similar sensitivity to the market and carries roughly the same level of market-related systematic risk as the benchmark.
• Beta above 1: The stock tends to move more sharply than the market, indicating greater sensitivity to systematic risk.

Beta is based on historical price movements and does not capture every source of systematic risk. However, it can provide a useful indication of how strongly a stock may respond to wider market movements.

In the example above, Goldman Sachs share price had a beta of 1.45 over the period studied. This means that, historically, a 1% move in the S&P 500 was associated with an estimated 1.45% move in Goldman Sachs shares in the same direction, on average.

A beta above 1 shows greater sensitivity to the market, although past movements do not guarantee future results.

Each dot represents one trading day. Dots close to the trendline show days when Goldman Sachs moved roughly as its beta predicted, while dots farther away show larger differences that may reflect company-specific, sector-related or other factors.

At the portfolio level, investors might also use scenario analysis and stress testing to estimate how their holdings could respond to events such as a recession, an inflation shock, or a sharp change in interest rates.

How to Reduce Systematic Risk Exposure 

You can't remove systematic risk, but you can decide how much of it your portfolio carries.

Spreading capital across asset classes, geographies and currencies reduces how much a single source of risk can hurt you. It won't eliminate the exposure, since a broad enough shock reaches everything, but it stops one shock from deciding your whole outcome.

Derivatives like options and futures can offer a more direct route through their hedging capabilities.

• Options: Financial contracts that give traders the right, but not the obligation, to buy or sell an asset at a predetermined price on or before a specified expiry date. Certain options can act as insurance by limiting losses from adverse market movements.
• Futures: Standardized derivative contracts that obligate the parties to buy, sell or settle an underlying exposure at a predetermined price on a future date. The underlying exposure may be a stock index, currency, commodity or an interest-rate product.  They can be used for hedging by taking an offsetting position that may gain value if the original market exposure loses value.

Beyond hedging, staying current on what creates these shocks is important. That means following rate decisions, inflation prints, geopolitical developments and government policy.

Volatility tends to run above normal through these periods, which is exactly when position sizing, leverage and predefined loss limits do the most work.

Conclusion 

Systematic risk can't be diversified away. A broad enough shock reaches every asset class, and 2022 showed that even the usual shelters can fall with everything else.

What's left in your control is exposure. Knowing which shocks your positions are most sensitive to, sizing accordingly and deciding in advance how much of a move you're willing to sit through. The shock isn't yours to prevent, but how much of it lands on your portfolio is.