Markets haven’t read the manual

10 facts that tend to run counter to an investor’s intuition

[Management Team] [Author] Thozet Kevin
Author(s)
Published on
August 12, 2026
Read time
1 minute(s) read

To better understand the long-term performance of financial markets, let’s first look at fundamental drivers. The performance of equities is primarily influenced by earnings growth, and that of bonds is mainly driven by its yield to maturity. Bearing that in mind, looking back at market performance over the past decades, one can draw some lessons that might appear counterintuitive.

The performance of the main asset classes is broadly shaped by the following factors:

Equities are mainly driven by earnings growth, and to a lesser extent dividend payouts. Over the long term, earnings tend to move in line with nominal GDP growth (i.e. real GDP growth plus inflation). Evolution of valuation multiples can also be a strong factor, but their appreciation is a delicate exercise and valuations do tend to revert to the mean over the long term.

The prices of bonds tend to be largely driven by the yield to maturity at purchase (provided fundamentals remain relatively stable). As a bond approaches its maturity date, its price tends to converge towards its par value, or the amount of money that the issuer has to repay. The yield of a given bond is mainly made up of three components: the money-market rate, as set by central banks to reward economic agents for merely delaying their spending; the term premium, which rewards investors for the uncertainty (notably inflation-related uncertainty over time) associated with the length of time their money will be held in the investment; and a credit-risk premium, which rewards investors for the risk that the issuer may not be able to fully service its debt.

When it comes to making investment decisions, our instinct may set us on the wrong track – especially over the short term. One may be tempted to wait for the perfect time, to perceive volatility as the main source of risk, or to think that cash is always a safer bet. But take a closer look at the long-term data, and a very different story emerges.

Source: Carmignac, Bloomberg, NYU Stern, June 2026.

Over the past 100 years, there have been more years in which stock markets gained 20% or more than those in which equity markets posted a loss.

Source: Carmignac, Bloomberg, NYU Stern, June 2026.

Consistency matters more than we think. Even an investor unlucky enough to invest in the worst-performing asset class (across equities, sovereign bonds and corporate bonds) at the worst possible time every year would still have generated a positive return over time by investing consistently since the end of World War II.

Source: Carmignac, Bloomberg, June 2026, IRR of a EUR 1 investment made only at market highs (63 times over 10 years, 96 times over 20 years, 122 times over 30 years, and 163 times over 40 years) and market lows (23 times over 10 years, 47 times over 20 years, 75 times over 30 years, and 95 times over 40 years).

If, over the past 40 years, you had invested only EUR 1 at each US stock market high (as measured by the S&P 500 index), your internal rate of return (IRR) would be 10% today. And if you had invested only at market lows, your IRR over that same time period would be of 11%.

Source: Carmignac, Bloomberg, June 2026.

The volatility of annualised returns diminishes with time. For instance, the volatility of returns on eurozone equities is 20% over a 1-year horizon, but the volatility of annualised returns on that same market falls to 9% over a 5-year period, and to 4% over a 10-year period. The longer the investment horizon, the closer the annualised return gets to its historical average. However, drawdowns and structural shifts remain hard to predict.

Source: Carmignac, NYU Stern, 2026. Past performance is not a reliable indicator of future performance. Returns can rise or fall depending on fluctuations in exchange rates.

Many people believe that holding an investment for the long term will always generate good returns, but this view overlooks an important fact: since 1928, US stocks have spent one out of every four years in periods of low to negative returns, including so called “lost decades” – periods of structural decline characterised by stagnation and low to negative real returns. The same holds true for bonds (e.g. from 1940 to 1981, and more recently since 2021).

Source: Carmignac, NYU Stern, 2026. Past performance is not a reliable indicator of future performance. Returns can rise or fall depending on fluctuations in exchange rates.

What’s the biggest risk for an investor? In fact, it’s not so much volatility as the possibility of an exceptional loss. Investors are rewarded not only for riding out daily market fluctuations but also, and more importantly, for bearing the risk that a crash could be right around the corner. US real GDP fell by around 30% during the Great Depression and US stocks plunged by nearly 65%. But the most devastating outcome was actually a more insidious one – the US dollar has lost close to 97% of its purchasing power since 1913.

Source: Carmignac, Bloomberg, June 2026.

The average yearly drawdown in equity markets is around -12%. In fact, historical data shows that in one out of every three years, markets experienced an intra-year correction of -12% or more – yet 30% of those years still ended with a positive full-year return, averaging around +19%.

Source: Carmignac, Bloomberg, June 2026.

Bonds, unlike equities, tend to have a clearer anchor: the yield to maturity (YTM). The YTM at a given time tends to be a decent proxy for future returns (assuming an appropriate investment horizon). Close to 82% of returns on high-yield bonds five years out can be attributed to the YTM. This figure rises to 90% for investment-grade bonds.

Source: Carmignac, Morningstar, June 2026.

“Star” global equity funds tend to have one thing in common: they rank in the top quartile based on their long-term returns. But that tends to mask significant discrepancies over shorter time periods. If we take a sample of six largely favoured funds that are all in the top quartile based on their 10-year returns, only 50% remain in the top quartile if we consider their 5-year or 3-year returns. Even champions can have a losing season.

Source: Carmignac, Bloomberg, 2026. Past performance is not a reliable indicator of future performance. Returns can rise or fall depending on fluctuations in exchange rates. Investing in Funds presents a risk of loss of capital.

If you had invested €100,000 30 years ago in a global equity fund that delivered a 6% average annual return (which broadly corresponds to the performance of global equity markets over that period), such an investment would be worth €574,000 today. But if that portfolio gained an additional 0.5% per year (which corresponds to the average outperformance achieved by genuinely active global equity funds) you would have ended up with an extra €90,000. And if that annual outperformance had been 4% (which is what Carmignac Portfolio Investissement1 achieved over the period) you would have ended up with a total of €1,744,940 today – an extra gain of over €1 million.

The main takeaway from these 10 facts is that long-term investing does not follow a straight line, and hence the best approach is to strive to be a patient investor – provided one is comfortable with some detours and road bumps along the way. Financial markets do not offer an easy ride, but they do reward those who stay to the end.

1Past performance is not a reliable indicator of future performance. The Fund presents a risk of loss of capital. Returns can rise or fall depending on fluctuations in exchange rates.

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