Which Investments Give the Most Return for the Least Risk?
Most people chase the highest return. Very few ask the more important question:
“How much return am I getting for each unit of risk I take?”
This is the basic idea behind things like the Sharpe ratio. But you don’t need formulas to use the concept. You only need to compare average long‑term returns with how wildly those returns move around.
Below is a simple way to do that for normal, accessible investments.
1. The idea: return per unit of risk
Two facts:
A government bond at 3% with almost no drama can be better than a crypto coin at 30% with constant crashes.
A slightly lower return can be objectively better if it comes with much less risk.
To make that concrete, we’ll look at:
Average annual return – what the asset class has roughly delivered over long periods.
Risk – how volatile it is (how much it swings up and down).
Return ÷ risk – a simple “bang for risk” score.
This is just a simplified version of the Sharpe ratio without the math. The goal is not precision, but ranking: which assets historically gave more reward per unit of pain.
Numbers below are rounded ballpark figures from long‑term historical data (mainly US, because that’s where the best data exists). They’re not forecasts.
2. Accessible asset classes compared
We’ll only look at things a normal private investor can actually buy:
Government bonds
Corporate bonds (via ETFs)
Broad stock market (via ETFs)
Real estate (via REITs)
Individual stocks
Commodities
Cryptocurrencies
Here is the simplified table:
| Asset class | Avg annual return | Risk (volatility) | Return ÷ Risk |
| Corporate bonds (ETF) | 4.5% | 6.5% | 0.69 |
| Broad equity ETF | 8% | 13.5% | 0.59 |
| Government bonds | 2.5% | 4.5% | 0.56 |
| REITs (listed real estate) | 9% | 16% | 0.56 |
| Individual stocks | 9% | 17.5% | 0.51 |
| Cryptocurrencies | 30% | 90% | 0.33 |
| Commodities | 5% | 22.5% | 0.22 |
Again: this is one simplified view over long periods, not a guarantee about the future. But some patterns are very robust.
3. What the table actually tells you
3.1 Corporate bond ETFs: the quiet workhorse
Corporate bond ETFs sit in an interesting place:
Return: higher than government bonds.
Risk: much lower than stocks.
Result: the highest return per unit of risk in our comparison.
You’re lending money to many companies at once, not betting on a single stock. The ETF wrapper gives you diversification across issuers, sectors and maturities.
For a private investor, that often translates into:
More yield than cash or government bonds.
Less gut‑wrenching volatility than stocks.
If you only took one idea from this article, it could be: corporate bond ETFs are an underrated middle ground between safety and growth.
3.2 Broad equity ETFs: the long‑term engine
Broad equity ETFs (for example, funds tracking large diversified indices) are the classic long‑term growth tool.
Historically strong returns (around 8% real/nominal depending on the market and period).
More volatile than bonds, but you are owning pieces of productive businesses.
On a return‑per‑risk basis, they score well, just behind corporate bonds in our simplified table.
For most long‑term investors, broad equity ETFs are the growth engine of the portfolio.
3.3 Government bonds and REITs: stability and income
Government bonds:
Lower returns but also lower volatility.
Their role is not to make you rich, but to buffer shocks and provide a modest yield.
REITs (listed real estate):
Equity‑like volatility, property‑linked income.
Slightly better returns historically than broad stocks in some periods, but also sensitive to interest rates.
Both sit in the middle of the pack on a return‑per‑risk basis. They are useful ingredients, not magic bullets.
3.4 Individual stocks: concentrated bets
Individual stocks have:
Similar average returns to the broad market.
Higher single‑name risk (you can go to zero).
Your return‑per‑risk ratio can be great if you pick well. But that “if” is non‑trivial. For most people, concentrated stock picking reduces the overall return‑per‑risk of their portfolio compared to just holding a global ETF.
3.5 Commodities and crypto: lots of drama, little efficiency
Commodities:
Often volatile.
Long‑term returns aren’t that impressive once you adjust for inflation and roll costs.
In our table, they have the worst return‑per‑risk ratio.
Cryptocurrencies:
Enormous upside in some years.
Enormous drawdowns in others.
Even if you assume very high average returns, the volatility is so extreme that the return‑per‑risk ratio stays mediocre.
These can have a place as small, speculative satellites, not as the core where you want efficient risk‑adjusted returns.
4. A simple way to use this in your portfolio
Once you think in terms of “return per unit of risk”, your portfolio design gets simpler:
Pick your core growth engine
For most people, that’s a broad, low‑cost equity ETF.Add a stabilizer with a strong return‑per‑risk profile
Corporate bond ETFs are a natural candidate here. They:Improve your overall ratio.
Provide income.
Smooth the ride when stocks are volatile.
Use government bonds or cash for shock absorbers
If you need short‑term liquidity or hate deep drawdowns, you can add some government bonds or a money market fund.Keep speculative stuff small
Crypto, single commodities, or very concentrated stock bets can stay in a small “fun” bucket. Assume that money can go to zero without ruining your plan.
You don’t need to compute exact Sharpe ratios or optimize every decimal. The point is to avoid obviously inefficient choices: lots of drama for not much extra return.
5. The core message
If you only remember one thing, make it this:
Don’t just ask “what can make the most money?”
Ask “what gives the most return per unit of risk for a normal investor?”
Viewed through that lens, broad equity ETFs plus corporate bond ETFs already put you in a very efficient part of the risk‑return spectrum. Everything else is fine tuning and personal preference on top.
