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Amy C. Arnott, CFA
Amy C. Arnott, CFA, is a portfolio strategist for Morningstar. Email Amy at amy.arnott@morningstar.com. She reads all of the emails she receives but doesn't always have time to send a personal response.
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More From Amy C. Arnott, CFA
How Portfolio Diversification Works in Inflationary Periods
Some asset classes tend to fare better than others when inflation is higher than average.
15 US Stocks That Made Investors the Most Money Over the Past 10 Years
These companies delivered the largest gains in total shareholder value.
Why Portfolio Diversification Has Paid Off—but More Isn’t Always Better
5 key takeaways for stocks, bonds, and global diversification from 2025’s market results.
Gold Keeps Reaching New Heights. Here’s Why Investors Should Proceed With Caution
The yellow metal has been on a continued tear, but prudence may be warranted.
8 Lessons for Investors From US Market Turbulence in 2025
Investing lessons on gold, cryptocurrency, the US dollar, inflation, and more as we head into 2026.
Can the Gold Rush Continue? Warning Signs for Investors
The yellow metal has been on a tear, but caution may be warranted.
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Why The 60/40 Portfolio Is Still Alive in 2025
A look at this classic stock/bond investment strategy and how it has performed for investors this year.
How to Use Bitcoin in Your Portfolio
What you need to know about the advantages and risks of investing in cryptocurrency.
Why Berkshire Hathaway’s Stock is Beating the Market in 2025
3 reasons for Berkshire’s resilience amid broader losses.
Top 15 Value-Destroying US Stocks of the Past Decade
These stocks have seen their market caps shrink despite a generally bullish market environment.
Top 15 Value-Creating US Stocks of the Past Decade
These stocks have excelled at creating shareholder value in dollar terms.
Are US Large-Growth Stocks as Unstoppable as They Seem?
The Magnificent Seven group has dominated headlines for years. Is it all too good to be true?
What Higher Inflation Means for Stock and Bond Correlations
The two assets usually move more in tandem during inflationary periods, which makes it harder for investors to build well-diversified portfolios
What Makes an Attractive Warren Buffett Stock?
Companies that make it into Berkshire Hathaway’s portfolio have some common threads in their genetic code
Naysayers Were Wrong About 60/40 Portfolios – Here's Why
After a disastrous 2022, 60/40 turned out not to be dead after all. Its resurrection as a strategy could be a bit different to what you expect, however
You Probably Need to Rebalance
If it's been a while since you looked at your weightings, it might be time for change. Just remember rebalancing manages risk rather than returns
Will the 4% Rule Finally Be Accurate in 2024?
Our annual study suggests new retirees can spend more from their portfolios, but, as ever the question is: just how much?
Does it Pay to Diversify by Style?
Different styles all have high correlations with the overall market, but that doesn’t translate into identical returns
4 Investment Rules of Thumb
Investing can seem complicated, but common portfolio guidelines can be a good starting point
