Is Coca-Cola Stock A Good Fit For Your Portfolio? Trefis Team Wed, October 14, 2026 at 1:32 PM EDT 4 min read KO +1.90% ^GSPC -1.33% PEP +1.13% KDP +1.96% MNST +1.81% Explore stocks on Coinbase Trading disclosure Trading disclosure The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for certain activity generated through this link. Prices displayed are informational.
Investors holding shares of Coca-Cola (KO) probably pair the soft drink maker, worth about $388 billion, with standard S&P 500 index funds. Those broader market positions fluctuate daily, leaving individual holdings like Coca-Cola to either amplify those swings or cushion the blow. So what has Coca-Cola done on the market's good days and on its bad ones?
On Balance, Coca-Cola Climbed As The Market Slid
The daily trading patterns over the past year show Coca-Cola stock tended to rise when the market fell. On the S&P 500's down days, the broader index declined 0.58% on average, while a $10,000 stake in Coca-Cola gained about $24. When the index posted up days, gaining an average of 0.65%, that same $10,000 holding managed to add only about $2.
The beverage company captured almost none of the broader market's good days, yet moved in the opposite direction during declines. A stock's beta measures its average move for each 1% change in the underlying index. Factoring in all up and down days over the past year, Coca-Cola recorded a beta of minus 0.25.
Coca-Cola still experienced wider price swings than the broader market. Over the past year, its volatility, which measures the spread of daily price movements, registered at 18.9% a year against 12.7% for the S&P 500. Those daily movements ran counter to the index on average, though only loosely, allowing Coca-Cola to steady the market risk an investor holds on an ordinary day. That dynamic did have limits. During the index's worst month over the past year, the S&P 500 fell 5.1%, while a $10,000 position in Coca-Cola lost about $676, a drop of 6.8%.
What Has Coca-Cola Returned For Its Risk?
Coca-Cola shares returned 14.5% a year over the past five years, edging out the 13.9% a year delivered by the S&P 500. The stock achieved those gains with slightly milder price fluctuations: volatility over those five years registered at 16.7% a year for Coca-Cola, compared with 17.1% for the index.
Dividing each return by its volatility shows the gain earned for every unit of price swing. That yields 0.87 for Coca-Cola and 0.81 for the S&P 500, so the stock compensated investors slightly better than the broader market for the volatility they absorbed. Coca-Cola also tracked the market only loosely over those five years. Its correlation with the index, which measures how closely the two assets' moves line up, was 0.26.
What Coca-Cola's Business Says About Future Swings
Coca-Cola runs a steady business, but its price swings have already widened: 18.9% a year over the past year, against 16.7% a year over the past five years. The company updated its financial outlook in July 2026, raising its 2026 forecast for organic revenue growth to about 5%. That figure sits at the high end of earlier guidance and remains squarely within the 4% to 6% range targeted by management over the long term.
A broad geographic footprint further insulates the company's results from relying on any single market. North America, operating as the largest region, generated $19.6 billion of the total $47.9 billion revenue recorded in fiscal 2025. The combined Europe, Middle East & Africa segment came next.
An ongoing tax dispute with the IRS remains an open matter as the company pursues an appeal. During a July 2026 earnings call, management noted the timing of the appeals court's decision is unknown. Any forthcoming ruling would function as isolated news for Coca-Cola rather than a market-moving event.
Assuming the trading patterns of the past year hold, the next market up day would barely lift shares of Coca-Cola. The next down day for the broader market would, on average, leave the holding slightly higher. Portfolios heavily weighted with other soft drink or consumer staples companies might already possess a similar degree of stability. Under those circumstances, Coca-Cola may steady your money less than it would if held alongside a standard index fund alone.
Now you know KO better. And that's our purpose: to make you informed before you invest your money. However, making a bet on a single stock carries its own risks.
There is a smarter choice. Since its inception, the Trefis High Quality (HQ) Portfolio has beaten the benchmark that combines the three major indices - the S&P 500, S&P Mid-cap, and Russell 2000. And it did so without taking the concentrated risk that comes with do-it-yourself stock picking.
