I was looking at The Coca-Cola Company's 1.550% September 2021 bonds (CUSIP: 191216BY5). Last trades reported to FINRA (using TRACE):

Coca-Cola bonds 191216BY5

To my surprise, someone was willing to get a negative yield to maturity (YTM) on the bond. What are some possible reasons for accepting this negative yield? Instead of accepting this negative yield, the bond purchaser could have just chosen to buy US treasury bonds which (a) currently have positive yield, and (b) have theoretically lower credit risk than any corporate bond.

I read Why would I buy a bond with a negative yield?, but most of the reasons there do not explain this particular case because the trade size is small (about $700,000) in this case.

  • 1
    I notice the nearby trades do not have a negative yield. Are you seeing a pattern with lots of these trades? If not, it could be a mistake, a forced hand, terrible execution, or something else outside of efficient and rational market transactions.
    – farnsy
    Commented Jul 8, 2020 at 5:02
  • No, I do not see any pattern of these trades. I've only noticed that: (a) the yields are highly volatile (due to low yields which are very sensitive to changes in price), and (b) there was a trade with negative yield. Thank you for the explanation.
    – Flux
    Commented Jul 8, 2020 at 7:03

2 Answers 2


I notice that the nearby trades do not have negative yields, so I don't think we can conclude that the market overall is viewing these bonds as safer than government bonds. Instead it looks to me like the negative yield is an outlier caused by apparent high volatility on this bond. This, in turn, could be the result of illiquidity or other issues related to this bond.

If I was to guess, I might think it is one of these:

  • Terrible execution
  • An error in reporting
  • A mistake on the part of the trader or investor
  • Someone had to obtain the bonds fast (like to deliver on a derivative) and was unable to get a good price quick enough
  • Some kind of quid-pro-quo arrangement

Or some other explanation that doesn't have to do with the underlying market view of the value or riskiness of that bond. The fact that the trade was relatively small makes these explanations more likely as well.


Your question assumes that all government bonds with a positive yield are more reliable than any company's bonds.

There are some circumstances we should take into account here:

  1. The best government bonds have a negative yield already (for 10 year bonds this includes Japan, Switzerland, the Netherlands and Germany - currently even France). The bond that was bought in your screenshot has a remaining running time of roughly one year. For bonds with such a short time, even riskier countries like Portugal (-0,39%) or Italy (-0,21%) have a negative yield. (tradingeconomics)
  2. The safest bond's yield rates converge to the central bank's deposit interest rates. It is important that, if you are looking for "super-safe" investments, you always compare the return with these rates. Currently the ECB is at -0,5%, Swiss central bank at -0,75%, FED at ~0%.
  3. Most countries currently spend a lot of money to overcome the impacts of Corona (fiscal policy). This increases the level of government's debt and its risk of default. As the level of debt is measured as total debt / GDP and the gross domestic product of many countries is free-falling due to Covid restrictions.
  4. There are some companies like Coca-Cola, Google or Apple that have credit-ratings and assumed default risks that are way less than most governments. Also, these companies tend to have no debt at all while countries like Japan, Germany or the US are trillions of dollars in debt.
  5. The risk of companies might be splitted better than those of governments. Most global operating companies have up to hundreds of branches globally and can compensate political crises better than most countries. The US is heavily dependend on trade but gets blocked by other countries due to Covid. Germany depends on all other Euro-zone countries as they have a common currency. Also, some countries might have wars in the next time, which directly leads to bankruptcy. All countries have neighbours...
  6. If you want so safely "park" your money, it is important to diversify to reduce your risk. If you just invest in one bond, you may lose all your money if it defaults: It is the right mix that counts!

The specific trade you posted looks weird at first glance, but we should consider the circumstances. Coca-Cola Company (CCC) has a great credit-rating and a high level of local value creation. This means, that lockdowns and trade bans between countries have no impact for CCC. As they spread their assets and value-creation across all countries in the world (except Cuba und Iran) they have one of the lowest political risks of all government's and companies.

The trade appears to be made to "park" some money and for the specific investor this appeared as a good opportunity. It is obviously unusual, but considering the argumentation above, it might have been a great decision.

  • 1
    While your answer is theoretically possible, I'm not aware of any US corporate bond ever having a lower yield than the treasury security of matching duration except for one-off trades. There's plenty of rhetoric about the US debt and national risks, but in our lifetimes I do not believe there has ever been a default premium on US treasury securities--during times of uncertainty and distress the gap between treasuries and corporate securities of all ratings increases, always.
    – farnsy
    Commented Jul 12, 2020 at 7:21

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