When Stocks, Bonds and Oil Move Together

Our Global Head of Fixed Income Research Andrew Sheets takes a closer look at potential investment paths when markets appear increasingly synchronized around a few macro themes. Read more insights from Morgan Stanley. ----- Transcript ----- Welcome to Thoughts on the Market. I'm Andrew Sheets, Global Head of Fixed Income Research at Morgan Stanley. Today, how to square a market that is both highly correlated, and highly divergent, at the same time. It’s Tuesday, June 2nd, at 3pm London. A market of one. That may be a way that you hear investing described these days, and strictly speaking, it's accurate. Stocks and bonds, the two big asset classes that form the bulk of most investors' portfolios, are moving in unusual lockstep. Stocks are rising when yields fall, and vice versa, with the most consistency in over 20 years. And both, perhaps unsurprisingly, are moving in close relationship with the price of oil. At this point, it all seems pretty clear. The Iran conflict is a big deal for markets, representing the largest disruption to global energy supply in history. Of course, stocks and bonds, and oil are all moving together based on the perception of how this enormous issue resolves. In doing so, they suggest that the conflict still remains quite important, even as markets appear quite strong. Just as we can measure the extent to which stocks, bonds, and commodity prices move together, we can also track how individual stocks move relative to each other. And so, are stocks also rising and falling together like we see with these big asset classes? No. In fact, without exaggeration, it is the complete opposite. There are a few ways to measure how the individual stocks within, say, the S&P 500, are moving relative to one another. But all of them say the same thing. Day to day, stocks are moving with unusual dispersion and independence. At the same time that the relationship between stocks and bonds is the tightest in over 20 years, the relationship between stocks within the S&P 500 – to each other – is the lowest. If Iran is the factor driving the tight linkage that we discussed between stocks and bonds, Artificial Intelligence may be the culprit behind the opposite effect when we get down into individual companies. The perception that some companies will be incredible beneficiaries of AI, while others will be left behind, would explain at least part of the divergent performance. And so would an attention gap; with so much focus and positioning in AI sensitive names, other parts of the market can quickly feel forgotten, and thus move more independently. Indeed, while the S&P 500 is back near all-time highs, the market’s advance-decline line, a measure of how many stocks are going up versus going down, is lower than where it was in late February or mid-April. We see a few implications to all of this. First, while stocks and bonds are closely linked for the moment, we think that this correlation would flip under more significant energy market stress. Were the price of oil to spike to our Commodity team’s bear case, of $130-$150/bbl, we think yields would start to fall as the market would turn more concerned about the effect of all of this on growth. So, while the diversification of bonds has been disappointing so far, we do think that it will improve and materialize when it really matters. In equities, this dispersion means that stock selection can allow one to stand out from the overall market. Indeed if one considers themselves a stock picker, low correlation between stocks is exactly the market that you would hope to have. And it also means that many individual names may not be as heady as the broad market levels would imply. As discussed on this program recently, my colleague Mike Wilson and our U.S. Equity Strategy team expects U.S. stock performance to broaden out from here. Thank you, as always, for your time. If you find Thoughts on the Market useful, let us know by leaving a review wherever you listen. Also tell a friend or colleague about us today.

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When Stocks, Bonds and Oil Move Together is an episode from Thoughts on the Market by Morgan Stanley.

This episode is 00:04:11 long.

This episode was published on Jun 2, 2026.

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