A Bull Market Built on Earnings
The current market environment is, unambiguously, a bull market. The S&P 500, the Nasdaq, the Russell 2000, and even the equal-weight S&P 500 are all sitting at fresh record highs, and the engine driving this advance is earnings. Estimates for 2026 and 2027 are each up roughly 11%, which is effectively the same magnitude as the S&P 500's gain this year. In fact, because earnings have risen so powerfully, there has actually been a slight multiple contraction underneath the headline rally — a remarkable detail that explains why the move is harder to dismiss as pure speculation.
The blockbuster first quarter of earnings set the tone, and the drift higher in forward estimates has not let up. The market is now pricing in a mid-teens growth rate into 2027, which embeds a great deal of optimism into the earnings line. For now, that optimism appears warranted. But it is the kind of assumption that demands constant revisiting, because the sustainability of those earnings is the single most important question heading into the second half of 2026 and into 2027.
Shaking Off the Shocks
What is striking is how much the market has absorbed without flinching. There has been an energy price shock for the record books. The Federal Reserve has shifted from accommodative to something closer to neutral — not combative, but no longer the supportive force it once was. Yields have moved sharply higher. And still, the market has shaken all of it off, because the earnings story has been strong enough to overpower every macro headwind thrown at it.
That said, the move has been powerful in a short stretch, and the market is now slightly overbought. Breadth has not been as broad as one would normally hope to see when the headline index is this strong. And critically, investor positioning has flipped: from being very underweight stocks after the Iran war, investors are now very overweight. This shift suggests the market may have to digest its gains as it moves through the summer.
AI Back in the Driver's Seat
AI has returned to center stage, and nowhere has that been more visible than in semiconductors. A recent 20% single-day move in Micron came on the back of an upgrade with a $16.25 price target — a street high. The argument underpinning the upgrade was simple but provocative: Micron should trade at a normalized multiple. Historically, Micron has been a deeply cyclical company, meaning that when earnings peaked, the multiple shrank. The new claim is that demand is now so structural — so secular — that the cyclicality argument no longer applies.
"This time is different" is, of course, often the famous last words of strategists. Yet there is a real case to be made that the AI super-cycle could run further and last longer than past cycles, which justifies attaching a higher multiple to today's earnings. The semiconductor index itself peaked at 32 times earnings back in 2025 and trades around 26 times today. If it climbed back toward 32 times, concern would be warranted. But the gap suggests another leg of multiple expansion is at least plausible.
The Concentration Problem
The dominance of semiconductors in the index is itself a structural risk worth noting. Semis now make up roughly 16% to 18% of the S&P 500, compared to just 2% a decade ago. That concentration almost certainly makes the index more volatile and more cyclical in the long run. Even though parts of the semiconductor industry are less cyclical than they used to be, the sector still carries enormous capital expenditure and high capital intensity. On the other side of the AI infrastructure boom, that 18% weight could translate into meaningfully more earnings volatility for the broader index.
The Lack of Fear Itself
The deepest worry, however, is not earnings — it is psychology. The only thing to fear right now is the lack of fear itself. Everywhere one looks, there is an insatiable appetite for risk. Put-call ratios show investors are unwilling to pay anything for downside protection, preferring upside optionality almost exclusively. Flows into leveraged ETFs have been extreme. FINRA margin loan balances have skyrocketed. By every measure of behavior, the market is loaded for risk.
Perhaps the most fascinating signal is that unprofitable stocks have been among the best-performing names in the market. The Goldman Sachs Non-Profitable Tech Index is up more than 50% since the March lows, and rose 5% in a single recent session. The market has entered what might be called a "Ministry of Silly Stocks" season — a period in which silly stocks, including names that are not just unprofitable but actually pre-revenue, lead the tape. These leaders feel exhilarating on the way up, but they tend to inject substantial volatility into portfolios later.
This is, in itself, a risk factor. A digestion in high-beta, low-quality, low-profitability names typically coincides with a period of broader market volatility. Because the recent advance has been such a one-way risk-on path, any speed bump is likely to expose the underlying complacency.
The Quiet Case for Bonds
While equities run, bonds deserve fresh attention. With the 10-year sitting near 4.46% — only three basis points lower on the morning in question — recent yield strength offered an opportunity to add to duration. Over the past two years, economic data has consistently softened through the summer months. The 10-year is closely correlated with the Citi Economic Surprise Index, which tracks whether data is beating or missing expectations. Strong upside surprises have pushed yields higher; if growth softens through summer, that very mechanism could allow bonds to rally.
The deeper question is whether the 60/40 portfolio still works. The answer depends entirely on the risk being hedged. Bonds are not a good hedge against stagflation — a scenario where growth is weak but inflation runs hot. Bonds are, however, an excellent hedge against weaker growth paired with moderate inflation, which describes the regime that prevailed before COVID. It is worth remembering that we lived through a 40-year bull market in bonds: yields peaked in 1982 and reached their ultimate low in 2020, when the 10-year traded at 0.5%, an almost unbelievable level in retrospect. The investing lesson is clarity of purpose: investors should be specific about what risk they own bonds to hedge against.
Targets, Forecasts, and the Chase
Against this backdrop, sell-side targets keep climbing. Goldman Sachs has set a year-end S&P 500 target of 8,000. The math can be made to work — take forward earnings, attach a peak valuation multiple, and 8,000 is reachable. The harder question is whether the market will be willing to put a peak valuation on earnings that, particularly given the heavy semiconductor weighting, are inherently more cyclical than they appear.
It is striking that analysts are now chasing their forecasts higher rather than leading them. That pattern often signals a degree of complacency rather than conviction. Positioning data confirms the chase: Deutsche Bank's positioning index recently showed large-cap tech sitting at the 93rd percentile of historical weight. Investors are already all-in.
Conclusion
The bull market is real, and earnings are doing the heavy lifting. But the structure of this rally — high concentration in cyclical semiconductors, surging leverage, vanishing demand for downside protection, leadership from unprofitable and even pre-revenue stocks, and a sell-side scrambling to raise targets — is precisely the structure that benefits from caution rather than enthusiasm. Trends are powerful, and fighting them rarely pays. Yet when no one is afraid of anything, that absence of fear becomes the most important thing in the market.