The S&P 500 Index marks the fourth anniversary of the current bull market today.

On October 12, 2022, the index hit its final bear market closing low of 3,577 points; four years later, that figure has climbed to 7,811 points, a cumulative gain of nearly 120%, more than doubling over four years.

Consumer spending and labor market resilience, strong earnings growth, and the AI revolution have together forged this historic rally.

MBI Deep Dives pointed out that the tech landscape is now truly globalized, with a handful of companies aggregating demand and marginal costs approaching zero, and concentrated market capitalization more accurately reflecting where profits flow.

Hugo Ferrer argued that the current deterioration in market breadth stems from higher interest rates rather than concerns about slowing growth, thereby reducing the severity of that signal.

But at the four-year milestone, market sentiment is far from relaxed.

The MSCI All Country World Index has stalled since hitting a record in mid-August, with inflation, bond volatility, and AI spending concerns continuing to weigh on risk appetite.

JPMorgan and Goldman Sachs kicked off the third-quarter earnings season on Tuesday, with S&P 500 constituent earnings expected to grow 25% year-over-year, and Citi's model showing that the beat rate this quarter will exceed the previous quarter, led by technology, healthcare, and mining sectors.

Leverage Shares analyst Violeta Todorova said this is not life-or-death, but it is a "prove it to me" moment, where the rally needs confirmation because the bar has been raised. "Usually companies just need to step over a lowered bar; this time they have to jump over a higher one."

Roundhill Financial CEO Dave Mazza said that merely beating expectations and raising guidance no longer earns rewards, and the bar this quarter is to beat expectations, raise guidance, lift full-year guidance, and demonstrate margin durability.

AI remains the core main theme of the market.

Market research data shows that U.S. AI-related stocks are expected to see third-quarter earnings surge 47%, outperforming all sectors except energy, with the IT sector expected to account for one-third of the S&P 500's total profits this year.

In Asia, Taiwanese and South Korean companies are expected to drive a 66% surge in regional earnings growth.

But after the MSCI World Information Technology Index rose 31% this year and hit a record high, the bar for further gains is already very high.

Roundhill Financial CEO Dave Mazza said, "Simply beating expectations and raising guidance will no longer earn rewards, because that is already expected. The bar this quarter is: beat expectations, raise guidance, lift full-year guidance, and demonstrate margin durability."

Micron Technology's results beat expectations but investors reacted tepidly, and Samsung Electronics shares still fell after operating profit surged nearly ninefold.

Hyperscaler data center spending has boosted the outlook for grid operators and infrastructure providers.

However, surging bond yields have raised concerns about the pace of financing, with SpaceX's credit risk indicator hitting a new high and its bonds weakening in the secondary market.

Broader growth investors are also looking for non-tech sectors to pick up the baton, such as evidence that consumer, industrial, and banking sectors—more broadly cyclical sectors—are also contributing to profit growth.

CG Asset Management portfolio manager Emma Moriarty said, "Watching how these non-tech sectors perform will be especially interesting, as a barometer of the broader economy."

Morgan Stanley analysis shows that the median Russell 3000 constituent is expected to see 14% earnings growth in 2026, with robust earnings revisions and declining valuations in the industrial sector.

Analysts said, "We expect earnings quality, free cash flow, and revision breadth to become key differentiators."

Meanwhile, in European markets, the HALO ("heavy assets, low obsolescence risk") strategy is favored, seen as less affected by AI volatility.

In Asia, investors are also seeking assurance that earnings growth can extend beyond the tech sector that has a major impact on the AI supply chain.

Consumer-side pressure continues to manifest.

Energy price increases are being passed through to fuel, and rising bond yields are pushing up mortgage, auto loan, and credit card rates.

Costco's paid membership growth fell short of expectations, and H&M's margins declined significantly.

Bank stocks are also under pressure, with the Stoxx 600 banking sector falling about 8% over the past two weeks, and JPMorgan turning cautious on Southeast Asian banks, warning that surging long-end yields could trigger mark-to-market losses.

Just as market divergence intensifies, "Big Short" investor Michael Burry is doubling down on his bearish bets.

He said last Sunday that he has concentrated most of his short positions into put options on the Nasdaq 100 Index (NDX) and the VanEck Semiconductor ETF (SMH), expecting a major top within the next nine months.

His NDX puts expire in April 2027, and his SMH puts expire in June 2027, both roughly 20% out of the money.

In SMH, Nvidia accounts for 19.6%, TSMC 9.3%, AMD 5.6%, and Broadcom, Micron, Marvell, and Applied Materials each about 5%.

Burry also continues to hold long-term put options on Oracle and Palantir.

Year-to-date, SMH is up more than 67%, Palantir is up 17.6%, and Oracle is down 26.5%.

At the intersection of the bull market's fourth anniversary and earnings season, the market is facing critical validation: whether AI earnings can deliver, whether non-tech sectors can pick up the baton, and whether consumers can withstand high interest rates.

If earnings are strong, the year-end rally still has fuel; if corporate earnings fail to clear the market's raised bar, Burry's alarm may prove to be more than just noise.