The Market’s Siren Song: Why We Keep Getting Lured In

The stock market’s long-term winning streak is a comforting narrative, one that’s been reinforced by years of data showing the S&P 500’s propensity for growth. However, scratch beneath the surface and you’ll find a complex web of factors driving this trend – many of which are far from sustainable.

Investors often feel compelled to try and sidestep market downturns, particularly in an era where retirement savings and quality of life hang precariously in the balance. As veteran fund manager Ed Borgato noted, “Getting on the right side of a trend and then doing nothing is a hard trick for the educated/ambitious minds most attracted to this game.”

Corporate earnings are expected to rise by 30% by 2026, while nominal GDP growth exceeds 6%. Additionally, $750 billion in AI-related investments is pouring into the economy, and corporate-bond spreads remain benign. These factors have contributed to the market’s recent surge – but at what cost?

The liquidation of hedge fund Situational Awareness after its leveraged AI-hardware positions unwound was a classic case of the “market gods” being placated. However, this brief pain may not be enough to satiate the market gods, and investors should start to worry about excesses driving this trend.

The S&P 500’s clean breakout last week was largely due to strength in momentum stocks offsetting July’s downturns elsewhere. But what about the underlying fundamentals? Have we simply been papering over a deeper structural issue – one that will eventually come back to haunt us?

Bears had an opportunity to inflict more damage, but they couldn’t capitalize on it. Perhaps this is because the market’s message remains inscrutable, with frequent overshoots and crowd-humiliating turnabouts.

Risks are ever-present, and stakes are high. Even seasoned investors should expect to experience a “lost decade” of lousy performance over the course of a lifetime – or at least, that’s what the data suggests. Yet we continue to chase the market’s siren song, convinced that this time will be different.

The Illusion of Certainty

One reason we’re so enamored with the idea of a sustained bull run is that it’s far more comforting than the alternative. However, when reality intrudes, investors may finally wake up to the fact that 2026 corporate earnings are based on rosy assumptions, or that nominal GDP growth is propped up by debt-financed AI capex.

We’re living in a world where short-term gains are increasingly fueled by extraordinary third-party investment windfalls. The market will neither extrapolate nor put a multiple on such events – but investors would do well to be cautious.

A House of Cards?

The S&P 500’s 47% second-quarter earnings growth was driven, in part, by $140 billion in unrealized gains from Alphabet and Amazon’s investments in Anthropic and SpaceX. This is not sustainable, nor can it be extrapolated into the future. We continue to ignore risks, seduced by the prospect of easy profits.

The semiconductor surge remains a concern, with excesses driving markets and investor sentiment increasingly disconnected from reality.