Joseph Adinolfi

A rush of retail investors and quant funds has caused a shift toward more borrowed money and more short-term trading.

Wall Street’s ‘fear gauge’ is signaling the all-clear, despite myriad looming risks.

Bull markets climb a wall of worry, as the old saying goes. The past six years have tested just how high that wall can get.

Among the more popular indicators monitored by Wall Street’s technical strategists, the “Hindenburg Omen” definitely has the coolest name — and is among the more controversial.

Some investors are worried that this AI-powered bull market might be getting a little long in the tooth as it approaches its fourth birthday.

Many investors were caught flat-footed when stocks suddenly jerked higher late last month, as a dramatic July momentum unwind ended with a hint of optimism.

President Donald Trump and Treasury Secretary Scott Bessent chalked up last week’s historic joint intervention to support the yen as a friendly gesture in support of an ally.

Retail investors were doing what they do best on Wednesday: Buying the dip in SpaceX shares aggressively, even as the company’s stock sank after it released its first earnings report.

What a difference a week makes. The S&P 500 has surged more than 6% over the past five days, its biggest gain since last year’s tariff tantrum.

One of the wildest months in recent memory for the U.S. stock market is ending on yet another remarkable note: A highflying hedge fund run by an AI wunderkind in his mid-20s has apparently just been carried out on a stretcher.

Just weeks after driving major indexes such as the S&P 500 and Nasdaq Composite to record highs, semiconductor stocks are taking a beating once again.

Exposure to the artificial-intelligence boom has become virtually impossible for investors to avoid. The theme hasn’t just cornered the stock market. It has systematically swallowed up corporate credit and venture capital, too.

The S&P 500 has been treading water for more than a month now, but beneath the surface of the U.S. equity market, big changes are taking shape.

Why protracted bear markets may be a thing of the past.

Low-volatility stocks are having a moment after a long stretch of underperformance.

While valuations still look extreme relative to history, the recent pace of corporate earnings growth has also meaningfully diverged from the long-term trend.

Retail trading activity set records in May and June — and the propensity of that cohort to buy the dip has looked pretty smart.

The first half of 2026 is coming to a close on Tuesday, and with it, another rollicking stretch for the U.S. equity market.

The rise of the retail investor is making the market less efficient — and AI is compounding the problem, according to a quant at Goldman Sachs.

The rally is once again broadening beyond tech