🎩 Hedge Funds Just Had Their Best Start Since 2021. Here's Why They're Still Being Careful.

What AI, Expensive Markets, Warren Buffett & Seth Klarman Can Teach Every Long-Term Investor

Global hedge funds gained 7.2% in the first half of 2026—but the smartest investors remain focused on valuation, patience, cash, and margin of safety.

🚀 If the world's largest hedge funds have one thing in common, it's this:

They celebrate great performance...

...and then immediately begin worrying about the next drawdown.

That discipline may sound almost pessimistic during a raging bull market, but history suggests it's one of the defining characteristics separating investors who compound wealth for decades from those who simply enjoy a few good years.

The first half of 2026 certainly gave professional investors plenty to celebrate.

According to PivotalPath, as reported by Bloomberg, global hedge funds generated an average return of 7.2% through June 30, marking the industry's strongest first-half performance since 2021. Technology-focused managers led the charge, returning an impressive 27%, powered largely by relentless enthusiasm surrounding artificial intelligence, semiconductors, and hyperscale computing infrastructure.

Several household names delivered standout performances.

Marshall Wace's flagship Eureka fund climbed nearly 20% during the first six months of the year after another strong June. D.E. Shaw's macro-oriented Oculus fund advanced more than 27% year-to-date. Whale Rock Capital surged an astonishing 72.5%, driven primarily by semiconductor holdings and its investment in Anthropic. Appaloosa Management also enjoyed an exceptional first half, returning roughly 32%, largely thanks to memory-chip manufacturers benefiting from the AI infrastructure boom.

Even specialist trading strategies contributed meaningfully.

Millennium Management reportedly generated approximately $3.7 billion during June alone from teams specializing in index-rebalancing events, including the accelerated inclusion of SpaceX across major equity benchmarks.

Not bad for an industry that only a few months earlier had been navigating one of the year's most uncomfortable market corrections.

March reminded everyone that markets rarely travel in straight lines.

Geopolitical tensions involving Iran disrupted shipping through the Strait of Hormuz, oil prices surged, inflation fears returned almost overnight, and many investors briefly questioned whether AI enthusiasm had simply gone too far. Software companies perceived as potential AI losers experienced sharp declines, while uncertainty spread across growth sectors.

Yet professional investors adapted.

Many rotated.

Many hedged.

Many simply waited.

By June, the industry had largely recovered and, in many cases, surpassed previous highs.

Since January 2020, hedge funds have now generated annualized returns of approximately 8.5%, according to PivotalPath, outperforming many investors' expectations during a period that has included a pandemic, inflation shocks, aggressive central-bank tightening, geopolitical conflicts, and one of the fastest technological revolutions in modern history.

That's impressive.

But perhaps not for the reason many people think.

🚀 FUNanc1al Atomic Statements™

🧠 Bull markets reward confidence. Long-term wealth rewards discipline.

🧠 Great companies become bad investments when investors pay impossible prices.

🧠 Cash earns its highest return the day panic arrives.

🍽️ Food for Thought #1: Great Performance Doesn't Automatically Mean Cheap Markets

It would be tempting to interpret hedge funds' excellent first-half returns as evidence that investors should simply keep buying everything.

History suggests otherwise.

One of the most widely followed long-term valuation measures—the Shiller Cyclically Adjusted Price-to-Earnings Ratio (CAPE)—continues to paint a picture of a market that remains historically expensive.

Current S&P 500 Shiller P/E: 32.18
------------------------------------

Historical Mean: 16.23

Historical Median: 15.08

Historical Minimum: 5.31 (December 1917)

Historical Maximum: 123.73 (May 2009)

Source: Robert Shiller, "Irrational Exuberance."

In other words, today's market trades at roughly double its long-term historical average.

That does not mean a crash is imminent.

Expensive markets can remain expensive for years.

Outstanding businesses frequently justify premium valuations.

Artificial intelligence may indeed produce an entirely new generation of extraordinarily profitable companies.

But higher valuations also imply higher expectations.

The margin for disappointment becomes progressively smaller.

One disappointing earnings report, one slower-than-expected AI rollout, one geopolitical surprise, or one recession can suddenly compress valuation multiples much faster than investors anticipate.

Perhaps this explains why many elite hedge fund managers continue emphasizing capital preservation even while posting some of their strongest returns in years.

Good performance doesn't eliminate risk.

Sometimes it simply changes where the risk resides.

💻 Food for Thought #2: Semiconductor Stocks Are No Longer Cheap—They're Priced for Exceptional Execution

Few industries have benefited more from artificial intelligence than semiconductors.

Chip manufacturers have become the modern equivalent of nineteenth-century railroad builders: everyone wants exposure because everyone believes they're constructing tomorrow's economic infrastructure.

That optimism has been richly rewarded.

But today's valuations deserve careful consideration.

The semiconductor sector currently trades at a forward P/E approaching 30, comfortably above the broader S&P 500, whose forward multiple sits closer to the mid-20s.

Some semiconductor-focused ETFs command substantially higher valuation multiples still.

Is that unreasonable?

Not necessarily.

Current AI demand appears very real.

Hyperscalers continue investing tens of billions of dollars into data centers.

Cloud providers continue expanding capacity.

Corporate AI adoption continues accelerating.

Many institutional investors expect this spending cycle to extend well into 2027 and perhaps beyond.

The key distinction is this:

The semiconductor industry isn't necessarily overpriced.

It's priced for exceptional execution.

That's an important difference.

When investors pay premium multiples, they implicitly assume that earnings growth, technological leadership, and capital spending will continue delivering exceptional results.

If those assumptions prove correct, today's valuations may ultimately look reasonable.

If growth merely slows toward more normal levels, however, valuation multiples could compress even while company fundamentals remain perfectly healthy.

History offers countless examples.

Great businesses don't always produce great investments.

Sometimes investors simply pay too much for them.

The lesson isn't to abandon technology.

The lesson is to remember that price always matters—even when the story is extraordinary.

🌍 Food for Thought #3: Cheap Markets Usually Exist for a Reason

If expensive markets deserve caution, does that automatically mean investors should rush into the cheapest corners of the world?

Not quite.

One of investing's oldest traps is called the value trap.

Some assets trade cheaply because they genuinely deserve to.

Structural economic weakness.

Poor corporate governance.

Political instability.

Slowing demographics.

Heavy debt burdens.

Weak profitability.

Sometimes, low valuations are not opportunities—they're warning labels.

The challenge for investors is distinguishing between temporary pessimism and permanent impairment.

That's where value investing becomes both an art and a science.

Today, several areas of global equity markets remain meaningfully cheaper than the broader U.S. market.

International developed markets continue trading at substantial discounts to U.S. equities.

Emerging markets—including countries such as Brazil and China—also remain attractively valued relative to history, although each carries its own macroeconomic and geopolitical risks.

Even within the United States, attractive pockets of value still exist.

Financials continue trading at reasonable multiples despite improving capital positions.

Energy companies remain inexpensive by historical standards, with many producers generating substantial free cash flow while trading at single-digit forward earnings multiples.

Healthcare, pharmaceuticals, and utilities likewise continue offering lower valuations than many high-growth technology names while often providing attractive dividend yields and resilient business models.

Does that mean investors should abandon technology?

Absolutely not.

Artificial intelligence could very well reshape the global economy over the coming decade.

Many of today's winners may become even larger.

But history also reminds us that leadership changes.

Today's most expensive sectors eventually become tomorrow's mature industries.

Tomorrow's leaders often emerge from places few investors are currently watching.

The goal isn't predicting exactly when that transition occurs.

The goal is ensuring your portfolio remains resilient regardless of when it does.

💰 Cash Is Not Laziness. It's Optionality.

One characteristic quietly unites many of history's greatest investors.

They never felt compelled to remain fully invested.

Warren Buffett has repeatedly allowed Berkshire Hathaway's cash balance to swell into the hundreds of billions of dollars whenever attractive opportunities became scarce.

Critics inevitably ask the same question:

"Why isn't he investing?"

Perhaps the better question is:

"Why should he?"

Buying mediocre opportunities simply because cash feels uncomfortable has rarely been a recipe for exceptional long-term returns.

Seth Klarman built an entire career around precisely this principle.

At The Baupost Group, cash isn't viewed as an embarrassing drag on performance.

It's viewed as strategic ammunition.

Patience is not inactivity.

Patience is preparation.

When markets panic...

When liquidity evaporates...

When forced sellers appear...

Cash suddenly transforms from an idle asset into perhaps the most valuable asset in the portfolio.

As we wrote earlier:

Cash earns its highest return the day panic arrives.

That doesn't mean individual investors should suddenly liquidate their portfolios and sit entirely in cash.

Far from it.

Long-term investing still wins.

Compounding still matters.

Time remains one of the greatest competitive advantages available to ordinary investors.

But today's valuations do offer several timeless reminders.

Long-term investors should remain focused on owning outstanding businesses while recognizing that elevated market valuations may eventually moderate.

Portfolio rebalancing can help smooth volatility without attempting to predict market tops or bottoms.

And investors seeking fresh opportunities may find better long-term risk-adjusted prospects in sectors and regions that currently receive far less attention than the AI darlings dominating today's headlines.

Discipline rarely makes exciting headlines.

Neither does patience.

Yet those two qualities have quietly built many of the world's greatest fortunes.

Perhaps that's the real lesson behind hedge funds' remarkable first half.

Not that they generated excellent returns.

But that many of them remain just as focused on managing risk after the rally as they were before it.

That's a mindset individual investors may want to borrow.

📌 Signal Extract

Bull markets reward confidence. Long-term wealth rewards discipline.

🎯 High-Conviction Takeaway

Cash earns its highest return the day panic arrives.

⚡ Quick Take / TL;DR

Global hedge funds delivered their strongest first-half performance since 2021, fueled largely by AI, semiconductors, macro trading, and event-driven opportunities. Yet many of the industry's best investors remain cautious. With the broader U.S. market still trading at historically elevated valuation multiples, today's environment calls not for fear, but for discipline. Long-term investors should continue compounding wealth, rebalance when appropriate, remain valuation-conscious, and remember that patience is often an investment strategy in itself.

Invest wisely. Stay curious. And, as always... Carpe Diem.

❓ Frequently Asked Questions

Should investors sell because the market looks expensive?

Not necessarily. Elevated valuations increase future risks, but they do not predict when markets will reverse. Long-term investors are generally better served by maintaining disciplined investment plans rather than attempting to time corrections.

Are semiconductor stocks overvalued?

Not automatically. They are priced for continued exceptional execution. If AI spending continues delivering strong earnings growth, current valuations may prove justified. If expectations moderate, valuation multiples could compress even if fundamentals remain healthy.

Where are today's cheaper opportunities?

Several international markets continue trading at meaningful discounts to U.S. equities. Within the United States, Financials, Energy, Healthcare, and Utilities generally trade at considerably lower valuation multiples than many technology companies.

Why do legendary investors hold so much cash?

Cash provides flexibility. Investors such as Warren Buffett and Seth Klarman view cash as optionality rather than dead capital, allowing them to act decisively when market dislocations create exceptional opportunities.

🌉 Food for Thought: The Cross-Hub Connection

This story extends well beyond hedge funds.

It's about behavioral finance.

It's about resisting the temptation to confuse recent performance with future certainty.

It's about understanding that valuation still matters—even during technological revolutions.

Most importantly, it's about recognizing that the greatest investors rarely become more aggressive simply because markets have rewarded them.

They become more selective.

That mindset applies equally to investing, entrepreneurship, career decisions, and life itself.

Success is wonderful.

Protecting it is wisdom.

About Frédéric Marsanne

Frédéric Marsanne is the founder of FUNanc1al—part market analyst, part storyteller, part accidental comedian. A longtime investor, entrepreneur, and venture-builder across technology, biotech, and fintech, he blends rigorous financial analysis with behavioral psychology and a touch of humor to help readers laugh, learn, live better lives, and invest a little wiser. When not decoding insider purchases or exploring hedge fund portfolios, he's building Cl1Q, writing fiction, painting, or discovering new passions to FUNalize.

📝 Editorial Note

Every FUNanc1al article is grounded in human research, analysis, and editorial judgment. Modern AI tools may assist with research organization, editing, and presentation, but every opinion, conclusion, rating, and recommendation remains subject to human oversight and responsibility.

To learn more about how we research, write, and review every article, please visit our Editorial Process page.