The S&P 500 and Nasdaq Composite are closing in on a milestone that has eluded U.S. equities since the Clinton administration. Both indexes are on pace to post annual gains above 10% for a fourth consecutive year, according to reporting from The Wall Street Journal—a streak unmatched since the late 1990s. But the same force that has powered much of this run, an unusually concentrated technology rally, now faces its stiffest test in the fourth quarter: rising interest rates.
A Historic Four-Year Run: What the Numbers Mean
Four consecutive years of stock market double-digit gains is not merely a nice-sounding statistic. It is a statistical outlier. Since 1926, the S&P 500 has returned 10% or more in consecutive years fewer than 20 times, according to long-run datasets maintained by Macrotrends and the Federal Reserve's FRED database. Four-year streaks are rarer still, with the most recent cluster running from 1995 through 1999—the heart of the dot-com expansion.
That period is instructive. The S&P 500 gained 37.6% in 1995, 23.0% in 1996, 33.4% in 1997, 28.6% in 1998, and 21.0% in 1999, according to Macrotrends' historical index data. The Nasdaq, meanwhile, delivered even more extreme returns, including a 39.7% surge in 1995 and an 85.6% gain in 1999. The current run has been calmer in absolute magnitude but no less unusual in duration.
What makes the present streak distinct is the macro backdrop. The 1990s bull market unfolded against falling interest rates and a fiscal surplus. The 2023–2026 rally has instead climbed a wall of rate uncertainty, including the Federal Reserve's most aggressive tightening cycle since the early 1980s. That divergence matters for anyone trying to model what comes next.
Tech's Outsized Role in Powering the Rally
A small cohort of mega-cap technology firms has driven an outsized share of index returns. This is not a new observation, but its persistence has become a defining feature of the current market structure. Market-cap-weighted indexes like the S&P 500 allocate more capital to the largest companies, and when those companies outperform, the index mechanically tilts further toward them.
Read next Altman: OpenAI IPO 'Ill-Advised' in 2026 | AI ValuationsThe Nasdaq Composite, which is heavily weighted toward technology and growth names, has been the primary beneficiary. Its multi-year outperformance versus equal-weighted benchmarks illustrates how narrow this rally has been. When a handful of companies accounts for a disproportionate share of index gains, the market becomes more sensitive to their individual earnings revisions, valuation shifts, and regulatory exposure.
This concentration cuts both ways. It has amplified upside during the artificial-intelligence capital spending boom. It also means that any rotation out of high-multiple tech stocks—whether triggered by rate moves, earnings disappointments, or shifting sentiment—would exert disproportionate drag on headline index performance.
The Q4 Threat: Rising Rates and What They Could Do
The clearest risk to the streak heading into the fourth quarter is the trajectory of interest rates, and specifically the 10-year Treasury yield. The relationship between long-term yields and equity valuations is not incidental; it is mechanical.
A stock's value, in discounted cash flow terms, equals the present value of its future earnings. When the discount rate rises, that present value falls—and the effect is strongest for companies whose earnings are expected to arrive far in the future. High-multiple technology stocks derive a larger share of their valuation from terminal-value assumptions, which makes them especially rate-sensitive. This is why the Nasdaq typically underperforms the Dow Jones Industrial Average when the 10-year yield spikes.
The Federal Reserve's rate decisions sit at the center of this dynamic. Every hawkish surprise—a pause that markets read as a delay in cuts, a dot plot that signals fewer reductions than expected, or commentary emphasizing persistent inflation—feeds directly into the long end of the curve. A sustained move higher in the 10-year yield compresses price-to-earnings multiples across the growth complex, even if earnings estimates remain unchanged.
Consider the arithmetic. If a stock trades at 30 times forward earnings and the 10-year yield rises by 50 basis points, the theoretical fair multiple might compress to 27 or 28 times, all else equal. On a trillion-dollar market cap, that is a substantial drawdown driven purely by discount-rate mechanics, not by any deterioration in the business.
Parallels to the Late 1990s Bull Market
The late 1990s comparison is unavoidable, but it demands nuance. The 1995–1999 run was fueled by a genuine productivity narrative—the commercialization of the internet—combined with accommodative monetary conditions and a wave of retail investor enthusiasm. The current cycle shares the technology narrative and the retail participation, but the rate environment is inverted.
The Fed raised rates through much of the late 1990s, but from a low base and into an economy experiencing accelerating productivity growth. Today's starting point is different: policy rates sit well above their post-2008 norm, and the neutral rate itself may have shifted higher. That structural difference is why strategists at major investment banks have framed the current environment as one where valuation expansion, not just earnings growth, must carry the market—and valuation expansion is precisely what rising yields threaten.
The dot-com comparison also carries a cautionary tail. The streak that began in 1995 ended not with a whimper but with the 2000–2002 bear market, during which the Nasdaq fell roughly 78% peak-to-trough. No two cycles are identical, and today's largest technology companies are far more profitable than their 1999 predecessors. Still, the historical record argues against treating multi-year momentum as a permanent condition.
What Investors Should Watch Heading Into Q4
Several concrete indicators will determine whether the streak survives the fourth quarter.
First, the 10-year Treasury yield. A decisive break above recent ranges would pressure growth multiples and likely widen the performance gap between value and growth. Second, Fed communication. Market-implied rate paths, as reflected in futures pricing, shift quickly around FOMC meetings and inflation prints. Third, breadth. If gains remain concentrated in a handful of names, the index is more fragile than headline returns suggest.
Earnings revisions matter too. Q4 is when companies issue guidance for the following year, and any sign that AI-related capital expenditure is decelerating would hit the very names that have carried the index. Seasonality offers a mild tailwind—November and December have historically been positive months for equities—but seasonal patterns are weak signals relative to macroeconomic forces.
Investors should also watch credit spreads and volatility measures. Widening high-yield spreads often precede equity drawdowns, and a sustained rise in the VIX would signal that the market is repricing risk.
Can the Streak Survive? Scenarios for the Rest of 2026
Three plausible paths frame the fourth quarter.
In the base case, the Fed holds rates steady, inflation data cooperate, and the 10-year yield stays range-bound. Tech earnings meet expectations, breadth improves modestly, and both indexes finish the year with double-digit gains. The streak holds.
In a hawkish scenario, inflation proves stickier than expected, the Fed signals fewer cuts, and the 10-year yield rises sharply. High-multiple tech stocks de-rate, the Nasdaq gives back a meaningful portion of its year-to-date gains, and the S&P 500's double-digit advance narrows toward the threshold—or falls below it. The streak breaks.
In a risk-on scenario, rate uncertainty resolves to the downside, AI capital spending accelerates, and a broadening earnings recovery lifts cyclical sectors. The rally widens, and the streak not only survives but does so on firmer footing than the concentrated version that defined the first three quarters.
The honest answer is that no one knows which path prevails. What is knowable is that four straight years of stock market double-digit gains have left valuations elevated and positioning stretched, while the rate backdrop remains the single largest swing factor. Investors who understand why rising rates compress high-multiple tech valuations—rather than simply reacting to headlines—will be better positioned to navigate whatever the fourth quarter delivers.
Source: WSJ.com: Markets
