Will the Stock Market Rise in 2026? Investors Who Ignore This Historical Pattern Do So at Their Own Risk.

Historical patterns and recent data suggest equities are more likely than not to post gains in 2026 after three strong years: the S&P 500 is up about 17% year-to-date in 2025 and, historically, the market rises two out of every three years with bear markets relatively short-lived (Vanguard data cited). The article highlights Sandisk (SNDK) — spun out from Western Digital in February and added to the S&P 500 in November — as a contrarian buy despite a >500% YTD run because fiscal 2025 revenue rose 10%, fiscal Q1 revenue jumped 23% YoY, management expects Q2 growth >40%, and accelerating hyperscaler/data-center demand should support margins and further gains. The piece cautions that patterns aren’t guarantees but argues investors are generally better served staying invested rather than trying to time a crash, even as risks remain.

Analysis

The S&P 500 is on pace for a third consecutive above-average year in 2025, rising roughly 17% year-to-date, versus its 50-year average annual gain of about 10%; the article cites a historical pattern that equities rise two out of every three years, which supports a probability-weighted case for continued gains in 2026. Vanguard data referenced notes bear markets (>=20% declines) average about 15 months while 10%–20% pullbacks typically last three to four months, implying drawdowns have historically been shorter and less frequent than multi-year bull runs.

Sandisk (SNDK) is highlighted as the 2025 top performer after its February spin-out from Western Digital and S&P 500 inclusion in November; the stock is up more than 500% year-to-date while fiscal 2025 revenue rose 10%, fiscal Q1 revenue surged 23% year-over-year, and management forecasts Q2 growth above 40%. The company is filling large hyperscaler data-center orders, which the article identifies as a sustaining tailwind that could support margins and further revenue acceleration into 2026.

The piece notes a historical tendency for the prior year’s top-performing stock to outperform the index the following year roughly 80% of the time (citing Tesla, Devon Energy, Occidental, Nvidia, Palantir examples), but it also cautions patterns are not guarantees and highlights that Motley Fool’s own Stock Advisor did not include Sandisk in its top-10 picks; disclosure shows the author has no position and Motley Fool holds stakes in several other named tickers.

Key Decisions for Investors

• Maintain core equity exposure given the historical 2-in-3 years up pattern and the S&P 500's strong YTD performance, but size risk to an investor's time horizon and drawdown tolerance
• For Sandisk, consider a phased entry (dollar-cost averaging) or a modest position rather than full allocation given >500% YTD gains, while monitoring Q2 delivery versus management's >40% growth guide and margin expansion from hyperscaler demand
• Use active risk management: set position limits or hedges (options or stops) and watch leading indicators—hyperscaler order cadence, gross-margin trends, and any signs of prolonged market stress consistent with Vanguard bear-duration data