Why Stock Markets Keep Reaching New Highs Despite Warning Signs
New York, Saturday, 8 August 2026.
Despite record-high stock valuations, analysts project markets will continue grinding higher following a major leverage reset in tech shares, though long-term bubble risks remain.
Market Resilience Amid Late-Cycle Volatility
As of the week of 2026-08-03 to 2026-08-07, both the S&P/TSX Composite Index and the U.S.-based S&P 500 Index surged to record highs, signaling robust performance despite broader economic uncertainties [1]. This recent activity follows a period of significant volatility in July 2026, where the S&P 500 remained unchanged for the month despite war re-escalation and potential Federal Reserve rate hikes [2]. Goldman Sachs Co-head of Global Banking and Markets Ashok Varadhan noted on 2026-08-05 that while July was difficult, market signals appear clearer entering August [2]. The resilience suggests that U.S. equities historically maintain robust performance even as a bull market reaches its mature stages [1].
Goldman Sachs’s Late-Cycle Outlook
Varadhan attributes the recent stability to a reset in market leverage, specifically noting that significant leverage in the AI trade was unwound during the week of 2026-07-27 to 2026-08-02 [2]. This unwinding potentially leads to a higher quality rally going forward, with Goldman Sachs projecting the market will grind higher through the end of 2026 [2]. However, Varadhan maintains that high levels of single stock versus index volatility dispersion are expected to persist through the year [2]. He identifies upcoming jobs reports and inflation readings as critical data points required to confirm economic resilience and productivity gains from AI [2].
Valuation Concerns and Economic Forecasts
Despite the optimism, current share prices are at some of the most expensive valuations on record when measured against long-term earnings, sales, or dividends, exceeding levels observed in 2021 [1]. Capital Economics projects the S&P 500 will rise from its current level of approximately 7,700 to 8,250 by 2026-12-31, representing a calculated increase of 7.143 percent before year-end [1]. However, this forecast is followed by an expected bursting of the AI bubble and a major downturn over the subsequent 12 months [1]. Bear markets typically result in a 20 per cent to 35 per cent loss of stock value, highlighting the risk for investors nearing retirement [1].
Strategic Shifts for Investors
In a note dated 2026-07-31, Goldman Sachs advised investors to rebalance portfolios toward real assets including infrastructure, prime real estate, energy, or gold [1]. Diversification into value stocks, dividend stocks, and foreign markets less focused on AI is recommended to safeguard recent capital gains [1]. Balanced portfolios, such as those from Vanguard Canada (VBAL-T) and iShares (XBAL-T), offer a 60/40 split between globally diversified stocks and bonds [1]. Alternatively, Berkshire Hathaway (BRK-B-N) is suggested as an old-school investment alternative due to significant cash reserves utilized to capitalize on future market weakness [1].