Global equity markets are at a critical juncture as they navigate a complex mix of geopolitical tensions, monetary policy shifts, and technological optimism. The first half of 2026 has been marked by significant volatility, primarily triggered by the US-Iran conflict, which echoed the market disruptions seen during the 2025 'Liberation Day' tariff announcements. Despite these shocks, major indices have demonstrated resilience, recovering losses and, in some cases, pushing towards new highs. The central question for the latter half of the year is whether this recovery can sustain a broader bullish trend across different regions or if underlying fragilities will lead to a period of heightened volatility and potential correction.

Identifying the Core Market Drivers

Equity markets are a primary barometer of global risk appetite. While specific regional factors can cause divergence, the overarching sentiment—be it bullish, bearish, or neutral—tends to dictate the direction of major stock indices. The first half of 2026 witnessed several potential sentiment reversals. Initially, key benchmarks like the S&P 500, FTSE 100, and Nikkei 225 were trending higher in a steady manner until the outbreak of US-Iran hostilities on February 28th.

The new conflict in the Middle East and the subsequent closure of the vital Strait of Hormuz triggered a sharp, shock-induced sell-off, compounded by tangible economic consequences. However, despite its global impact, the major index benchmarks experienced a technical pullback without entering a full bear market, typically defined by declines of 10% or 20% from peaks. Within 40 days of the initial attacks, a ceasefire was announced, eventually formalized into a 60-day memorandum of understanding to maintain peace during further negotiations. This paved the way for a recovery rally that not only recouped all losses but propelled markets even higher.

This pattern bears a striking resemblance to the events of approximately a year prior when the announcement of 'reciprocal tariffs' by the US administration led to a market downturn. Just as the S&P 500 neared bear market territory, the tariff measures were rescinded, allowing markets to rally back to record levels. The 2025 fundamental turbulence appeared to create a discounted entry point, with bulls subsequently re-entering to fuel a larger advance following the pandemic-induced crash of early 2020. A key concern now is how long the next leg up can persist without a corrective phase to provide an economic entry point for investors still grappling with fear of missing out.

Elevated US Stocks May Face a Period of Instability

Absent an exogenous catalyst to reignite speculative appetite, the fundamental backdrop for global capital markets remains challenging. The aftermath of the US-Iran conflict is far from settled. Even under the best-case scenario of ongoing negotiations, the near-total halt of traffic through the Strait of Hormuz for two months will have lasting repercussions. No favorable outcomes are likely from this period, only scenarios that are less severe than feared—such as a rapid disinflation that could temper the tightening responses from major central banks, whose policy paths typically weigh on equity performance.

Overall growth trends remain ambiguous, posing a greater risk of underperformance relative to stock prices sitting at or near historic highs. Similarly, trade relations stay tense, with the US seeking retaliation for perceived unfair practices and efforts to bypass the US dollar continuing. The last bastion of pure enthusiasm seems to be the promise of Artificial Intelligence. This new technology and its economic impact are being compared to the internet revolution at the turn of the century or the industrial revolution a century ago.

Amid uncertainty about the scale of this innovation wave, there is room for speculative gains to extend further. In 2025 and 2026, value seemed largely derived from the massive capital expenditures by mega-cap tech companies racing to lead the field. This optimistic interpretation had shifted by the end of the second quarter towards a scrutiny of real value. While new large language model releases and headlines about large corporations integrating AI for efficiency gains are inevitable, the market may grow more skeptical of their value impact. Following the SpaceX IPO, if major AI players like OpenAI and Anthropic delay their public listings, it could be interpreted as a sign that this bullish wave has peaked, at least in the short term.

Accounting for Seasonality and Broader Cycles

Shifting focus from themes to 'market conditions,' we are entering a period in the traditional calendar year where seasonal expectations might offer some respite for fundamental scrutiny. Historically, we are moving into the notorious 'summer doldrums,' where trading volume tends to contract and volatility hits yearly lows, as benchmarked by the S&P 500. While market performance averages exist, sample deviations can vary widely. Activity levels are more reliable. If the Northern Hemisphere summer months follow the norm of vacations and family time, this could bolster resistance against severe risk-off declines through shallower markets or outright suppression of less liquid positions. However, when market participants and volatility return by late September, all possibilities are on the table.

On a longer and less cyclical time frame, it is worth considering where we might be in a full market cycle. There is broad debate on this, but the consensus might place us either in the traditional cycle's accumulation/growth phase or the maturity/euphoria phase. Skeptics could label our current situation as late-stage euphoria fueled by the AI boom. For true believers in the technology, we are only beginning to realize its value impact on the economy and markets. Regardless of how incredible AI ultimately proves, it is unlikely to sustain a pace of development and progress that matches the staggering gains in US stock indices. The view here is that we are in the mature phase of the cycle, but a genuine turning point likely requires a tangible fundamental stressor, not merely disappointment that value addition is less spectacular than current valuations and spending imply.

The Americas: Nasdaq 100 Leads the Technical Advance

In the second quarter, the speculative rhythm seemed to shift, with the Philadelphia Semiconductor Index (SOX) replacing more familiar banners like the 'Magnificent Seven' or the Nasdaq 100 as the representative leader of the AI trade. The Nasdaq 100 is still considered a more anchored benchmark for AI, technology, and the US market. It is also experiencing a significant volatility premium—the spread between the VXN and VIX is at its widest in over two decades. If the index can set a new record high, it would likely be a slow grind higher, similar to the post-'Liberation Day' reversals of 2024 or 2025. Conversely, a break below 28,000 and then 26,000—especially without an extreme one-sided catalyst—could have a deeper psychological impact on traders.

European Markets Resemble US Benchmarks But Are More Congested

From a chart perspective, European indices seem to share the same broad structure as their US counterparts. However, enthusiasm appears notably restrained relative to their Western peers. While the S&P 500 and Nasdaq 100 pushed to new all-time highs in the second quarter, the FTSE 100, Germany's DAX 40, and France's CAC 40 conspicuously failed to do so. These major indices have formed congestion patterns, showing greater uncertainty about future direction. An ultimate breakout to the upside may be the primary theme, but resistance will not be ignored. For the FTSE 100 entering the third quarter, a break above 11,000 or below 10,000 will be the primary directional task, though the dominant trend remains bullish.

Nikkei 225's Rally Contrasts with a Weakening Yen

Among major Asia-Pacific equity indices, the Nikkei 225 warrants close attention as we move into the second half of 2026. The momentum behind the Japanese index's rise has been extraordinary. In fact, during its June advance, the market traded more than 30% above its 100-day moving average. This is the largest accelerated deviation from that long-term benchmark in 13 years—a peak that ultimately led to a bearish reversal within mere weeks. Extreme drivers have contributed to this extreme move, such as the yen's rapid decline to multi-decade lows, and these influences are likely as transient as the chart's pace. The question is whether their resolution will lead to stabilization at high levels or a necessary correction.

South Korea's KOSPI: Asia's AI Beacon, for Better or Worse

Another index to watch closely is South Korea's KOSPI. While Japan's Nikkei 225 has shown strong performance and represents one of the world's largest economies, the KOSPI has significantly outperformed it over the past year. The index's heavy technology concentration has driven its year-over-year performance to a staggering gain of approximately 170%, compared to around 75% for its Japanese counterpart. This move is more extreme and has pushed the 'acceleration'—the spot price's position relative to the 100-day moving average—to heights not seen since 1998. If this index begins a genuine reversal, it could signal a shift for broader markets.