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AXIOMA ROOF™ SCORE HIGHLIGHTS

WEEK OF MAY 18, 2026

Potential triggers for sentiment-driven market moves this week

  • US: FOMC minutes, PMIs and consumer confidence survey data. Nvidia earnings.
  • Europe: Eurozone PMI data. UK inflation, unemployment, and retail sales data.
  • APAC: China industrial output, retail sales, unemployment, housing prices, and fixed investment. Japan Q1 GDP.
  • Global: With no help from China, it’s decision time for the US in Hormuz – escalate or retreat?

Insights from last week's changes in investor sentiment:

American voters were promised peace in Ukraine and no more foreign wars. So far, the administration has managed neither. It has been unable to pour oil on troubled waters in Ukraine, or water on troubled oil in Hormuz after its own foreign policy helped set it alight. The promise of peace and stability abroad was perhaps too lofty for contentment and the approach too chaotic for achievement. On the narrower test of regime change, the administration may now be 0-for-3: Venezuela, Iran, and Cuba. Meanwhile, the costs at home are mounting.

Last week was dominated by the first of three planned Trump-Xi meetings. With the wars in Ukraine and Iran still imposing heavy economic costs, investors feared the administration’s doctrine of Peace through Strength could slide into Peace through Compromise if Chinese help came at the price of Taiwan. Trump wanted Xi’s help on Iran; markets wanted reassurance that help would not come with strategic concessions. 

Xi, by contrast, was always likely to press the Taiwan question in a way which could be neither answered nor dodged and which, whether said for effect or not, got its effect just the same. In the end, neither side got what it wanted: Trump did not secure meaningful Chinese help on Iran, and Xi did not obtain U.S. indifference on Taiwan. For investors, that was enough. They were not looking for a breakthrough; they were looking to avoid a costly bargain. In that sense, the status quo was the best outcome.

Against that backdrop, the geopolitical chessboard is entering the endgame. The U.S. may have picked off a pawn in Maduro, but it now finds itself in check in Hormuz. From here, Washington must either press the position or concede the initiative. The chess clock is ticking: downside risks to growth and upside risks to inflation are rising, limiting the scope for delay. That macro bind is already visible in the second-quarter 2026 survey of professional forecasters, which shows the near-term outlook for the U.S. economy deteriorating relative to three months ago and expects Q2 CPI at 6.0%, up from 2.7% in the previous survey. It also leaves the Fed facing a more awkward handoff, following the highest number of dissents on a policy statement since the early 1990s.

That handoff now looks less disruptive than feared. Kevin Warsh was confirmed as the next Fed Chair and will succeed Jerome Powell when Powell’s term as chair ends on Friday. But because Powell will remain on the Board as a governor, and Lisa Cook also remains in place pending the Supreme Court’s ruling in Trump v Cook, Warsh effectively takes Miran’s seat rather than creating a new vacancy. That reduces the immediate risk to Fed independence that investors had been pricing. Since last year, markets had feared the administration could secure three seats on the Board; for now, it gets only one. The conductor may be changing, but the orchestra is still playing from the same score. With inflation still running hot, investors will remain alert to any sign the music is no longer following the page. A ruling for Trump could quickly reopen that risk.

The combination of status quo in Taiwan, a resilient Fed, and no new weekend escalation helped lift U.S. investor sentiment to its highest level of the year so far. Investors in three markets—Asia ex-Japan, China, and global emerging markets—remain firmly bearish. Europe stayed negative, while UK investors recovered from the previous week’s election shock and turned positive. Elsewhere, sentiment held neutral.

But here we are again on Monday morning, wits renewed, armpits refreshed, asking what geopolitical surprise the week has in store for markets. The new normal is ill-suited to the Buffett investment style and requires the daily suspension of any awareness of the long game. Instead, investors focus their energy on the temporary, the stopgap, and the impulsive. They return to the now-familiar contrarian trade, because the long game is no longer practical in a market where return paths are harder to predict and volatility remains tied to the next policy impulse.

Note: green background = bullish, red background = bearish

Changes to investor sentiment over the past 180 days for the ten markets we follow: 

How to Interpret These Charts:

Top Charts:

The top charts illustrate the ROOF ratio, which represents investor sentiment. This ratio is depicted in green on the left axis, while the cumulative returns of the underlying market are shown in black on the right axis. Key reference lines include:

  • A horizontal red line at -0.5 (left axis), marking the threshold between negative sentiment (-0.2 to -0.5) and bearish sentiment (< -0.5).
  • A horizontal blue line at +0.5 (left axis), indicating the boundary between positive sentiment (+0.2 to +0.5) and bullish sentiment (> +0.5).
  • A horizontal grey line at 0.0 (left axis), around which sentiment is considered neutral (-0.2 to +0.2).

Bottom Charts:

The bottom charts display the levels of risk tolerance (green line) and risk aversion (red line) within the market, representing investors' demand and supply for risk, respectively. Key insights include:

  • When risk tolerance (green line) exceeds risk aversion (red line), more investors are willing to buy risk assets than there are investors willing to sell them at the current price. This scenario forces risk-tolerant investors to offer a premium to entice more risk-averse investors to trade, thereby driving markets upward.
  • Conversely, when risk aversion (red line) surpasses risk tolerance (green line), the market dynamics reverse.

The net balance between risk tolerance and risk aversion levels is used to compute the ROOF ratio shown in the top charts, reflecting the sentiment of the average investor in the market.

Blue Shaded Zone:

The blue shaded zone between levels 3 and 4 for both indicators signifies a reasonable balance between the supply and demand for risk in the market. When both lines remain within this blue zone, the market is considered ‘emotionally’ stable. However, when both lines move outside this zone, the significant imbalance in demand and supply for risk can lead to overreactions to unexpected news or risk events.

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