π° Hourly Briefing | 2026-08-18 10:00 CST
US 30-year Treasury yield rises to 5.321%, highest since mid-2007; Trump says US will not seek to extend Iran MOU; Nikkei 225 falls 1%, Hong Kong AI stocks plunge.
π Market Snapshot
| Asset | Latest | Change | % Change |
|---|---|---|---|
| Gold (XAUUSD) | 4407.59 | -8.95 | -0.20% |
| WTI Crude (USOIL) | 84.018 | -0.057 | -0.07% |
Gold pulled back slightly, opening at 4417.71 before dipping to around 4404.27 and stabilizing near 4407. Crude oil was nearly flat, trading in a narrow range around 84.
π₯ Key News This Hour
1. US 30-Year Treasury Yield Climbs to 5.321%, Highest Since Mid-2007
Long-end yields continue to rise, with the 30-year hitting a near 19-year high. This signal deserves close attention β rising long-term rates indicate the market is repricing long-term inflation and fiscal deficit expectations upward, putting sustained pressure on growth stock valuations.
2. Trump: US Will Not Seek to Extend Iran Memorandum of Understanding
Middle East geopolitical risk is heating up again. If the US-Iran MOU is not extended, it means the sanctions framework against Iran could tighten further, maintaining a risk premium on crude supply. Meanwhile, airstrikes were reported on a military airbase in Idlib, Syria β the Middle East tension shows no signs of easing.
3. Nikkei 225 Falls 1%, Japan 20-Year Bond Yield Rises to 3.835%
Japanese equities opened lower with the Nikkei down 1% intraday. Japan’s 20-year bond yield rose 2.5bp to 3.835%, resonating with the US long-end yield rally. The Bank of Japan’s policy path remains a key variable for Asian-Pacific markets.
4. Hong Kong “AI Dual Leaders” Plunge: Zhipu Down 10%+, MINIMAX Down 8%+
AI concept stocks suffered a sharp selloff in Hong Kong. After prior speculative run-ups, the market is reassessing the commercialization prospects and valuation levels of AI large model companies. The sharp declines in Zhipu (02513.HK) and MINIMAX (00100.HK) reflect a trend of capital withdrawing from high-valuation growth stocks.
5. PBOC Net Withdraws 95.8 Billion Yuan
The People’s Bank of China conducted 469.7 billion yuan in overnight reverse repo operations, with 565.5 billion yuan maturing, achieving a net withdrawal of 95.8 billion yuan. Liquidity is tightening marginally, consistent with the direction of rising long-term bond yields. A-share indices turned positive after opening lower, with the Shanghai Composite down 0.08% at 3979.49.
6. Wells Fargo Cuts Gold Price Target
Wells Fargo Investment Institute lowered its 2026 and 2027 gold price targets, citing pressure from high US real yields. Despite the reduced targets, the institution emphasized that Federal Reserve policy remains the core variable for gold’s trajectory. Gold is currently at $4,407, under modest pressure.
7. Pro Farmer Crop Tour: Corn and Soybean Yields Below Last Year
Pro Farmer tour Day 1 shows corn yields and soybean pod counts in Ohio and South Dakota below last year and below the 3-year average. South Dakota soybean pods at 945.98 (vs. 1188.45 last year), corn yield at 149.09 bu/acre (vs. 174.18 last year). The bumper harvest expectations may be falling apart, which could support agricultural prices.
8. BeiDa Pharmaceutical Hits 20% Limit Down
EyePoint Pharmaceuticals plunged 67% in US overnight trading after vorolanib wAMD Phase 3 trial failure. BeiDa Pharmaceutical, which holds Greater China rights, was limit-down. A single event but a reminder of the high-risk nature of biotech investing.
π§ Market Assessment
The US 30-year Treasury yield breaking above 5.32% to a near 19-year high is the most notable signal this hour.
Rising long-end rates reflect accelerating market repricing of fiscal deficit expansion and a higher long-term inflation anchor.
This trend exerts real pressure on US equity valuations, particularly rate-sensitive growth stocks and long-duration assets.
Trump’s stance on the Iran MOU indicates Middle East geopolitical risk has not dissipated, and crude oil prices retain upside risk.
The sharp pullback in Hong Kong AI concept stocks is worth noting β it could be an early signal of global capital rotating away from high-valuation AI names.
Gold is oscillating around $4,400; Wells Fargo cut its target but Fed policy remains the core variable. Short-term pressure from high real yields persists.
Pro Farmer tour data showing below-expected US crop yields could push agricultural prices higher and add to inflation pressures if the trend continues.
β° Upcoming Key Data
No major US economic data scheduled for release today (August 18).
Watch for US housing data (housing starts, existing home sales) and Fed official speeches later this week for potential market impact.