Asia Stocks Slide as Global Bond Yields Hit Multi-year Highs

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By Nandinee Keluskar

Nandinee Keluskar is an independent financial journalist.

August 19, 2026 at 2:22 AM IST

Global Mood: Risk- off
Drivers: US-Iran standoff, Global bond selloff

Asian markets turned sharply risk-off Wednesday as a global bond selloff pushed long-term yields to multi-year highs, raising concerns over equity valuations and tighter financial conditions. South Korea’s Kospi plunged 5.89%, while Japan’s Nikkei fell 1.04% and Australia’s ASX 200 declined 0.50%. The US 30-year Treasury yield reached a 19-year high, while Japanese, German and French long-term yields also climbed to multi-year peaks. Higher borrowing costs weighed particularly on technology shares, although expectations of resilient economic growth and corporate earnings offered some cushion.

Geopolitical risks added to the pressure as the US-Iran standoff hardened, with Washington denying active talks and Tehran maintaining demands for the reopening of the Strait of Hormuz. Brent crude settled above $91 a barrel, reinforcing inflation concerns. Renewed tensions involving Israel and Turkey in Syria and escalating Russia-Ukraine attacks further weakened risk appetite. Overall, markets are facing a combination of rising yields, elevated oil prices and intensifying geopolitical uncertainty.

THE BIG STORY
The US-Iran standoff hardened further Tuesday as Trump declared no talks were taking place or scheduled, directly contradicting his own envoy Kushner who had described negotiations as "more robust than ever" the day before. Iran's top negotiator reiterated Hormuz would stay shut until the US lifted its port blockade, oil sanctions and military threats, while the UAE suspended all trade and financial transactions with Iran after reporting two Iranian ballistic missiles launched toward maritime traffic in the strait — the first such incident since May. A vessel was struck by an unknown projectile transiting Hormuz, leaving one crew casualty. Stock markets fell and borrowing costs for major economies hit multi-decade highs as markets priced in a prolonged conflict, with Brent settling just above $91. Iran said it remained open to dialogue but would not confuse negotiations with surrender, while internal Iranian officials privately acknowledged growing concern that further economic punishment could reignite domestic unrest.

Israel bombed the Abu al-Duhur airbase in northwest Syria near Aleppo in eight strikes on Tuesday, drawing sharp condemnation from Turkey, which has troops training Syria's new army, and criticism from US envoy Tom Barrack who called it an "unnecessary escalation." Netanyahu's office said Syria was on the verge of violating a security understanding by allowing Turkish military deployment at the base — a significant new friction point between Israel and Turkey, both active in Syria and bound by increasingly strained relations. In Ukraine, Russia killed 10 civilians at a busy village intersection in Kharkiv's Pechenihy, striking a post office, cafe and shops with cruise missiles in one of the war's starkest civilian attacks in recent weeks, as Ukraine simultaneously launched 620 drones at Moscow in one of its largest strikes on the capital.

Data Spotlight
US housing starts dropped 12.4% in July to a seasonally adjusted annual rate of 1.239 million, well below expectations of 1.35 million and approaching the six-year low hit two months prior. Multi-unit starts fell 15.6% and single-family starts dropped 9.9%, with declines across the Midwest, South and West only partly offset by a 17.1% gain in the Northeast.

US pending home sales fell 2.3% in July, a second consecutive monthly decline and against expectations of a 0.3% rise, with contract signings falling across all four regions. NAR's chief economist noted pending contracts remain 30% below pre-pandemic 2019 levels, with elevated mortgage rates and record home prices continuing to deter buyers.

US import prices fell 0.4% in July, the largest monthly decline since May 2025 and below expectations of a 0.1% rise, as fuel import prices dropped 7.2% on lower petroleum costs. Nonfuel import prices rose 0.4%, and year-on-year import prices remained elevated at 5.9%.

US industrial production rose 0.2% in July, slightly below forecasts of 0.3%, as manufacturing output gained 0.2% and mining grew 1.3%. Capacity utilisation edged up to 76.3%, still 3.1 percentage points below its long-run average.

Takeaway: The US housing market continued to deteriorate sharply in July, with starts nearing six-year lows and pending sales falling for a second month, as affordability pressures show no sign of easing. Easing import fuel prices offer some pipeline inflation relief, though industrial output underperforming expectations points to a broader loss of economic momentum.

WHAT HAPPENED OVERNIGHT

US stocks fall as surging bond yields and chip selloff trigger domino effect from Iran tensions

The Dow fell 0.22%, S&P 500 lost 0.69%, and Nasdaq dropped 1.33%, marking the biggest daily decline for both since July 29, as fading West Asia peace hopes drove oil higher and pushed bond yields to multi-year peaks.
The Philadelphia Semiconductor Index tumbled 5%, with Micron falling 7% after rising 18% in the prior five sessions, SanDisk down 9%, Western Digital down 7.4%, and Nvidia slipping 2.3%.
Investors rotated into defensive sectors, with healthcare gaining 1.6% and consumer staples rising 1.1%, while energy led all sectors with a 1.8% gain on oil price support.
Iran threatened to shift to a "fully offensive" military posture while Washington ruled out extending the ceasefire deal, with oil settling up 0.5% after paring earlier gains.
FOMC minutes due Wednesday and Warsh's Jackson Hole speech are the key upcoming policy catalysts, with Nvidia's quarterly results the next major test for the AI trade.

US Treasury yields rise toward 4.75%, the highest in 20 months, as credit supply surge and inflation risks extend long-end selloff

AI companies issuing an estimated $1.5 trillion in bonds this year added significant dollar-denominated fixed-income supply, amplifying concerns over accelerating deficit spending across G10 economies and lifting term premia estimates globally.
Trump signalled no urgency to end the Iranian tanker blockade, keeping energy prices elevated and sustaining inflation pressure on Treasuries.
Warsh's signals that rate hikes may not be his preferred inflation tool continued to fuel concerns over Fed complacency, compounding the long-end selloff.

Dollar holds near two-month lows as weak US data trims Fed rate hike expectations

The dollar index hovered at 99.5 as last week's soft retail sales, consumer sentiment, and inflation data led markets to fully price out a year-end rate hike, a sharp shift from just a week ago.
September is now widely expected to be a hold, with investors awaiting FOMC minutes and Warsh's Jackson Hole remarks for further policy direction.
Traders remained wary of inflation risks as Trump said he was not interested in extending the Iran interim deal, keeping energy price concerns elevated despite the dollar's weakness.

Oil settles at three-week high as Iran adopts offensive stance and Hormuz closure hardens

Brent settled at $91.02/bbl, up 0.17%, and WTI at $84.94, up 0.52%, their highest closes since July 24, as Iran said the strait would remain closed until the US meets the conditions of the interim deal.
Trump said no talks with Iran are taking place or scheduled, while top Iranian negotiator Qalibaf reiterated Hormuz will stay closed until the US fulfils its June MOU commitments.
Iran threatened to shift to a "fully offensive" military posture as diplomacy stalled, while Trump threatened to bomb Oman after it engaged in separate strait management talks with Tehran.
The UAE said it detected two Iranian ballistic missiles launched against the country, while a vessel was struck by an unknown projectile transiting out of Hormuz, causing engine damage and a crew casualty.
Houthis launched missiles at a Saudi military ship and four escorts in the Red Sea, extending the multi-theatre supply disruption narrative.
Saudi Aramco resumed oil loadings from inside the strait and is offering cargoes via ship-to-ship transfers off Fujairah, while two Chinese shipping giants began collecting oil cargoes outside the Gulf to avoid chokepoints.
Vessel traffic through Hormuz remains in single digits, though covert dark shipments are providing more supply buffering than markets expected, limiting further price upside.

Day’s Ledger*

Economic Data

UK July CPI
Eurozone July CPI
US weekly Crude Oil Inventories

Corporate Actions

Aditya Infotech board to consider fund raising options
Wheels India board to consider fund raising options
Ducon Infratechnologies board to consider fund raising options
GP Petroleums board to consider fund raising options

Policy

RBI MPC Meeting Minutes
US FOMC Meeting Minutes

Tickers to Watch

BHARAT PETROLEUM CORPORATION board approves fundraising of up to 50 billion rupees through secured or unsecured redeemable non-convertible debentures in up to 10 tranches over one year.
POONAWALLA FINCORP Finance Committee approves issuance of unsecured Tier II NCDs of up to 2 billion rupees through private placement, comprising a 1.5 billion rupees base issue and a 0.5 billion rupees greenshoe option.
SWIGGY shareholders approve a cap of up to 49.5% on aggregate foreign ownership in the company.
CUPID promoter Aditya Kumar Halwasiya acquires 803,000 shares, or 0.06% stake, through open-market purchases, taking promoter holding to 46.40%.
HINDUSTAN CONSTRUCTION COMPANY shareholders authorise the company to raise up to 8 billion rupees through equity or equity-linked securities via QIP, preferential allotment, rights issue or a combination of these routes.
EICHER MOTORS arm Royal Enfield launches the Classic 350 Gorkha Edition in India at 210,684 rupees ex-showroom, with bookings opening immediately, alongside a Gorkha-inspired apparel collection.
BIRLA CORPORATION redeems 800 million rupees of listed NCDs on their scheduled maturity date, along with the applicable interest.
ONGC commissions gas evacuation facilities at Khoraghat GGS-1 in Assam, enabling surplus gas from the Upper Assam Shelf to be processed and evacuated through the North East Gas Grid, with capacity to utilise 100,000 SCM/day from the Jorhat asset.
PC JEWELLER repays all outstanding debt of another consortium bank, taking the number of fully repaid banks to eight of 14, while more than 96% of the remaining debt has also been discharged.

Must Read

(*Compiled from various media sources)

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