Nikkei Hits Record as Yen Strengthens After Takaichi Win — FX Reaction

Market snapshot

Japan’s Nikkei 225 jumped to a fresh record after Prime Minister Sanae Takaichi’s Liberal Democratic Party (LDP) secured a lower-house supermajority. Key market moves at the open and close:

• Nikkei 225 surpassed the 56,000 level at the start of trading, pushed through 57,000 intraday and closed up 3.9% at 56,363 points.
• The index has risen roughly 68% since April 2025, reflecting a sustained equity rally in advance of the election outcome.
• The yen strengthened immediately after the result, but USD/JPY remained under pressure from intervention risk with levels moving back into the high 150s.

These moves reflect a classic risk-on reaction to the prospect of large fiscal stimulus paired with cross-market positioning ahead of potential currency intervention.

Political catalyst and fiscal math

Takaichi’s victory gives the LDP an absolute majority and, with its coalition partner, a two-thirds supermajority in the lower house. That will ease passage of a 21tn yen stimulus package (about £99bn) and a proposal to suspend the 8% sales tax on food for two years. The combination of large-scale fiscal expansion and tax relief explains both the equity surge and the rise in government bond yields as markets price in additional Japanese borrowing.

Clear, quotable statement: Japan’s election result materially increases the probability of significant fiscal expansion and a return to sizeable bond issuance by the government.

FX: yen, intervention risk and market positioning

• Short-term: The yen initially strengthened on the political certainty, but market commentary flagged renewed yen-selling pressure once participants priced the stimulus and looser fiscal settings.
• Intervention risk: Senior Japanese officials signalled close monitoring of rapid currency moves. The memorandum of understanding with the US was cited publicly as providing tools for “decisive measures” against moves “out of line with fundamentals.” That threat has so far capped further yen weakness, particularly as USD/JPY climbed back into the high 150.00s.

Quotable: Intervention risk is the key control on further yen depreciation despite the market’s baseline read of looser fiscal policy under the new government.

Bonds and global yield implications

Expect higher Japanese government bond (JGB) issuance as fiscal plans are enacted. Global yields are responding:

• Domestic: Japan’s bond yields rose as markets began to price additional issuance and the potential domestically-funded stimulus.
• International spillovers: The prospect of more Japanese borrowing has contributed to higher global sovereign yields and pressured UK gilts, even amid separate domestic UK political noise.

Practical read for fixed-income traders: anticipate increased issuance supply from Japan and monitor cross-border flows into JGBs and core global bonds for yield repricing.

Equities: why the Nikkei surged

Fiscal stimulus is typically equity-supportive, especially for domestically focused sectors and firms positioned to benefit from corporate investment initiatives. Specific equity market signals:

• Large broad-based gains led to a near 4% daily rise in the Nikkei, building on the multi-month rally.
• Investors are pricing an extended period of fiscal support aimed at boosting domestic demand and corporate capex, particularly in tech and manufacturing supply chains.

Actionable insight: equity strategists should review exposure to domestically driven cyclicals and tech-related exporters that can benefit from both stimulus and a managed currency outcome.

Corporate headline movers

• InPost: Shares jumped c.13.5% after a consortium led by FedEx and private equity offered €15.60 per share for a takeover valuing the company at about €7.8bn. Plans include significant expansion of locker points in the UK and Europe.
• Warner Bros Discovery (WBD): The board backed an $82.7bn cash offer from Netflix even as rival Paramount has tabled a $108.4bn bid. WBD is launching HBO Max in the UK & Ireland with a Basic with Ads tier at £4.99 and a Standard with Ads tier at £5.99.
• NatWest: Shares fell over 5% after the bank agreed to acquire Evelyn Partners for £2.7bn; Evelyn Partners manages about £69bn of client assets.
• Greggs: The FTSE 250-listed bakery chain was among the biggest fallers, down c.4.2% on concerns that weight-loss drugs could dent food-on-the-go demand.

These corporate moves underline how political and macro shifts can quickly reprice sector and single-name risk.

Eurozone confidence and regional context

Investor sentiment in the eurozone is improving: the Sentix investor confidence index rose to 4.2 in February from -1.8 the prior month, signalling a potential end to the region’s recessionary dynamics. For FX and cross-asset traders, this supports demand for risk assets in Europe and offers a counterpoint to Japan-driven volatility.

Trading checklist for professional investors

• Monitor USD/JPY around the high 150s for signs of renewed intervention rhetoric or execution.
• Watch JGB issuance calendars and Japanese bond yields for supply-driven moves that could reprice global core yields.
• Reassess equity allocations in Japan: consider overweighting domestically oriented cyclicals and tech beneficiaries of stimulus.
• Track cross-asset flows: hedging pressure has shown up in euro-sterling options markets and global FX options volumes.

Outlook

The immediate outlook is for continued market volatility as the new Japanese government moves to implement stimulus and as counterparties test the limits of currency intervention. For institutional investors and traders, the core themes are predictable: larger Japanese fiscal deficits, constrained yen depreciation due to intervention risk, and ripple effects into global yields and risk assets.

Clear closing line: Markets are pricing a new policy regime in Japan — larger fiscal stimulus with active FX monitoring — and that combination will be the dominant driver of Asian and global market flows in the near term.