Yen Jumps on Record Japanese Bond Auction as Euro Finds Relief from French Unrest

The Japanese yen snapped a two-day slide on Tuesday, October 20, after Japan’s 20-year government bond auction drew the strongest demand on record. Bids worth 5.84 times the amount sold poured in — the highest bid-to-cover ratio since the bonds were first sold in 1987, up from 4.01 at the September sale and well above the 3.73 twelve-month average. Competitive bids totalled ¥3,139.0 billion against ¥537.1 billion accepted, and the “tail” — the gap between average and lowest-accepted prices — narrowed to 0.07 from 0.15, another sign of aggressive bidding. The 20-year yield fell as much as 6 basis points to 3.710% on the result, and the yen strengthened 0.3% to 158.1 per dollar.

“The record 20-year auction is a strong signal that sidelined cash is finally coming back,” said Masahiko Loo, senior fixed-income strategist at State Street Investment Management in Tokyo. He added that “JGBs are also starting to look like a relative haven from Europe’s political and fiscal volatility, particularly around France.” The context is dramatic: earlier this month the 20-year yield touched levels last seen in the mid-1990s and the 30-year yield hit an all-time high, as a global bond selloff, Middle East tensions and fiscal worries piled on. Investors have questioned how Prime Minister Sanae Takaichi will fund a planned sales-tax cut on food and soft drinks; she has pledged fiscal sustainability and careful management of bond issuance. Fukoku Mutual Life Insurance, the first life insurer to outline second-half plans, said it sees scope to shift more money from foreign bonds into yen bonds — and with Japanese investors having sold over 5 trillion yen of foreign bonds on a net basis in 2026, even a partial reversal of that flow would be a structural support for the yen.

The euro, meanwhile, found some relief. It rose 0.2% to $1.1231 after overnight curfews in several French cities brought a pause to violent cost-of-living protests, and the single currency steadied after sliding to $1.1113 last week — its lowest since May 2025. But the reprieve is fragile: France’s National Assembly votes on Tuesday on the revenue section of the 2027 budget, with the full bill due on November 17, and bond markets are still nervous. “The worries in France are not going away anytime soon,” said Tommy von Brömsen, FX strategist at Handelsbanken, adding that “the bearish view on France will stay for a while longer and there’s much more euro weakness to be priced in.” The oddity analysts keep flagging is that the euro keeps holding up while French bond spreads blow out — as Pepperstone’s Chris Weston put it, French sovereign risk is clearly priced into European equities, but traders aren’t yet treating it as a systemic European problem.

Sterling was the other winner of the day, rising 0.4% to $1.3350 after British labour-market data showed a resilient jobs market — the latest UK dataset to surprise to the upside. “The risk is that a resilient labour market gives the Bank of England both the room and the reason to raise interest rates again,” said Lale Akoner, global market strategist at eToro: “Sterling could benefit from rising rate expectations.” The US dollar index fell 0.2% to 101.75, near the bottom of October’s trading range. Commodity-linked currencies joined the bid: the Australian dollar rose 0.2% to $0.6996, the New Zealand dollar 0.5% to $0.5689, and the Canadian dollar 0.4% to 1.40761 — near a one-month high, unfazed by Alberta’s vote to remain in Canada. The yuan edged 0.1% higher to 6.6778 after China’s central bank kept its loan prime rates on hold, at 3.0% and 3.5%, exactly as expected.

What to watch next: Tuesday’s French budget vote could reopen the euro question within hours, Japan’s September inflation report lands on October 23, and the Bank of Japan meets on October 29–30 — markets price only a 6.2% chance of a hike, so Governor Kazuo Ueda’s press conference is the event, not the decision. One wildcard sits outside FX entirely: Brent crude is hovering above $110 a barrel, near a five-month high on the Middle East war, and as von Brömsen noted, a further jump in oil “would be dollar supportive.” In other words, the same energy shock that rattled bond markets is quietly buffering the dollar’s downside. Currency markets are running on politics and bond flows right now, not just rate charts — our forex section explains how yields and sovereign risk move exchange rates, and the free forex-tools page has pip and position-size calculators for sizing risk before you trade. (Not financial advice.)