70,683.98Nikkei 225 · Oct. 6 close · second straight rise, above 70,000 for first time in 3 months (+737.12, +1.05%)

DailyDrop.

¥158.10Dollar-yen · Oct. 6, 5 p.m. Tokyo · yen 45 sen weaker on the day (Nikkei: ¥158.12-14)
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, TUE., OCT. 6, 2026No. 2 · 6:00 p.m. JST6 p.m. JST
日経平均70,683.98▲1.05%10/6TOPIX—ドル円158.10▲0.45円10/6S&P 5007,773.80▲0.67%10/5WTI$89.43▼1.84%10/5金$4,156.80▼0.13%10/5
Economy · MarketsPress ✓ 6 outlets · figures attributed to Nikkei, Kyodo and Jiji

Nikkei closes above 70,000 for first time in three months; yen slides into the 158 range

It closed at 70,683.98, up 737 points. Gains in U.S. tech stocks lifted AI and chip shares. At 5 p.m. the yen stood around ¥158.10, 45 sen weaker than the day before. A report on the public pension fund's investments and fading hopes of an early Bank of Japan rate hike drove yen selling

The Nikkei Stock Average posted a second straight gain in Tokyo on Oct. 6, closing at 70,683.98, up 737.12 points, or 1.05%. It was the first close above 70,000 since July 1, about three months ago. Following gains in chip and other tech stocks in New York the day before, buyers went for AI and chip-related names such as Advantest and TDK. The Nikkei newspaper reported that Advantest hit an all-time high for a second day running. Helped by the weaker yen, exporters such as Toyota Motor also rose. In the morning session the index was up only 134 points at 70,081.53, and some chip stocks saw profit-taking, but gains widened in the afternoon. Reuters cited calmer oil prices and buying on earnings hopes ahead of reporting season. The Nikkei newspaper described it as buying in advance of an “earnings-driven market” that prices in better-than-expected results. The previous close, on Oct. 5, was 69,946.86, and the index had briefly regained 70,000 during trading that day too (Kyodo). The index first closed above 70,000 on June 18, and after July 1 it had stayed below that level at the close. After the summer correction, it took about three months to win back the milestone.

At 5 p.m. the yen traded at ¥158.10-11 to the dollar (Jiji Press), 45 sen weaker than at the same time the day before. The Nikkei reported ¥158.12-14. Toward midday, a report about how the Government Pension Investment Fund (GPIF) invests deflated hopes that more money would flow into yen assets, and the yen was sold. At noon it stood at ¥158.01-03, 36 sen weaker than at 5 p.m. the previous day (Nikkei). A view also spread that the Bank of Japan will not hurry to raise rates at its Oct. 29-30 monetary policy meeting. Kyodo News said rising U.S. long-term rates had renewed attention to the U.S.-Japan interest rate gap, and that wariness about currency intervention by the government and the BOJ remains. The record close is 72,366.34, set on June 25, still about 1,680 points higher. Stocks rose and the yen fell on the same day because the market keeps reading a weak yen as a boost to exporters' profits, and that view supports buying. But a weak yen also weighs on households through import prices. The substance of the GPIF report has not been confirmed by any formal announcement from the government or the fund. The yen's course is likely to swing on speculation before the BOJ meeting and on whether the report is confirmed.

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By the numbers
737 pointsThe Nikkei's gain. Up 134 in the morning, wider in the afternoon
45 senDollar-yen change on the day (5 p.m., Jiji). The 158 range is the weak-yen side
1,682 pointsLeft to the record close (June 25, 72,366)
ScienceSource ✓ Nobel Foundation announcement · Press ✓ 5 outlets · announced after 6:45 p.m. Japan time

Physics prize goes to Halzen, who caught “ghost particles” in Antarctic ice — a rare sole laureate

The Royal Swedish Academy of Sciences announced on Oct. 6 that the 2026 Nobel Prize in Physics goes to Francis Halzen of the University of Wisconsin-Madison. He was born in Belgium. The citation honors “decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.” In 1988, Halzen proposed that the thick, clear ice at the South Pole could serve as a detector for neutrinos arriving from space. When a neutrino strikes an atomic nucleus in the ice, it gives off a faint flash of light. The observatory captures that light with 5,160 optical sensors buried in about one cubic kilometer of ice. It made the first observations of high-energy neutrinos from distant galaxies and was credited with opening a new kind of astronomy. Hundreds of people helped build it, which makes this a rare sole award in recent years. Halzen said by phone that it was “a big surprise.” A group from Chiba University in Japan has taken part since construction began and has worked on data analysis. The prize is 12 million Swedish kronor, and the ceremony will be held in Stockholm on Dec. 10. In neutrino research, Masatoshi Koshiba (小柴昌俊) won the physics prize in 2002 and Takaaki Kajita (梶田隆章) in 2015. As with the medicine prize the day before, no Japanese laureate was named this year.

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Word of the day
NeutrinoPHYSICS

An elementary particle with no electric charge and extremely little mass. It barely interacts with other matter and passes straight through the Earth, which is why it is called a “ghost particle.” Unlike light or radio waves, it is not bent along the way, so tracing the direction it came from points to the object that produced it. In 2015, Takaaki Kajita won a Nobel Prize for showing that this particle has mass.

Politics · OkinawaPress ✓ 4 outlets · remarks attributed to speakers

Naha assembly unanimously protests killing blamed on U.S. Marine; governor to seek lighter base burden from prime minister tomorrow

After a 39-year-old woman was killed at a hotel in Naha and her wallet and other items were taken, the Naha city assembly on Oct. 6 unanimously passed a protest resolution and a statement of opinion calling for steps to prevent a recurrence and a sweeping revision of the U.S.-Japan Status of Forces Agreement. Okinawa prefectural police on Oct. 4 arrested a 20-year-old Marine lance corporal based at U.S. Marine Corps Air Station Futenma on suspicion of robbery-murder, and he was sent to prosecutors on Oct. 5. According to the Ryukyu Shimpo, he denies the allegation. On the night of Oct. 4, an emergency rally was held at the Kenmin Hiroba plaza in Naha, where about 160 people observed a moment of silence for the woman. Such assembly resolutions have followed one incident after another, and this one again passed with ruling and opposition members alike.

Governor Genta Koja (古謝玄太) told reporters at the prefectural office on Oct. 6 that at a meeting with Prime Minister Sanae Takaichi (高市早苗), being arranged for Oct. 7, he would ask for a lighter burden from the U.S. bases concentrated in the prefecture. On Oct. 5 he summoned the director of the Okinawa Defense Bureau and the Foreign Ministry's ambassador for Okinawa to the prefectural office to protest, criticizing U.S. military discipline and troop training as “not functioning at all.” On Oct. 4, U.S. Ambassador to Japan Glass called him to offer condolences and pledge full cooperation with the investigation, and the governor protested during that call. Foreign Minister Toshimitsu Motegi (茂木敏充) also summoned Glass to the Foreign Ministry on Oct. 4 and called the case “extremely regrettable,” and Defense Minister Shinjiro Koizumi (小泉進次郎) asked the U.S. side to tighten troop training. The focus is how far the governor, who accepts the Henoko relocation and has worked in step with the government, will push his demands.

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Society · TechnologyPress ✓ 4 outlets · figures from each company

Up to 940,000 records at a GMO survey site, Rakuten Drive files exposed for eight months: hacking disclosures keep coming

GMO Research & AI, part of GMO Internet Group, said its survey site infoQ suffered unauthorized access and that personal data on up to 948,498 members may have been taken. That is every record it holds, including names, addresses, phone numbers, email addresses, birth dates and encrypted passwords. The attackers reportedly exploited a software vulnerability. Some members' points were converted into Amazon gift codes without their knowledge, in 611 cases worth ¥2,869,500. The company will cover the full amount.

Rakuten Drive said on Oct. 6 that credentials for an administrative account were stolen, leaving photos and documents in 15,382 accounts viewable from Jan. 29 to Sept. 17. Encrypted passwords were also taken for 313 accounts. A day earlier, on Oct. 5, Monogatari Corp. disclosed a leak of 10,788,963 member records from its Yakiniku King restaurant app. That is nearly every registered user, but the company says passwords and payment information were not included. In all of these cases the cause and route are under investigation, and no link between them has been confirmed.

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Politics · DietPress ✓ 5 outlets · remarks attributed to speakers

Diet questioning starts tomorrow; “strong economy and sound finances” and the farm minister's remark are the first issues

The 222nd extraordinary Diet session was convened on Oct. 5 and runs through Dec. 12. That day Prime Minister Takaichi gave her policy speech to plenary sessions of both houses. She said her top priority is protecting people's livelihoods through economic strength, and that she would achieve both a strong economy and fiscal sustainability. She also said a consumption tax cut would give households breathing room. Oct. 6 was a scheduling day with no plenary session. Party interpellations run Oct. 7-8 in the lower house and Oct. 8-9 in the upper house.

The opposition plans to start with remarks by Agriculture Minister Kazuo Yana (簗和生). In May, at a meeting of his party branch in his home prefecture of Tochigi, Yana reportedly said he had “sharply cut” road budgets for two municipalities that did not back him in an election. At his news conference after the Oct. 6 cabinet meeting, he apologized again, saying, “I was carried away and used a somewhat exaggerated expression.” He denied reports that grants rose for municipalities whose mayors support him, saying, “There was no pressure from me.” Land Minister Tatsunori Ibayashi (井林辰憲) said he had been told there was no such cut as reported. Yana acknowledged the remark and ruled out resigning on Oct. 2, then retracted it on Oct. 5. Tomorrow's answers will center on how the prime minister explains the timing and funding of the consumption tax cut, and why her minister stays in office.

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In brief
  • MLB Division Series Game 2: the Dodgers lost 3-2 to the Braves, leaving the series tied 1-1. Shohei Ohtani had one hit. Yoshinobu Yamamoto starts Game 3NHK · Kyodo
  • Work to close the breach at Inbanuma, a lake in Chiba Prefecture, was finished on Oct. 3. It was the first breach since the Japan Water Agency took over management in 1968; draining continuesNHK · Kyodo · Land Ministry
  • Daiwa Securities said on Oct. 5 that about 220,000 records may have leaked after unauthorized access to a contractor's system. No intrusion into its own systems was foundITmedia · NHK
  • The World Judo Championships run in Baku through Oct. 11. On the first day, Oct. 4, Wakana Koga won the women's 48 kg in her fifth appearance, her first title; Ryuju Nagayama took bronze in the men's 60 kgKyodo · euronews
  • An emergency rally protesting the killing was held at the Kenmin Hiroba plaza in Naha on the night of Oct. 4. About 160 people gathered and observed a moment of silence for the womanRyukyu Shimpo · Kyodo
  • After medicine on Oct. 5 and physics on Oct. 6, the Nobel announcements continue with chemistry on Oct. 7 (after 6:45 p.m. Japan time), literature on Oct. 8 and peace on Oct. 9NHK · Nobel Foundation
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Unverified — what we could not confirm

“Lower house questioning is today.” Oct. 6 was a scheduling day with no plenary session. Lower house questioning starts Oct. 7; there was none today.
“A Japanese researcher shares the physics prize.” Halzen won alone. Chiba University takes part in the observatory, but no one there is a laureate.
“Mr Max leaked data on more than 1.7 million people.” NHK reported it as a possible leak. DailyDrop could not confirm a second outlet's report or the company's own announcement, and treats it as unverified.
Glossary · dotted words — economics, law, security and science terms explained in the context of the story. The list grows every day.
INSIDENikkei closes above 70,000 for first time in three months; yen slides into the 158 rangeEconomy · MarketsPhysics prize goes to Halzen, who caught “ghost particles” in Antarctic ice — a rare sole laureateScienceNaha assembly unanimously protests killing blamed on U.S. Marine; governor to seek lighter base burden from prime minister tomorrowPolitics · OkinawaUp to 940,000 records at a GMO survey site, Rakuten Drive files exposed for eight months: hacking disclosures keep comingSociety · TechnologyDiet questioning starts tomorrow; “strong economy and sound finances” and the farm minister's remark are the first issuesPolitics · Diet