bondScovery

30-Year Japan A–BBB Corporate Bond Yield (JPY)

Fitted spot yield as of 2026-07-27

https://bondscovery.com/yield-curve/jpy-corporate-a-bbb-japan/30y

4.34%
1 week +4 bp1 month +18 bp

The 30-year Japan A–BBB Corporate yield is 4.34% as of 2026-07-27 (1w +4 bp, 1m +18 bp). Fitted from 34 bonds at the 30-year point of the curve, with history, monthly look-back and the bonds priced around it.

View the full curve live →Japan A–BBB Corporate Bond Yields (JPY)

30-year yield over time

3.75%4%4.25%4.5%Feb 17Apr 11Jun 4Jul 2730Y
30Y fitted yield over the last 6 months — click to open the interactive Time view
30YLatest2026-07-271m ago2026-06-262m ago2026-05-283m ago2026-04-284m ago2026-03-305m ago2026-02-27
Fitted yield4.34%4.16%4.27%4.06%4.00%3.77%
Move to today+18 bp+7 bp+29 bp+34 bp+57 bp

Other maturities on this curve

MaturityFitted yieldBonds
2-year1.83%192
5-year2.48%149
10-year3.37%107

Every maturity on this curve, from the shortest bill to the longest bond, is on the Japan A–BBB Corporate Bond Yields (JPY) page.

Bonds around the 30-year mark

30 of the 53 bonds maturing within 20% of 30 years that the 30-year fit is drawn from.

IssuerYieldMaturityCouponISIN
Tokyo GAS CO LTD4.38%2050-09-090.81%JP357300CL93
East Japan Railway Company4.40%2050-12-160.84%JP378360BLC7
East Japan Railway Company4.42%2051-04-140.85%JP378360EM44
Osaka GAS CO., LTD.4.43%2051-06-020.85%JP318040CM65
Tokyo GAS CO LTD4.44%2051-07-130.82%JP357300AM78
East Japan Railway Company4.43%2051-07-140.81%JP378360CM79
East Japan Railway Company4.44%2051-12-150.82%JP378360BMC5
Kyushu Electric Power Company, Incorporated4.62%2051-12-250.90%JP324640AN19
Kyushu Electric Power Company, Incorporated4.63%2052-03-251.17%JP324640CN41
Osaka GAS CO., LTD.4.46%2052-05-311.20%JP318040CN64
East Japan Railway Company4.46%2052-07-121.45%JP378360BN79
Osaka GAS CO., LTD.4.46%2052-08-301.40%JP318040CN98
East Japan Railway Company4.46%2052-10-111.59%JP378360CNA5
East Japan Railway Company4.46%2053-01-202.10%JP378360CP19
East Japan Railway Company4.46%2053-07-141.57%JP378360CP76
East Japan Railway Company4.46%2053-10-132.05%JP378360CPA0
Osaka GAS CO., LTD.4.48%2054-05-292.37%JP318040CQ53
East Japan Railway Company4.41%2056-07-280.50%JP378360DG76
Central Japan Railway Company4.42%2056-09-010.90%JP356680AM96
Tokyo GAS CO LTD4.41%2056-11-291.01%JP357300AGB2
Mitsui Fudosan CO., LTD.4.60%2056-12-061.18%JP389320CGC6
Osaka GAS CO., LTD.4.41%2056-12-080.99%JP318040AGC0
East Japan Railway Company4.39%2057-01-261.12%JP378360DH18
Central Japan Railway Company4.40%2057-03-091.09%JP356680AN38
Central Japan Railway Company4.40%2057-05-251.24%JP356680AN53
Central Japan Railway Company4.40%2057-10-121.58%JP356680ANA6
Tokyo GAS CO LTD4.39%2057-12-250.69%JP357300AKC2
East Japan Railway Company4.37%2058-01-251.30%JP378360DJ16
Development Bank of Japan4.32%2058-03-191.18%JP372155AJ86
Tokyo GAS CO LTD4.38%2058-07-191.09%JP357300AJ73