Japan Physical Metals Index™
JPMI日本現物金属指数
Aggregates Refinery Spot · Dealer Bid · Street & Mercari prices — reflecting retail liquidity, domestic demand, real spreads, and secondary market premiums.
Silver Index · JPY/g
Updated daily via GitHub Actions
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JPMI — SILVER · TODAY'S BENCHMARK
JPMI-AG
¥ / g
Japan Physical Silver Index · Weighted composite of refinery, dealer, and street prices
RS
Refinery Spot
DB
Dealer / Pawn Bid
SR
Street Retail (Mercari)
RS  Refinery Spot — Buyback Prices
Tanaka 田中貴金属
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¥ / g · silver buyback
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Nihon Material 日本マテリアル
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¥ / g · silver buyback
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Mitsubishi 三菱マテリアル
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¥ / g · retail sell price
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DB  Dealer / Pawn Bid Prices
Nanboya ナンボヤ
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¥ / g · Sv1000 bid
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Daikichi 買取大吉
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¥ / g · per gram bid
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SR  Street Retail — Mercari MSPI-B Updated Mon · Wed · Fri · 10:00 JST · Last: 2026-03-01
# Coin Sold (¥) ¥ / g
1 Libertad 1oz 2002 ¥21,500 691.23
2 Philharmonic 1oz 2025 ¥21,199 681.54
3 Britannia 1oz 2020 ¥22,000 707.31
4 Walking Liberty Eagle 2025 ¥22,800 733.05
5 Panda 1oz 2023 ¥21,000 675.07
6 Britannia 1oz 2021 ¥21,800 700.87
MSPI-B Mean · n=6 · 1oz .999 bullion ¥21,717 698.16

⚠ Prices shown are buyer-paid sold prices. Mercari deducts a 10% seller commission plus variable delivery fees — actual seller proceeds are lower. SR reflects peer-to-peer market clearing price, not net seller return.

JPMI

Index Weights & Compute

Fixed weights applied to composite. RS = refiners · DB = dealers/pawn · SR = Mercari peer-to-peer

0.55
0.30
0.15