Set Guide · English edition
OP-15 Adventure on Kami's Island — English booster box price
English edition · released 2026-04-03 · Japanese box guide
Sold median $262 (20 sales · 2026-09-05) · Asking $300 (16 listings)
Data updated · refreshed daily
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What these numbers mean
- Asking price (mid)
- Median asking price of verified active eBay listings — not a completed sale.
- Days of inventory
- How long the listings on sale would last at the current selling pace. Fewer days means stock is clearing faster.
- vs Japanese box
- English completed-sale median divided by the Japanese one. The ratio describes the gap; it does not explain it.
Key facts in one paragraph
- As of 2026-09-05, a sealed English OP-15 Adventure on Kami's Island booster box has a completed-sale median of about $262 (20 eBay sales in the trailing 28 days).
- Current eBay asking prices run around $300 (16 active listings, 2026-09-07).
- The English OP-15 box trades at about 2.4x the Japanese box ($107 as of 2026-09-01).
- The English edition of OP-15 released Apr 2026.
The line is the median of completed eBay sales we collect ourselves, plotted by date of sale. The weekly view widens its averaging window for thinly traded sets (shown above); the monthly view groups every sale within a calendar month. Thin periods are left blank rather than estimated.
Counts listings currently on sale — not units sold.
$265 (item $240 + shipping $25) · New/Factory Sealed · ships from ES · as of 2026-09-07 · View listing
English OP-15 box — weekly completed-sale median
| Week ending | Median | Low (P25) | High (P75) | Sales in window | Sales that week |
|---|---|---|---|---|---|
| 2026-09-05 | $262 | $248 | $276 | 20 | 5 |
| 2026-08-29 | $250 | $244 | $269 | 15 | 2 |
| 2026-08-22 | $250 | $242 | $265 | 19 | 5 |
| 2026-08-15 | $253 | $237 | $274 | 19 | 8 |
| 2026-08-08 | $243 | $202 | $257 | 13 | 0 |
| 2026-08-01 | $245 | $205 | $269 | 18 | 6 |
| 2026-07-25 | $231 | $200 | $253 | 17 | 5 |
| 2026-07-18 | $223 | $199 | $244 | 14 | 2 |
| 2026-07-11 | $223 | $202 | $244 | 18 | 5 |
| 2026-07-04 | $223 | $203 | $231 | 14 | 5 |
| 2026-06-27 | $226 | $217 | $231 | 18 | 2 |
| 2026-06-20 | $226 | $221 | $231 | 25 | 6 |
| 2026-06-13 | $226 | $221 | $231 | 21 | 1 |
| 2026-06-06 | $226 | $216 | $231 | 21 | 9 |
| 2026-05-30 | $221 | $208 | $230 | 12 | 9 |
Completed eBay sales of sealed English boxes, dated by sale date. Each row's median uses the sales inside its averaging window (28+ days), so thin weeks borrow neighbours. Source rules · 2026-09-07
English vs Japanese OP-15 box
| Metric | English | Japanese |
|---|---|---|
| Completed-sale median | $262 2026-09-05 | $107 2026-09-01 |
| Sales in window | 20 | 14 |
| Asking median (active) | $300 16 listings | $115 14 listings |
| Listings on sale now | 14 | 15 |
| PSA graded (full set) | — | 12,567 92.2% PSA 10 |
| Release date | 2026-04-03 | 2026-02-28 |
| English ÷ Japanese (completed-sale medians) | 2.4x | |
Japanese figures come from the OP-15 Japanese box guide. Printings are never averaged together.
English OP-15 cards at eBay auction — last 30 days
| Listing type | Ended | Sold | Sell-through |
|---|---|---|---|
| single cards | 1,235 | 281 | 22.8% |
| loose packs | 93 | 51 | 54.8% |
| All English OP-15 auctions | 1,332 | 334 | 25.1% |
Auctions carrying English-printing OP-15 items, 2026-08-09 to 2026-09-08, every one read again after it closed. Median winning bid $12. Sell-through counts only auctions whose outcome eBay reported; unsold auctions stay in the denominator. Buy-it-now listings are not included.
OP-15 Adventure on Kami's Island English box — frequently asked questions
How much is a sealed OP-15 Adventure on Kami's Island English booster box?
As of 2026-09-05, completed eBay sales put the median at about $262 (20 sales in the trailing 28 days, from $248 to $276). Active asking prices center near $300 across 16 listings.
How does the English OP-15 box price compare with the Japanese box?
English $262 (as of 2026-09-05) versus Japanese $107 (as of 2026-09-01): the English box trades at about 2.4x the Japanese box.
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