On September 27, 2026, the site's 90-day ratio endpoint returned 74 observations from June 28 through September 21. The ratio was 65.95 on the last stored date, the lowest value in this retained sample. The highest was 71.85 on July 19. The endpoint reported a 30-day average of 67.33.
Three numbers, with their scope
- Observed rows: 74
- Retained minimum: 65.95 on September 21
- Retained maximum: 71.85 on July 19
- Reported 30-day average: 67.33
The 5.90-point distance between the retained minimum and maximum describes this sample only. It is not a long-run historical range and does not define a normal or fair ratio.
How the ratio is produced
Each point divides the site's stored USD/oz gold benchmark by its stored USD/oz silver benchmark. Using one currency and unit makes the arithmetic comparable, but it does not remove timestamp or source-method differences. Adjacent dates can repeat when cached benchmark values have not changed.
What cannot be inferred
A fall from 71.85 to 65.95 says that silver became more expensive relative to gold within these stored benchmark observations. It does not show that silver was undervalued at the start, that gold was overvalued at the end, or that the ratio will reverse. Those claims require a valuation model and evidence beyond this series.
Reproducing the check
The figures come from /api/premium/ratio?days=90. Count the returned history rows, sort them by the ratio field, and compare the first and last dates actually present. A later request may differ as new snapshots are added and older cache entries expire.
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