About SilverData
A silver-focused data site for prices, inventories, positioning, and market context
What This Site Is
SilverData.io is a small research dashboard for tracking the silver market. It brings together prices, ratios, physical inventory, trader positioning, Shanghai market signals, and related macro series in one place.
The guiding rule is simple: keep data that can be refreshed automatically and clearly label anything that is estimated or delayed by its publisher. Manual-only archive series are not treated as durable public chart data.
Data Sources
- Yahoo Finance - COMEX futures, market ETFs, selected crypto pairs, and FX tickers.
- Gold-API.com - London OTC spot silver and gold prices when COMEX is closed and London is trading.
- Stooq - Long-run daily spot backfills where available.
- CFTC - Weekly disaggregated Commitment of Traders reports for COMEX silver futures.
- CME Group - COMEX registered and eligible warehouse inventory.
- Fund websites and APIs - Holdings for tracked physically backed silver funds.
- LBMA - Monthly London silver vault totals, netted against configured overlap ETFs where needed.
- FRED - Macro indicators, rates, monetary series, and formula inputs.
- SGE and SHFE - Official Shanghai pricing and inventory publications.
- Continued archive series - Selected legacy chart series kept only when there is a verified way to keep them updated automatically.
If a source cannot be refreshed reliably as a clean public time series, it is omitted from the live chart dataset or shown only where the limitation is explicit.
What You Can Track
Charts
The Charts page lets you search core SilverData series and continued archive series, compare multiple lines, switch to log scale, use raw/indexed/percent views, save local layouts, and export selected data.
Live Prices
Silver and gold prices update during market hours. COMEX front-month futures are the normal feed, with London OTC spot used when COMEX is closed for a US holiday but London is open.
Ratios
Gold/silver ratio charts include long-run context and percentile-style framing, so current readings can be compared with prior regimes instead of viewed in isolation.
Visible Inventory
Total Visible Silver Inventory combines COMEX warehouse stocks, tracked ETF holdings, and an estimated LBMA vault component after removing configured overlap ETFs.
COT Positioning
Weekly CFTC reports show how commercial traders, managed money, and other futures participants are positioned in COMEX silver.
Shanghai Signals
Shanghai pages compare SGE/SHFE pricing with COMEX, show premiums in percent and dollar terms, and include official Shanghai inventory series where available.
Technical Indicators
The charting tools support common overlays and panes such as moving averages, Bollinger Bands, RSI, and MACD for series where the data shape supports them.
Momentum Score
The dashboard includes a trend-strength score based on silver returns over several lookback windows. It is a context signal, not investment advice.
Inventory Methodology
Total Visible Silver Inventory aggregates COMEX registered silver, COMEX eligible silver, tracked ETF holdings, and an estimated LBMA vault component that excludes configured overlap ETFs to avoid double counting. These are the components shown on the inventories page and related charts.
COMEX warehouse data comes from CME Group daily reports. ETF holdings are collected from official fund sources where possible. Because some ETF silver is held in London Good Delivery vaults, configured overlap ETF ounces are subtracted from LBMA totals when estimating the LBMA vault component.
LBMA vault data is published monthly and does not separate ETF holdings from other custodial stocks. Between LBMA updates, the latest monthly estimate is carried forward. For dates before the earliest LBMA data point, the site uses the earliest available estimate and labels that limitation on the inventories page.
Market Status Badges
The dashboard price cards show a badge so you can tell which market context applies to the displayed price.
| Badge | Symbol | Meaning |
|---|---|---|
| SPOT | SI=F / GC=F | COMEX futures are trading while London spot is active. Prices still reflect COMEX front-month futures. |
| FUTURES | SI=F / GC=F | COMEX futures are trading but London spot is closed. |
| LONDON | XAG / XAU | COMEX is closed for a US holiday while London is open, so the site uses London OTC spot prices. |
| HOLIDAY | -- | Both COMEX and London markets are closed. |
| CLOSED | -- | Weekend or daily maintenance break. No live market feed is expected. |
Market Hours Reference
- COMEX Futures - Sunday 6pm ET through Friday 5pm ET, with a daily break from 5-6pm ET.
- London Spot - Monday-Friday, roughly 8am-5pm London time.
Momentum Score Methodology
The Momentum Score is a trend-strength indicator for silver. It produces a 0-100 score, where higher values indicate stronger bullish momentum and lower values indicate bearish momentum.
It combines silver returns across 1-month, 3-month, 6-month, and 12-minus-1-month windows. Each return is normalized against prior history, combined into a weighted score, and converted into a percentile-style reading.
| Score Range | Label | Plain-English Meaning |
|---|---|---|
| 90-100 | Strong Bullish | Top tier of historical momentum readings. |
| 65-90 | Bullish | Above-average trend strength. |
| 35-65 | Neutral | No clear trend advantage. |
| 10-35 | Bearish | Below-average trend strength. |
| 0-10 | Strong Bearish | Lowest tier of historical momentum readings. |
Update Schedule
| Data Type | Update Frequency | Source |
|---|---|---|
| Prices | Every minute during market hours | Yahoo Finance / Gold-API |
| COT Data | Weekly after release | CFTC |
| COMEX Inventory | Daily as published | CME Group |
| ETF Holdings | Daily as published | Fund websites and APIs |
| LBMA Vault Holdings | Monthly as published | LBMA |
| Macro and Rates | Daily, weekly, or monthly by source | FRED and formula-derived series |
| Shanghai Data | Market-calendar dependent | SGE, SHFE, and Yahoo FX |
Some official sources publish with a delay. In those cases the site shows the latest available value until the next source update is released.
Performance and Fair Use
SilverData uses caching and traffic limits to keep the site responsive. Normal browsing should not trigger those limits.
- If you see "Too many requests", wait briefly and reload once.
- Repeated refreshes can extend the cooldown window.
- The public API endpoints mainly exist to power the website.
Disclaimer
SilverData.io is for informational purposes only and is not financial advice. Always do your own research and consult a qualified professional before making investment decisions.
Silver and precious metals can be volatile. Prices are affected by economic conditions, market liquidity, geopolitical events, and investor sentiment.