| name | price-charting-and-trends |
| description | Use when reading historical price charts for cards. Trend (up/down/flat) and volatility define holding strategy.
|
Price Charting and Trends
Cards trend with 3-12 month lag from macro signals. Charts show momentum, volatility, and inflection points.
Chart features to look for
- Trend (12-month moving average direction)
- Volatility (standard deviation of monthly prices)
- Inflection points (sudden change in slope)
- Volume (sales count per month)
- Support and resistance levels (psychological price floors/ceilings)
Chart sources
- Card Ladder (most comprehensive, paid)
- 130point historical data (free, less depth)
- eBay sold listings exported manually
- Goldin/PWCC auction archives
- Custom Google Sheet from eBay API
Trend strategies
- Up-trend with low volatility = hold, sell at next ceiling
- Up-trend with high volatility = trim position, wait for stabilization
- Down-trend = sell or hold long-term (no buying into weakness for set-completion only)
- Flat with high volatility = buy/sell-the-range
- Flat with low volatility = stable hold or set completion strategy
Where this fits in the X3 empire
Powers the Sniper tool's price-trend analysis.