Top 10 Most Active Cards
Listing Volume
Live eBay Floor
Micro View: 30-Day History & Backtest (Auto-Scaled)

Dotted/Dashed lines = Live Forecast | Faded solid lines = Past shadow forecasts

Model Accuracy vs. Baseline (Card Specific)

Comparing Median Absolute Percentage Error (MdAPE) of our models against a 'Persistence Baseline' (assuming the price never changes). Models should consistently fall below the transparent backdrop column.

Macro View: All-Time History & Long Term Forecast

Sample Entropy: Lower = Predictable trend. Higher = Erratic noise.

Hurst Exponent: > 0.5 = Trending. < 0.5 = Mean-reverting. ~0.5 = Random walk.

Vol (CV): Standard deviation relative to mean. Standardizes risk comparison.

Skew: Positive = Prone to spikes. Negative = Prone to flash crashes.

Set-Level Market Trajectory & Forecasts

Comparing median actual price trajectory over the past 30 days alongside the median 30-day forecast for the Chronos and Hybrid GRU models.

Card-Level Forecasts & Entropy

Comparing 30-day projected changes against historical Sample Entropy. Sorted by Entropy to highlight the most unpredictable, erratic pricing behaviors.