Supply Signals
Cards showing unusual supply-side activity — cross-reference with the card screener and SpellBook Scores for a fuller picture.
| Card | Signal | 7d Trend |
|---|
About Supply Signals
Supply signals track real-time changes in dealer behavior and market inventory for Magic: The Gathering cards. When dealers raise buylist prices, pull listings, or when sales velocity spikes beyond normal patterns, it often signals a price move before it happens. This page surfaces those signals so you can act early rather than react late.
Each signal includes a confidence level — from "unusual" activity worth watching to "buyout" signals that demand immediate attention. Cross-reference signals with SpellBook Scores for a composite view of card strength, or check price movers to see if a signal has already translated into a price move.
Signals are computed daily from TCGPlayer price spreads, dealer buylist changes, and sales velocity patterns. Resolved signals show historical outcomes so you can evaluate signal accuracy over time.
Frequently Asked Questions
What are MTG supply signals?
Supply signals detect unusual market activity for Magic cards — dealer inventory drops, buylist price spikes, and listing velocity changes. These shifts often precede price moves, giving you an early warning before the broader market reacts.
How do supply signals affect card prices?
When dealers raise buylists or pull inventory, it signals rising demand or shrinking supply. Cards showing high-confidence supply signals frequently see price increases within days as the available copies dry up.
How often are supply signals updated?
Supply signals are computed daily from price spreads, dealer buylist changes, and sales velocity patterns. Each signal includes a confidence level (unusual, alert, or buyout) and a phase (early, active, or late) so you can gauge timing.