# Market Scan
A universal perps market health scanner designed to give users a live, real time overview of market conditions across multiple exchanges and trading pairs. Allowing them to quickly identify which are calm/liquid enough to trade. The OI/BBO ratio in particular can be a useful signal for gauging how much depth exists relative to open positions.
## Includes
* Markets: total number of active markets currently being tracked
* Avg OI/BBO: average Open Interest relative to the Best Bid/Offer
* 24H Volume: total volume across all markets in the last 24 hours
* Last Sync: date and time of last data update
**Per-market table**
* Symbol
* Stability
* OI/BBO
* Volume
* Status
* Score
## Stability/Status Classification System
Calm = Stable for 10+ minutes
Steady = Stable for 5+ minutes
Choppy = Stable for 2+ minutes
Volatile = Changing in under 2 minutes
## Filters
Users can filter the table by Volume (e.g. All high, All low etc.), and markets with zero OI/BBO or zero volume are automatically excluded from the table.
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