common.predictions.kalshi_open_interest_daily table provides daily end-of-day snapshots of open interest for each Kalshi prediction market, enriched with comprehensive market metadata. Each row represents one market on one day with the closing price and total outstanding contracts.
Use this table for market liquidity analysis, total value locked tracking, market size comparisons, and understanding long-term position trends.
Table Columns
Data Notes:- One row per (day, market_ticker) combination
- Open interest represents outstanding contracts at end of day
- Each contract is worth $1 at settlement
- Includes comprehensive market metadata for filtering and analysis
unique_id
Understanding Open Interest
What is Open Interest?
Open interest represents the total number of outstanding contracts in a market at the end of the day. Since each Kalshi contract is worth $1 at settlement:open_interest = 10,000means 10,000 contracts worth $10,000 total are outstanding- This represents the total amount at stake in the market
Open Interest vs Volume
- Open Interest: Total outstanding contracts (stock analogy: shares outstanding)
- Volume: Contracts traded during a period (stock analogy: daily trading volume or daily notional volume)
- High open interest indicates significant market participation
- Low open interest suggests limited liquidity or interest