Market Screener

A prediction market screener narrows a catalog of events and contracts using criteria you choose. You can combine a subject with trading volume, a closing window, or a range of probabilities, then sort the results to decide what to investigate. Glypse applies these filters to Polymarket and Kalshi, with the option to view both venues together or either one separately.

You can sort by 24h volume for trading over the past day or by Volume for trading since a listing began. Volume filters keep activity within a chosen range. Events view ranks activity across a whole event, while Markets view shows which individual outcomes account for trading. The figures are displayed in dollars and represent contracts or shares traded, rather than the cash paid for those trades. Comparing recent and lifetime volume helps distinguish current activity from a large total accumulated over a longer period.

Open interest represents outstanding contract positions that have not been closed or settled. Volume counts trading, including repeated trades in the same contracts, while open interest measures positions that remain open. The screener shows open interest for the whole event in Events view, allowing you to filter Polymarket and Kalshi events by their outstanding exposure. Available liquidity depends on the buy and sell orders at the venue, so an active market can still have a wide spread or limited size at its displayed price.

In Markets view, the 24h change filter selects markets by the size of their probability change in either direction. Changes are measured in percentage points: a move from 40% to 50% is a rise of 10 percentage points. Sorting the column puts the largest rises first in descending order or the largest declines first in ascending order. The price sparklines summarize the available history over the past day, helping you distinguish a gradual move from a sharp change or reversal. You can combine movement with a venue, category, or volume filter.

Yes. In Markets view, the Chance filter selects a range of implied probabilities. Chance expresses the displayed Yes price as a probability, so a price of 40 cents corresponds to 40%. Lower ranges surface outcomes priced as less likely, while higher ranges show those priced as more likely. Combining chance with trading volume or a closing window gives you a more specific set of contracts to research. The price available for a trade can differ from the displayed figure.

Categories group listings by subject, and subcategories narrow them to a more specific topic. You can also add keywords, each of which must appear somewhere in an event’s title, subtitle, tags, or its markets’ names and rules. This can find a subject mentioned in a contract’s details even when it is absent from the event title. In Markets view, numeric and timing filters apply to individual markets within matching events, so a row can appear because a keyword occurs elsewhere in its parent event.

Structure is available in Events view. Single market selects events containing one market. Winner-take-all selects events whose markets represent mutually exclusive outcomes, while Independent selects events whose markets can resolve separately. These distinctions follow the event structure reported by the venue; separately resolving outcomes can still be related.

Yes. Selecting a row opens its event details over the table, including its markets, available price history, resolution rules, and sources. You can inspect the event and return to the same filtered list. The details also link to the full research page and the venue.

Yes. Political categories and keywords let you narrow the table to the elections or candidates you are researching. Markets view shows each outcome’s implied probability and daily movement, while volume filters help you focus on contracts with trading activity. You can view Polymarket and Kalshi election odds together or select one venue.

Yes. The crypto category and keyword filters let you find event contracts involving the assets you follow. You can then narrow them by trading volume, probability, or expected closing time. The Chance column shows the probability of each contract’s stated outcome, such as reaching a price threshold, rather than the spot price of the asset.

Yes. Sports categories and subcategories narrow the catalog by the available competitions and subjects. Markets view lets you examine the individual outcomes, including their probabilities and recent movement. Combining those filters with volume and expected closing time helps you find sports event contracts that fit your research.

Glypse regularly refreshes its stored Polymarket and Kalshi data, and the figures can trail the venues. The open screener does not continuously stream new prices. Reloading or changing your criteria requests results from the available data; a saved screen is a way to revisit your criteria, rather than an alert subscription.

Yes. You can use the filters, switch views, and open event details without an account. A free account lets you browse beyond the first page of results.