$YESNO

Kalshi and Polymarket daily volume, Oct 3: $686.69M

$686.69Mdollars6.6% upon the day before

Oct 3Bitcoin timestamp, block 969,845

$500.00M$600.00M$700.00M$800.00M

How it is counted

Normal$563.27M to $673.45M

Highest$857.11MSep 20

Unusual days3

Counts: Dollars traded per day on Kalshi and Polymarket, added together, as DefiLlama counts each venue's notional volume.
Adds up: Kalshi, Polymarket
Source: DefiLlama, daily notional volume of Kalshi and Polymarket
Terms: DefiLlama open API. Volumes are computed and published by DefiLlama; Tickerz adds the two venues once an hour.
Cadence: Daily, two days late. Newest complete day Oct 3. Read Oct 4, 00:40 UTC. 127 days were revised by the source after first read; the chart shows the latest numbers.
Baseline: The prior 30 days, 14 needed.
Notice: Volume figures are computed and published by DefiLlama.

Resolution

Index

$YESNO Prediction market volume. Rulebook v0.2, 2026-10-04, $YESNO rule v2 from 2026-10-06.

Prints

Daily, two days late. The newest complete day is on the record after the daily proof at about 12:00 UTC.

As first published

$564,069,084.00for 2026-10-03, recorded 2026-10-04 in digest 7b7caf70bad23f56, Bitcoin block 969,845. Proof

Revised: $686,685,202.00 on 2026-10-05; the number as first published stands for settlement.

The number as first published is final for settlement. A revision by the source is shown beside it and never replaces it.

Fallback

DefiLlama publishes a day about a day late and keeps filling it in for hours after. From Oct 6 2026 a day prints only once both venues also have the day after it, about two days late. Until then it stays open and nothing settles. A day that never lands is void.

Precision

US dollars of notional volume, as DefiLlama reports each venue, summed and rounded to the cent.

Cost to move

Expensive. Adding a dollar of volume means trading a dollar of contracts on Kalshi or Polymarket.

Grade

candidate. Money traded on two venues, one regulated by the CFTC. Moving the number means trading, and paying the venues' fees, in public. Not for settlement yet: DefiLlama's terms bar commercial use without its written consent, and Kalshi's data terms bar building an index on its volume without Kalshi's. No source with clean terms has been found (checked Oct 5 2026).

For a rulebook

Settle on the number Tickerz first recorded for $YESNO for the UTC day named in the contract, published at tickerz.com/x/yesno and in GET /api/indices/yesno, timestamped daily in Bitcoin with OpenTimestamps.

Arena: No question open. Oct 8 opens when Oct 6 is complete and on file. The Arena.
Listed names: $HOOD$ICE$CME$DKNGNo link to this index has been measured.
Proof: Last proof Oct 6, digest 7f0338a4fc80a5fb, Bitcoin block 970,174. Proof On Solana: the print for 2026-10-03, Solana record. Signed numbers $YESNO feed Methodology
Code: GET /api/indices/yesno GET /api/indices/yesno/history.csv