As of October 24, 2026, 09:07 PM ET, Polymarket traders price December 31 at 26.1% in Will Valve add Cobblestone to the map pool by...? — $1.5K traded so far.
The leading outcome, December 31, is priced at 26.1%.
Price changes for the leading market — 24 hours: +11.6 pts; past week: +12.4 pts; past month: +19.6 pts.
Since September 01, 2026, December 31 has traded between 5.0% and 51.0%. It opened at 50.0% and last traded at 26.1%.
| Day | Close |
|---|---|
| Oct 17, 2026 | 25.9% |
| Oct 18, 2026 | 14.0% |
| Oct 19, 2026 | 14.6% |
| Oct 20, 2026 | 26.2% |
| Oct 22, 2026 | 14.4% |
| Oct 23, 2026 | 14.4% |
| Oct 24, 2026 | 26.1% |
December 31 is favored at 26.1%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| December 31 | 26¢ | 26.1% | +11.6 pts | $602 | 40.9% |
| October 31 | 2¢ | 2.3% | -0.1 pts | $869 | 59.1% |
See the full live book for this market on Polymarket
The leading market's spread is 48¢ (bid 2¢ / ask 50¢) — a tighter spread means cheaper round-trip trading.
$1.5K has been traded on this event in total, $0 of it in the last 24 hours, across 2 markets.
This market is scheduled to end December 31, 2026, 11:59 PM ET.
This market will resolve to "Yes" if Valve adds the map Cobblestone to the official map pool by the listed date at 11:59 PM ET. Otherwise, the listed market will resolve to "No". If Cobblestone is added to the Active Duty pool, it must remain there continuously for at least 48 hours for the relevant market to resolve to "Yes". Temporary additions (e.g., for testing) that are reversed within 48 hours will not count. If Cobblestone is added after the deadline, the relevant market will resolve to "No", even if the addition was announced earlier. For the purpose of this market, "Valve" refers to Valve Corporation, the developer and publisher of the Counter-Strike series. For the purpose of this market, the "official map pool" refers to the Active Duty map group in Counter-Strike 2 (CS2), which consists of the maps eligible for both competitive matchmaking and professional tournaments. The primary resolution source for this market will be official information from Valve; however, a consensus of credible reporting may also be used.
The largest current holder of the leading market holds 49 shares of No.
| Holder | Outcome held | Shares | Value at current price |
|---|---|---|---|
| 0xee464319… | No | 49 | $36 |
| Rapid-Precipitation | Yes | 20 | $5 |
| Trusty-Close | Yes | 16 | $4 |
| Terrible-Cruelty | Yes | 9 | $2 |
| Snappy-Rooster | Yes | 7 | $2 |
| Broken-Schnitzel | No | 2 | $2 |
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 22, 05:36 AM ET | Yes | SELL | 0.8% | $0 |
| Oct 20, 06:03 PM ET | Yes | BUY | 2.0% | $1 |
| Oct 19, 07:23 AM ET | Yes | SELL | 0.3% | $0 |
| Oct 15, 04:07 AM ET | Yes | SELL | 1.1% | $0 |
| Oct 10, 04:08 PM ET | No | SELL | 98.5% | $1 |
| Oct 09, 05:58 PM ET | No | BUY | 55.0% | $9 |
| Oct 05, 05:25 PM ET | Yes | BUY | 14.5% | $1 |
| Oct 02, 12:19 PM ET | Yes | SELL | 1.0% | $1 |
| Oct 01, 04:32 AM ET | Yes | SELL | 0.9% | $0 |
| Sep 29, 02:08 PM ET | Yes | SELL | 0.9% | $0 |
As of October 24, 2026, 09:03 PM ET, the leading outcome is December 31 at 26.1%. Next is October 31 at 2.3%. See the live book on Polymarket: https://polymarket.com/event/will-valve-add-cobblestone-to-the-map-pool-by-2?via=bro
$1.5K in total volume, with $0 traded in the last 24 hours across 2 markets.
The market is scheduled to end December 31, 2026, 11:59 PM ET.
December 31, priced at 26.1% as of October 24, 2026, 09:03 PM ET. Prices are implied probabilities backed by real-money trading.
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