As of October 24, 2026, 07:52 PM ET, Polymarket traders price October 31, 2026 at 1.6% in Another pneumonic plague case in Russia by...? — $99.1K traded so far.
The leading outcome, October 31, 2026, is priced at 1.6%.
Price changes for the leading market — 24 hours: +0.2 pts; past week: -0.7 pts.
Since October 03, 2026, October 31, 2026 has traded between 1.4% and 31.5%. It opened at 14.5% and last traded at 1.6%.
| Day | Close |
|---|---|
| Oct 13, 2026 | 5.5% |
| Oct 15, 2026 | 2.8% |
| Oct 16, 2026 | 3.2% |
| Oct 18, 2026 | 1.8% |
| Oct 19, 2026 | 1.8% |
| Oct 20, 2026 | 1.4% |
| Oct 24, 2026 | 1.6% |
October 31, 2026 is favored at 1.6%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| October 31, 2026 | 2¢ | 1.6% | +0.2 pts | $55.7K | 56.2% |
See the full live book for this market on Polymarket
The leading market's spread is 2¢ (bid 1¢ / ask 2¢) — a tighter spread means cheaper round-trip trading.
$99.1K has been traded on this event in total, $402 of it in the last 24 hours, across 1 market.
This market is scheduled to end October 31, 2026, 11:59 PM ET.
This market will resolve to "Yes" if a confirmed case of pneumonic plague in a human is reported in the Russian Federation at any point between market creation and the specified date, 11:59 PM Moscow time, . Otherwise, this market will resolve to "No". A "confirmed case" is a case explicitly identified by a qualifying source as laboratory-confirmed Yersinia pestis infection with pneumonic (pulmonary) involvement, or explicitly announced as a confirmed pneumonic plague case. Publication of the underlying laboratory results is not required. A bubonic or septicemic case that progresses to pneumonic plague qualifies. A case reported only as "plague" with no form specified, and a case described only as suspected or probable, do not qualify. The case must be distinct from the Irkutsk Anti-Plague Research Institute employee who reportedly passed away on October 1, 2026; subsequent confirmation, reclassification, or post-mortem testing of that patient will not qualify. Resolution turns on the date a qualifying source publishes the confirmation, not the date of exposure, symptom onset, or laboratory result. A report published after the deadline does not count even if the infection occurred earlier. … (condensed)
The largest current holder of the leading market holds 3,221 shares of No.
| Holder | Outcome held | Shares | Value at current price |
|---|---|---|---|
| Shimmering-Reindeer | No | 3,221 | $3.2K |
| Ragged-Thongs | Yes | 3,136 | $49 |
| Tough-Garter | Yes | 2,250 | $35 |
| Vacant-Legacy | No | 1,726 | $1.7K |
| Flat-Badger | No | 1,413 | $1.4K |
| Failing-Hypothermia | No | 1,358 | $1.3K |
| Agonizing-Exam | No | 1,230 | $1.2K |
| Optimal-Miss | Yes | 1,000 | $16 |
| Concrete-Noir | No | 1,000 | $984 |
| Glistening-Contributor | Yes | 973 | $15 |
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 24, 06:48 PM ET | Yes | SELL | 0.7% | $1 |
| Oct 24, 12:22 AM ET | Yes | BUY | 2.2% | $7 |
| Oct 23, 05:49 PM ET | No | BUY | 99.3% | $10 |
| Oct 23, 11:21 AM ET | No | SELL | 98.0% | $35 |
| Oct 23, 02:14 AM ET | Yes | SELL | 0.9% | $0 |
| Oct 23, 01:25 AM ET | No | SELL | 98.0% | $394 |
| Oct 22, 01:17 AM ET | Yes | SELL | 0.5% | $1 |
| Oct 21, 10:17 AM ET | No | SELL | 97.9% | $83 |
| Oct 21, 02:46 AM ET | No | SELL | 98.0% | $1 |
| Oct 20, 05:06 PM ET | Yes | SELL | 0.6% | $0 |
As of October 24, 2026, 07:36 PM ET, the leading outcome is October 31, 2026 at 1.6%. See the live book on Polymarket: https://polymarket.com/event/confirmed-pneumonic-plague-case-in-russia-byptptpt?via=bro
$99.1K in total volume, with $402 traded in the last 24 hours across 1 markets.
The market is scheduled to end October 31, 2026, 11:59 PM ET.
October 31, 2026, priced at 1.6% as of October 24, 2026, 07:36 PM ET. Prices are implied probabilities backed by real-money trading.
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