SimpleFunctions
PolymarketDec 31, 2026241 days left

Will Russia capture Kostyantynivka by December 31, 2026?

This contract is priced at 78¢ on Polymarket. Current book: 77¢ bid, 78¢ ask, 1¢ spread.

Implied probability

78¢
$397K volume
$55K liquidity
58% of event volume

Event outcomes

3

Family volume

$680K

Best sibling

June 30, 2026 30¢

Ticker

0x7e50b661…4009

Price history

78¢ current

3¢
25¢50¢75¢100¢
Apr 8, 2026May 3, 2026

Orderbook snapshot

77 / 78¢

Polymarket
1¢ spread
BidSize
77¢143
76¢49K
75¢1.5K
74¢4.1K
72¢528
71¢5
58¢10
57¢10
AskSize
78¢96
79¢10
80¢1.2K
81¢39K
82¢16
83¢1.2K
84¢500
85¢1.0K

Contract terms

Resolution, venue, and identifiers.

Resolution rules

This market will resolve to “Yes” if, according to the ISW map, Russia captures the Kostyantynivka railroad station located on Pravoberezhna vulytsia by December 31, 2026 at 11:59 PM ET. The railroad station will be considered captured if any part of the train station icon is shaded red on the ISW map (https://storymaps.arcgis.com/stories/36a7f6a6f5a9448496de641cf64bd375) by the resolution date. If the area is not shaded red by December 31, 2026, 11:59 PM ET, the market will resolve to “No”. If Russia comes into control of this territory as a result of a negotiated settlement, this will qualify for a 'Yes' resolution, regardless of if it is shaded red in the ISW map. An announcement of a negotiated settlement which gives Russia de jure control will not qualify. Actual control must be established. Once Russia captures the railroad station, any subsequent loss of control will not be considered towards the resolution of this market. Train Station Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Kostyantynivka3.jpg Train Station Location in Kostyantynivka: https://polymarket-upload.s3.us-east-2.amazonaws.com/Kostyantynivka2.jpg Kostyantynivka Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Kostyantynivka1.jpg Location on Google maps: https://maps.app.goo.gl/hZ6ch5jVRvkNFY317 The primary resolution source for this market will be the ISW Ukraine map. If the ISW map is rendered unavailable, information from DeepStateMap (https://deepstatemap.live/) may be used. If information from both the ISW and DeepStateMap are rendered permanently unavailable, a consensus of credible reporting may be used. Note: Any temporary glitches or errors in the map which will not be considered.

Venue

Polymarket

Closes

Dec 31, 2026

Identifier

0x7e50b661…4009

Event family

Will Russia capture Kostyantynivka by.

This view keeps the individual contract next to its sibling outcomes. For long-tail search traffic, this is the useful context: where the current price sits inside the event, how much volume exists around the family, and which outcomes have actual depth.

Total volume

$680K

Outcomes

3

Highest price

December 31, 2026 78¢

Current share

58%

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

42.7%

IY (No)

536.3%

Adj IY

265%

CRI

4

Overround

0.2%

LAS

0.01

Regime

neutral

Score

0.409

Observability

low

Event type

political

Full indicator table

42.7%
536.3%
Adj IY
265%
4
Overround
0.2%
LAS
0.01

Odds pages

Related prediction questions

Browse odds

Related readings

Matched from SimpleFunctions blog, opinions, technical guides, concepts, and learn pages.

Browse library
Blogmarkets

Kalshi vs Polymarket: Which Prediction Market Should You Trade?

In-depth comparison of Kalshi and Polymarket for prediction market traders. Regulatory structure, liquidity, fees, API tooling, and cross-venue trading with SimpleFunctions.

Opinionanalysis

Information Finance Has Arrived: A Material Map of Prediction Markets in Q2 2026

Combined Kalshi + Polymarket volume hit $66B in just four months of 2026 — already greater than the entire 2025 industry total. Bernstein projects $1T by 2030. Two venues hold 95% of US share. The distribution layer fragmented across nine retail surfaces. AI agents are 30% of Polymarket wallet activ

Opinioncomparison

Kalshi vs Polymarket: Mechanics, Fees, Regulation, Liquidity (2026)

Side-by-side comparison of Kalshi and Polymarket in 2026. Fee math, calibration data, withdrawal speed, and a decision tree for picking the right venue.

Conceptmethodology

Resolution Risk Premium: Pricing the Rule, Not the Outcome

When the resolution rule is fuzzy, the price is the market's estimate of how the rule will be interpreted, not the outcome's probability. Three case studies and the discount math.

Conceptmethodology

Maker / Taker Regime in Prediction Markets: How to Read the Orderbook State

Three regime states (maker-dominated, taker-dominated, neutral) and how to read which one a Kalshi or Polymarket contract is in. Strategy follows regime, not thesis.

Blogmarkets

Prediction Market Orderbook Analysis: Reading Depth, Spread, and Liquidity

How to read prediction market orderbooks. Binary settlement, spread-as-percentage, depth asymmetry, executable edge calculation, and cross-venue arbitrage analysis.

SimpleFunctions context

Index, screen, query, and monitor.

Open index