Katie Zacharia out as Press Secretary by October 31 surges 61.6 points to 70.2% on Polymarket, on $212K traded

Zacharia contracts jump on both venues

Polymarket traders priced a 70.2% chance that Katie Zacharia would be out as Press Secretary by October 31, a rise of 61.6 percentage points, in the snapshot published Oct 16, 2026 at 1:54 PM ET. The contract had $212K in traded volume.

According to PredictionBubbles’ movers-board summary, the contract recorded the day’s largest move. Kalshi’s related market, asking whether Zacharia would be out before November 1, climbed 50 percentage points to 64.0%, with $209K traded.

What the board establishes

PredictionBubbles ranks its movers by the absolute change in market-implied probability over the preceding 24 hours. The increases therefore represent percentage-point changes, not percentage gains. Its price feed updates every 15 minutes.

The supplied material does not identify a news event behind the repricing or establish that Zacharia’s departure has been announced. It also does not include the contracts’ detailed settlement terms, limiting what can be concluded about how closely the two markets match.

PredictionBubbles defines reported volume as cumulative trading, rather than money exchanged solely during the latest 24 hours. The $212K and $209K figures therefore do not establish how much trading accompanied these particular moves.

What it means for prediction markets

• Both venues repriced toward departure: The 70.2% Polymarket reading and 64.0% Kalshi reading each put the outcome above an even chance, but neither confirms it will occur.
• Related contracts are not necessarily identical: The October 31 and before-November-1 wording should be read alongside each venue’s settlement rules before treating the prices as directly comparable.
• Activity and certainty are different measures: The large probability moves and reported volumes document market activity, not independent evidence of a personnel decision.