Pete Hegseth out as Secretary of Defense by December 31 priced at 28% on Polymarket, up 3.5 points, on $528K traded

Polymarket traders priced a 28% probability that Pete Hegseth would be out as Secretary of Defense by December 31, up 3.5 percentage points, in the market update published Oct 17, 2026, at 10:39 AM ET. Reported trading volume stood at $528K.

The higher price indicates a shift toward the departure outcome, although it remained below 50%. The supplied update did not identify a fresh development explaining the move.

Repricing without a clear new catalyst

The accompanying news scan found no significant new platform headline during the preceding 15 minutes. It surfaced previously circulated material instead, leaving no established connection between a new report and the Hegseth market’s advance.

According to predictionbubbles.net, its movers dashboard compares prices over 24 hours and updates every 15 minutes using data from Polymarket and Kalshi. The supplied dashboard snapshot recorded venue data retrieved on 17 Oct 2026, 14:09 UTC.

What the figures establish

Predictionbubbles.net ranks markets by the size of their probability-point changes, rather than their relative percentage gains. Under that framework, the reported 3.5-point increase describes a change in the market’s implied probability—not a 3.5% relative increase.

The $528K volume figure provides a separate measure of trading activity. The supplied headline does not specify its measurement period, and the source excerpt does not include a Hegseth-specific order book or trading history. It therefore does not establish how much trading accompanied the latest move or how deep the market was.

What it means for prediction markets

• Direction and level differ: The departure outcome gained ground, but its 28% price still placed it below an even chance.
• A catalyst remains unverified: The quiet 15-minute news scan does not explain a move measured over a longer window.
• Volume is not liquidity: The reported $528K traded does not, by itself, show how readily orders could be executed without moving the price.
• The deadline matters: The contract concerns Hegseth being out by December 31, not an undated possibility of departure.