PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedSelected book midpoint
Yes · —
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Stored reference
Yes 98%
Yes 98%Market quality
65 / 100
Medium quality24h Volume
$792.8
Liquidity
$11.6K
Medium liquidityOpen interest
$619
Bid / Ask
— / —
YesSpread
—
Comments
0
Market data
Updated 30 minutes ago
Oct 14, 26, 12:31 PM UTCJan 1, 27, 4:59 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 0.1 percentage points
- Fees:
- Yes
Top holders
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Market depth · Yes
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
What will Katie Zacharia say in the next press briefing?
KalshiKatie Zacharia out as White House Press Secretary?
KalshiKatie Zacharia out as Press Secretary by which date?
PolymarketKatie Zacharia will remain press secretary through EOM (option)?
Manifold MarketsKatie Zacharia (press secretary) lasts longer than a mooch?
Manifold MarketsWho will attend a White House Press Briefing in 2026?
KalshiRules
This market will resolve to “Yes” if Katie Zacharia leads a White House press briefing as White House Press Secretary between market creation and December 31, 2026, 11:59 PM ET.
- Otherwise, this market will resolve to “No”.
- Resolution is based on who actually delivers the briefing from the podium, not on who is listed or announced in advance.
- Katie Zacharia will not qualify if she appears at a briefing only as a guest, or speaks only after being introduced by the individual leading the briefing.
- For the purposes of this market, a White House press briefing is an event listed on the public White House schedule as a press briefing. "New Media" briefings and special briefings including additional guests will qualify, so long as Katie Zacharia leads the briefing.
- Impromptu press gaggles, and remarks that are not listed on the public schedule as a press briefing, will not qualify.