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PolymarketMacro / FedUpdated 6m ago

Will Elon Musk post 240-259 tweets from September 11 to September 18, 2026?

Market probability
0.1%
Little changed over 24 hours
Less than a day until the event deadline
Deadline: September 18, 2026 at 12:00 PM ET

No meaningful repricing — the probability is steady.

The pricing is supported by healthy trading volume and market depth.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Strong

The pricing is supported by healthy trading volume and market depth.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$32.4 traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve according to the number of times Elon Musk (@elonmusk), posts on X from September 11 12:00 PM ET to September 18, 2026 12:00 PM ET. For the purposes of this market, only main feed posts, quote posts and reposts will count.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

This market will resolve according to the number of times Elon Musk (@elonmusk), posts on X from September 11 12:00 PM ET to September 18, 2026 12:00 PM ET. For the purposes of this market, only main feed posts, quote posts and reposts will count. Replies will NOT count towards the total - however, replies on the main feed such as https://x.com/elonmusk/status/1786073478711353576 will be counted by the tracker. Deleted posts will count as long as they remain available long enough to be captured by the tracker (~5 minutes). Community reposts which are not counted by the tracker not count toward the total. The resolution source for this market is the 'Post Counter' figure for posts found at https://xtracker.polymarket.com. Individual posts can be viewed by clicking "Export Data". If the tracker does not update correctly in accordance with the rules, X itself may be used as a secondary resolution source.

Resolution source: x.com

What could move this market next?

  • The market's deadline arrivesSeptember 18, 2026 at 12:00 PM ET

    The contract must resolve based on what has happened by this date.

  • Confirmation at the resolution source (x.com)

    The rules name this source as the basis for settlement.

Derived from the contract's own mechanics as of Sep 18, 6:18 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: high · expected error ±11 pts.

Resolving soonLegacy movement classifier: watch

What's happening

high classifier confidence
Resolving soon

Near resolution or with ambiguous wording, pricing is mechanically thin and can swing on tiny trades. Read end-of-life prices with extra caution.

  • Resolves in 0 day(s) — end-of-life pricing is mechanically thin

Read with caution —The latest price is a usable but caveated read — weigh it with the market state.

More details — reliability score, dynamics, durability
Reliability score
42Medium
Where the price path tends to go next386 observed
  • Stable consensus94%
  • Choppy / mean-reverting4%
  • Trend continuation1%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~38h
PredictabilityStable

Secondary read: leaning toward Quote-driven.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$67.4K

Liquidity

$34.1K

Total volume

$157.2K

Category
Macro / Fed
Venue
Polymarket
Open interest
Spread
0.0 pts
Best bid
0.1%
Best ask
0.1%
7-day range
0.1% – 0.4%
Resolves
Sep 18, 2026
Resolution
x.com
Change (pts)1H0.06H-0.224H-0.37D-0.3

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