Saudi Oil Pipeline (East-West) restarts by September 30?66%19.5Will Ethereum reach $2,600 in September?56%10.0Bitcoin Up or Down on September 17?82%5.0Opus 5.2 released in September?28%14.5Will WTI Crude Oil (WTI) hit (HIGH) $110 in September?25%21.0Israel x Iran ceasefire continues through November 30?72%4.5Will the Fed increase interest rates by 25 bps after the October 2026 meeting?45%8.0Will there be no change in Fed interest rates after the October 2026 meeting?55%7.0Will Linke win the most seats in the 2026 Berlin state elections?63%5.0Will Elon Musk post 160-179 tweets from September 11 to September 18, 2026?11%5.9Will the price of Bitcoin be above $78,000 on September 17?7%1.0Friedrich Merz out as Chancellor of Germany before December 31, 2026?20%8.0Israel x Iran ceasefire continues through October 31?81%6.0Will WTI Crude Oil (WTI) hit (HIGH) $115 in September?11%11.2US Average Gas Price Is $4.400 or more on September 21 2026?93%15.9Clarity Act (H.R.3633) signed into law in 2026?8%2.7
PolymarketMacro / FedUpdated 11m ago

Will Elon Musk post 320-339 tweets from September 11 to September 18, 2026?

Market probability
0.1%
Little changed over 24 hours
1 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$19 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 17, 2:54 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.

Quote-drivenLegacy movement classifier: watch

What's happening

medium classifier confidence
Quote-driven

A tight, deep, quote-driven book with little executed flow. The price is stable but reflects resting quotes more than active trading.

  • Tight spread on a liquid, calm market

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

More details — reliability score, dynamics, durability
Reliability score
53Medium
Where the price path tends to go next288 observed
  • Stable consensus95%
  • Choppy / mean-reverting3%
  • 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 ~4w
PredictabilityStable

Secondary read: leaning toward Trading normally.

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

$51.3K

Liquidity

$39.8K

Total volume

$100.6K

Category
Macro / Fed
Venue
Polymarket
Open interest
Spread
0.0 pts
Best bid
0.1%
Best ask
0.1%
7-day range
0.1% – 0.1%
Resolves
Sep 18, 2026
Resolution
x.com
Change (pts)1H0.06H0.024H0.07D0.0

Related markets