Will Bitcoin reach $85,000 in September?44%26.0Will Bitcoin reach $82,500 in September?75%42.0Will Ethereum reach $2,700 in September?74%48.5US announces end of Iranian blockade by October 31, 2026?36%3.0Will Anthropic IPO by October 31, 2026?5%48.7Will United Russia (ER) gain the most seats in the next Russian parliamentary election?76%1.0Will Xi Jinping visit US by September 23?83%9.0Russia Elections: United Russia Wins Every Region?68%6.0Will Bitcoin reach $82,000 September 14-20?45%18.3Will Xi Jinping visit US by September 24?86%4.0Will the Fed increase interest rates by 25 bps after the October 2026 meeting?56%5.0Will the price of Bitcoin be above $82,000 on September 19?6%2.2US x Iran ceasefire continues through September 30?79%4.0Will Aleksandar Vučić be the next Prime Minister of Serbia?38%12.7Saudi Oil Pipeline (East-West) restarts by September 30?51%9.0Will AfD win the most seats in the 2026 Mecklenburg-Vorpommern parliamentary elections?50%8.0
PolymarketMacro / FedUpdated 15m ago

Will Elon Musk post 65-89 tweets from September 17 to September 19, 2026?

Market probability
7.5%
Little changed over 24 hours
Less than a day until the event deadline
Deadline: September 19, 2026 at 12:00 PM ET

No meaningful 24-hour repricing, though the price is still shifting on shorter windows.

The pricing has weak support: healthy trading volume and market depth, a tight spread.

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?

Weak

The pricing has weak support: healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Unsettled

The probability moved another 2.7 points in the past hour — the market is still repricing.

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$1.3K 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 17 12:00 PM ET to September 19, 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 17 12:00 PM ET to September 19, 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 19, 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 19, 4:08 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: low · expected error ±28 pts.

Resolving soonLegacy movement classifier: noisy

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 —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
6Low
Where the price path tends to go next373 observed
  • Choppy / mean-reverting87%
  • Stable consensus4%
  • Thin-liquidity spike3%

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

DurabilityMedium· half-life <1h
PredictabilityElevated irreducibility

Secondary read: leaning toward Thin market.

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

$70.6K

Liquidity

$8.6K

Total volume

$84.7K

Category
Macro / Fed
Venue
Polymarket
Open interest
Spread
0.8 pts
Best bid
7.1%
Best ask
7.9%
7-day range
7.2% – 11.1%
Resolves
Sep 19, 2026
Resolution
x.com
Change (pts)1H-2.76H+0.324H+0.37D+0.3

Related markets