Crossbook
live

Israel military action against Lebanon on September 10?

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

SettledContract settles 10 Sept 2026Last checked 10 Sept 2026, 23:55 UTC
PM

Bid/ask midpoint · retrieved 2026-09-10T23:55:26.880Z. Venue quote-update time is unavailable. Readings can be asynchronous.

86.1%bid 76.1% / ask 96.2%24h volume $4K · liquidity $6Kas of 10 Sept, 23:55 UTC · not refreshed recentlyView on Polymarket

Crossbook forecast

63.0%against a market price of 77.5% at the timeYES

Logged 7 Sept 2026, 01:36 UTC · Brier 0.1369

  • Israel conducted qualifying strikes on Lebanon on Sept. 4 and Sept. 6, including deadly air strikes in southern towns and Nabatieh-area targets, showing current operational cadence rather than an isolated incident.
  • The strikes are embedded in a retaliation cycle: Israel cited Hezbollah drone attacks against IDF troops as justification for Sept. 4 and Sept. 6 strikes, making further tit-for-tat action by Sept. 10 plausible.
  • Israel is physically positioned for rapid action, with forces inside a self-declared security zone in southern Lebanon and political statements rejecting withdrawal until Hezbollah is disarmed.
  • The June framework and US-Iran MOU have reduced but not stopped strikes, which tempers the probability and argues against near-certainty.
  • A possible unapproved 'Grey Line' pullback and post-June decrease in attack frequency are the main de-escalatory signals, but they are not decisive as of Sept. 7.
  • Election-linked incentives to appear tough ahead of October 2026 may modestly raise the risk of continued action, though this is more narrative than direct operational evidence.

What would change it: A confirmed ceasefire implementation, Israeli pullback approval, or two to three consecutive strike-free days before Sept. 10 would substantially lower the estimate.

Settlement source

-14.5 probability points from the market at generation · med confidence · Polymarket

Base rate: In an active Israel-Lebanon escalation with repeated Israeli strikes over consecutive recent days, the base rate for at least one qualifying Israeli strike on a given near-term day is elevated, roughly coin-flip or better, but a specific calendar day remains uncertain.

Chosen by hand.

Settlement

Every answer this call has been given, oldest first. Nothing is edited: a correction is a new entry beside the one it replaces.

  1. YESsettled 11 Sept 2026, 13:07 UTC · recorded 11 Sept 2026, 13:07 UTC · entered by handsettlement

What this call was reading

  • Israeli air strikes killed three people and injured at least 23 in Kfar Reman and other southern Lebanon towns on September 4, 2026. as of 2026-09-04 · aljazeera.com · within 90 days of this call
  • The Israeli military launched another wave of strikes in Lebanon on the evening of September 4, 2026, citing an attempted Hezbollah drone strike on soldiers in the IDF-occupied buffer zone. as of 2026-09-05 · haaretz.com · within 90 days of this call
  • Israeli strikes across southern Lebanon on September 6, 2026 killed at least four people, including two women, and wounded at least 20 others. as of 2026-09-06 · aljazeera.com · within 90 days of this call
  • An Israeli strike on September 6, 2026 destroyed part of the disused Ghandour hospital in Nabatieh al-Fawqa, which Israel said had been turned into a Hezbollah command center. as of 2026-09-06 · timesofisrael.com · within 90 days of this call
  • Israel's military said the September 6, 2026 strikes were in retaliation for Hezbollah launching two explosive drones toward Israeli troops in the Ali Taher Ridge area. as of 2026-09-06 · timesofisrael.com · within 90 days of this call
  • Israeli forces remain deployed inside a self-declared security zone extending roughly 10 kilometers into southern Lebanon along the border. as of 2026-09-06 · timesofisrael.com · within 90 days of this call
  • Israeli Defense Minister Israel Katz said Israel would not withdraw from its southern Lebanon security zone until Hezbollah had been disarmed throughout the country. as of 2026-09-06 · timesofisrael.com · within 90 days of this call
  • Israel and Lebanon signed a US-brokered framework agreement on June 26, 2026 aimed at paving the way toward an eventual peace deal, but Israeli strikes have continued since despite the truce. as of 2026-09-06 · timesofisrael.com · within 90 days of this call
  • The number of Israeli attacks on Lebanon has decreased since a US-Iran Memorandum of Understanding on the broader conflict in June 2026, though strikes continue. as of 2026-09-06 · aljazeera.com · within 90 days of this call
  • Israel is considering pulling back troops occupying Lebanese territory closer to the Israeli border to a new 'Grey Line', though the plan has not been approved by Israel's political leadership. as of 2026-09-06 · aljazeera.com · within 90 days of this call
  • Middle East expert Karim Emile Bitar linked Israel's escalation in Lebanon to Israeli elections scheduled for October 2026. as of 2026-09-05 · thenationalnews.com · within 90 days of this call

Polymarket prices this at 86.1%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.

Volume over the last 24 hours is modest, at about $3,577 on the busier venue.

This market has settled. The page is kept as a record of what the market said while the question was open, and of what Crossbook called.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.

This call is line t-0169 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.