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Doomsday Clock setting announcement markets

The Doomsday Clock is a symbol created in 1947 by the Bulletin of the Atomic Scientists to communicate how close the experts believe humanity is to catastrophe. Each year the Bulletin announces a new setting, and some venues list markets on whether the clock will move closer to midnight. These are unusual questions because the outcome is a judgment by an expert board, announced at a planned event. This SoftCta guide explains how to read them.

How the setting is decided

The Bulletin's Science and Security Board, in consultation with its Board of Sponsors, reviews nuclear risk, climate change, biological threats and disruptive technologies. It then decides whether to move the hands. There is no formula; the statement explains the reasoning. In January 2025, the board set the clock at 89 seconds to midnight, the closest it had been at that time. Verify the latest setting in the Bulletin's archive.

Timing

The announcement is usually made in January at a press event that is streamed online. Markets typically close before the event and settle on the published statement. Because the date is announced in advance, the main uncertainty is the board's decision, not when it will be known. See our guide on announcement versus occurrence wording.

Units and thresholds

For decades the clock was expressed in minutes. In 2020 the board switched to seconds, moving it to 100 seconds to midnight. Contracts may ask:

• Direction: closer, farther or unchanged.
• Threshold: will the clock be set at or below a stated number of seconds.
• Exact value: a bracket or scalar question on the number of seconds.

Each depends on precise wording. Our guides on rounding and threshold precision and scalar and range payouts explain the details.

The unchanged outcome

The board has left the clock unchanged in several years. A market asking whether it will move closer resolves No if it stays the same, unless the contract states otherwise. Our guide to status quo outcomes explains why no change can be underpriced when news is alarming.

What informs a view

The Bulletin's statements often refer to specific developments: arms control treaties, nuclear tests, conflicts, climate data and new technologies. Reading the previous statement and asking whether those concerns have eased or worsened is a reasonable approach. Remember that moving the clock is also a communication choice. The board may prefer small changes, and it rarely moves the clock away from midnight in tense periods. Our geopolitics resolution guide offers context on related questions.

A reading habit

Note the current setting, the units in the contract, what happens if the clock is unchanged and when the market closes relative to the announcement. Convert prices with the implied probability tool and verify live prices on the venue.

Primary sources SoftCta readers open

• Bulletin of the Atomic Scientists annual Doomsday Clock statement
• Bulletin archive of past clock settings
• Live stream or recording of the announcement event
• Venue rules defining direction and units

Reading the quote step by step

• Read the full title and rules, including the named settlement source and the time zone.
• Convert the Yes and No prices to implied probabilities and note the gap between them.
• Subtract fees and spread to see the effective price you would actually face.
• Write your own probability range and the evidence behind it, then compare.
• Check related and near-duplicate markets on other venues for consistency.

Closing SoftCta checklist

• Re-read the venue definition in your own words before reacting to a price.
• Convert prices with fee and spread awareness; verify live cents on the operator.
• Prefer primary settlement sources over secondary headlines and social summaries.
• Treat ChanceWire hubs, movers, and tools as orientation — not order entry.
• Confirm age, location, and product eligibility; SoftCta pages will not suggest location spoofing.
• If clarity is incomplete, watching is a complete SoftCta outcome — no pick-selling urgency required.

SoftCta habits

• Write your own probability range before checking the crowd price.
• Prefer dated primary sources over social summaries.
• Compare related markets when a single book looks extreme.
• Size curiosity with fees and depth in mind; substantial risk of loss.