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How many major Space Weather events this week? (April 12 - April 18)

Market icon

How many major Space Weather events this week? (April 12 - April 18)

<3 44%

5 42%

6 41%

8+ 41%

Polymarket
NEW

<3 44%

5 42%

6 41%

8+ 41%

Polymarket
NEW

<3

$2 Vol.

44%

3

$266 Vol.

40%

4

$3,009 Vol.

40%

5

$2 Vol.

42%

6

$2 Vol.

41%

7

$2 Vol.

40%

8+

$2 Vol.

41%

This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No". A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe. If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket. This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#) If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.Trader sentiment is tightly split for major space weather events—defined by NOAA Space Weather Prediction Center as G3+ geomagnetic storms, S3+ solar radiation storms, or R3+ radio blackouts from April 12–18—with 8+ at 45.5% edging <3 at 44.5%, reflecting deep uncertainty in solar active region evolution during solar cycle 25's decline. The first X-class flare of 2026 erupted April 11, potentially from an emerging sunspot complex, raising odds for multiple R3+ blackouts if it persists and rotates Earthward, while lingering coronal mass ejections could trigger G3 storms. However, SWPC's recent 27-day outlook signals low geomagnetic activity with slim flare probabilities, tilting toward few events absent prolific flaring or well-timed CME impacts. Daily SWPC updates through next week's close will clarify model consensus on these volatile drivers.

This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No".

A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation

This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe.

If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket.

This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#)

If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.
Volume
$3,287
End Date
Apr 18, 2026
Market Opened
Apr 10, 2026, 4:27 PM ET
This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No". A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe. If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket. This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#) If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.
This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No". A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe. If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket. This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#) If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.Trader sentiment is tightly split for major space weather events—defined by NOAA Space Weather Prediction Center as G3+ geomagnetic storms, S3+ solar radiation storms, or R3+ radio blackouts from April 12–18—with 8+ at 45.5% edging <3 at 44.5%, reflecting deep uncertainty in solar active region evolution during solar cycle 25's decline. The first X-class flare of 2026 erupted April 11, potentially from an emerging sunspot complex, raising odds for multiple R3+ blackouts if it persists and rotates Earthward, while lingering coronal mass ejections could trigger G3 storms. However, SWPC's recent 27-day outlook signals low geomagnetic activity with slim flare probabilities, tilting toward few events absent prolific flaring or well-timed CME impacts. Daily SWPC updates through next week's close will clarify model consensus on these volatile drivers.

This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No".

A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation

This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe.

If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket.

This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#)

If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.
Volume
$3,287
End Date
Apr 18, 2026
Market Opened
Apr 10, 2026, 4:27 PM ET
This market will resolve according to the number of geomagnetic storms, solar radiation storms, or radio blackouts with a severity level of 3 or greater which occur between April 12, 2026, 12:00AM ET and April 18, 2026, 11:59PM ET. Otherwise, this market will resolve to "No". A G3 event is a geomagnetic storm with a classification indicating "Strong". An S3 event is a solar radiation storm with a "Strong" classification. An R3 event is a radio blackout event with a classification indicating "Strong". More information on the space weather classification criteria can be found here: https://www.swpc.noaa.gov/noaa-scales-explanation This market will resolve immediately upon the occurrence of a qualifying event. Any later revisions or corrections will not be considered. Only the initial report of an ongoing event with multiple reports will qualify, unless the rating of the event is upgraded to a qualifying level from a non-qualifying level within this market's timeframe. If the reported data falls exactly between two brackets, this market will resolve to the higher range bracket. This market will resolve based on information from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center under the heading marked "Current Space Weather Conditions". (https://www.swpc.noaa.gov/products/alerts-watches-and-warnings#) If the resolution source becomes permanently unavailable, this market will resolve to the lowest bracket.

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Frequently Asked Questions

"How many major Space Weather events this week? (April 12 - April 18)" is a prediction market on Polymarket with 7 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "<3" at 44%, followed by "5" at 42%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 44¢ implies that the market collectively assigns a 44% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"How many major Space Weather events this week? (April 12 - April 18)" is a newly created market on Polymarket, launched on Apr 10, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "How many major Space Weather events this week? (April 12 - April 18)," browse the 7 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "How many major Space Weather events this week? (April 12 - April 18)" is "<3" at 44%, meaning the market assigns a 44% chance to that outcome. The next closest outcome is "5" at 42%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "How many major Space Weather events this week? (April 12 - April 18)" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.