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icon for How many major Space Weather events this week? (May 17 - May 23)

How many major Space Weather events this week? (May 17 - May 23)

icon for How many major Space Weather events this week? (May 17 - May 23)

How many major Space Weather events this week? (May 17 - May 23)

0 99.5%

1 1.0%

2 <1%

3 <1%

Polymarket

$3,608 Vol.

0 99.5%

1 1.0%

2 <1%

3 <1%

Polymarket

$3,608 Vol.

0

$269 Vol.

Yes

1

$65 Vol.

No

2

$1,092 Vol.

No

3

$110 Vol.

No

4

$1,305 Vol.

No

5

$369 Vol.

No

6+

$397 Vol.

No

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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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.Low solar activity and limited Earth-directed eruptions have driven the strong market consensus toward zero major space weather events during May 17–23. NOAA’s Space Weather Prediction Center recorded only an isolated M1.4 flare on May 17 and a glancing coronal mass ejection from May 16 that produced active Kp 4 conditions around May 19 without reaching G1 geomagnetic storm thresholds. Far-side active regions and weak sunspot development yielded no significant radio blackouts, solar radiation storms, or strong geomagnetic disturbances meeting G3 or higher criteria. Quiet-to-unsettled conditions persisted through the period, consistent with short-term model forecasts showing low probability of M-class or stronger impacts. Resolution will hinge on final official NOAA verification of any borderline events.

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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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
$3,608
End Date
May 23, 2026
Market Opened
May 15, 2026, 4:39 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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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.

Outcome proposed: Yes

No dispute

Final outcome: Yes

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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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.Low solar activity and limited Earth-directed eruptions have driven the strong market consensus toward zero major space weather events during May 17–23. NOAA’s Space Weather Prediction Center recorded only an isolated M1.4 flare on May 17 and a glancing coronal mass ejection from May 16 that produced active Kp 4 conditions around May 19 without reaching G1 geomagnetic storm thresholds. Far-side active regions and weak sunspot development yielded no significant radio blackouts, solar radiation storms, or strong geomagnetic disturbances meeting G3 or higher criteria. Quiet-to-unsettled conditions persisted through the period, consistent with short-term model forecasts showing low probability of M-class or stronger impacts. Resolution will hinge on final official NOAA verification of any borderline events.

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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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
$3,608
End Date
May 23, 2026
Market Opened
May 15, 2026, 4:39 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 May 17, 2026, 12:00AM ET and May 23, 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 may not resolve until the end of the relevant timeframe. This market will resolve according to the final number of qualifying events at the end of this market's timeframe to allow for revisions to the data. 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 in the "ALERTS, WATCHES AND WARNINGS" table located under the heading titled "Current Space Weather Conditions" at 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.

Outcome proposed: Yes

No dispute

Final outcome: Yes

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Frequently Asked Questions

"How many major Space Weather events this week? (May 17 - May 23)" 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 "0" at 100%, followed by "1" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% 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? (May 17 - May 23)" is a newly created market on Polymarket, launched on May 15, 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? (May 17 - May 23)," 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? (May 17 - May 23)" is "0" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "1" at 0%. 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? (May 17 - May 23)" 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.