S&P 500 (SPX) Opens Up or Down on March 16?

Prediction market · Polymarket

Overview

This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day. This market will resolve to "Down" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day. E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day. If the two prices are exactly equal, this market will resolve 50-50. Note that all figures will be rounded to the nearest cent using standard rounding. If SPX does not trade at all during the regular session, the market will resolve 50-50. If either of the relevant days are shortened (for example, due to a market holiday schedule), the official open/close price published by S&P 500 Index for that shortened session will still be used for resolution. If the previous trading day has no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price. The resolution source for this market is the Wall Street Journal, specifically the Open/Close values published by the WSJ under "Historical Prices". US: https://www.wsj.com/market-data/stocks EMEA: https://www.wsj.com/market-data/stocks/emea ASIA: https://www.wsj.com/market-data/stocks/asia

Ticker

spx-opens-up-or-down-on-march-16-2026

Volume

15.1K

24h volume

10.5K

1w volume

15.1K

Open interest

0

Liquidity

2.4K

Liquidity CLOB

2.4K

Start

Mar 13, 2026

End

Mar 16, 2026

Status

Active

Access

Restricted

Created

Mar 16, 2026

Resolution source

https://www.wsj.com/market-data/stocks

Event ID

265149

Slug

spx-opens-up-or-down-on-march-16-2026

Markets

1

Tags

SPXUp or DownDailyIndiciesFinanceHide From New
Raw event data
{
  "id": "265149",
  "ticker": "spx-opens-up-or-down-on-march-16-2026",
  "slug": "spx-opens-up-or-down-on-march-16-2026",
  "title": "S&P 500 (SPX) Opens Up or Down on March 16?",
  "description": "This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nThis market will resolve to \"Down\" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nE.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.\n\nIf the two prices are exactly equal, this market will resolve 50-50. Note that all figures will be rounded to the nearest cent using standard rounding.\n\nIf SPX does not trade at all during the regular session, the market will resolve 50-50.\n\nIf either of the relevant days are shortened (for example, due to a market holiday schedule), the official open/close price published by S&P 500 Index for that shortened session will still be used for resolution.\n\nIf the previous trading day has no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price.\n\nThe resolution source for this market is the Wall Street Journal, specifically the Open/Close values published by the WSJ under \"Historical Prices\".\n\nUS: https://www.wsj.com/market-data/stocks\nEMEA: https://www.wsj.com/market-data/stocks/emea\nASIA: https://www.wsj.com/market-data/stocks/asia",
  "resolutionSource": "https://www.wsj.com/market-data/stocks",
  "startDate": "2026-03-13T12:03:54.390304Z",
  "creationDate": "2026-03-16T13:30:00Z",
  "endDate": "2026-03-16T20:00:00Z",
  "image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png",
  "icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png",
  "active": true,
  "closed": false,
  "archived": false,
  "new": false,
  "featured": false,
  "restricted": true,
  "liquidity": 2382.8512,
  "volume": 15058.66777,
  "openInterest": 0,
  "createdAt": "2026-03-13T12:00:00.735403Z",
  "updatedAt": "2026-03-16T01:09:54.563658Z",
  "competitive": 0.9497578117580017,
  "volume24hr": 10526.900441,
  "volume1wk": 15058.667770000004,
  "volume1mo": 15058.667770000004,
  "volume1yr": 15058.667770000004,
  "enableOrderBook": true,
  "liquidityClob": 2382.8512,
  "negRisk": false,
  "commentCount": 0,
  "markets": [
    {
      "id": "1575290",
      "question": "S&P 500 (SPX) Opens Up or Down on March 16?",
      "conditionId": "0x9d6819924b4a4d14bf1628daeab47db96d2a3635a274bbcdb779ece2083e303b",
      "slug": "spx-opens-up-or-down-on-march-16-2026",
      "resolutionSource": "https://www.wsj.com/market-data/stocks",
      "endDate": "2026-03-16T20:00:00Z",
      "liquidity": "2337.0873",
      "startDate": "2026-03-13T12:02:39.966799Z",
      "image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png",
      "icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png",
      "description": "This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nThis market will resolve to \"Down\" if the official S&P 500 Index open price for S&P 500 (SPX) on March 16 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nE.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.\n\nIf the two prices are exactly equal, this market will resolve 50-50. Note that all figures will be rounded to the nearest cent using standard rounding.\n\nIf SPX does not trade at all during the regular session, the market will resolve 50-50.\n\nIf either of the relevant days are shortened (for example, due to a market holiday schedule), the official open/close price published by S&P 500 Index for that shortened session will still be used for resolution.\n\nIf the previous trading day has no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price.\n\nThe resolution source for this market is the Wall Street Journal, specifically the Open/Close values published by the WSJ under \"Historical Prices\".\n\nUS: https://www.wsj.com/market-data/stocks\nEMEA: https://www.wsj.com/market-data/stocks/emea\nASIA: https://www.wsj.com/market-data/stocks/asia",
      "outcomes": "[\"Up\", \"Down\"]",
      "outcomePrices": "[\"0.685\", \"0.315\"]",
      "volume": "15144.318024999997",
      "active": true,
      "closed": false,
      "marketMakerAddress": "",
      "createdAt": "2026-03-13T12:00:01.416728Z",
      "updatedAt": "2026-03-16T01:13:29.887313Z",
      "new": false,
      "featured": false,
      "submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
      "archived": false,
      "resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
      "restricted": true,
      "questionID": "0xb45d676d55a8bcc844c21238973af89f7e13c5232f12a59eaf9b8d511d949788",
      "enableOrderBook": true,
      "orderPriceMinTickSize": 0.01,
      "orderMinSize": 5,
      "volumeNum": 15144.318024999997,
      "liquidityNum": 2337.0873,
      "endDateIso": "2026-03-16",
      "startDateIso": "2026-03-13",
      "hasReviewedDates": true,
      "volume24hr": 10612.550696,
      "volume1wk": 15144.318025,
      "volume1mo": 15144.318025,
      "volume1yr": 15144.318025,
      "clobTokenIds": "[\"39128052604340360323787506738873574695555502364362805509666329762036709860168\", \"37106160569205785985046975655319409604494307004810916777104924795210809638109\"]",
      "umaBond": "500",
      "umaReward": "2",
      "volume24hrClob": 10612.550696,
      "volume1wkClob": 15144.318025,
      "volume1moClob": 15144.318025,
      "volume1yrClob": 15144.318025,
      "volumeClob": 15144.318024999997,
      "liquidityClob": 2337.0873,
      "customLiveness": 0,
      "acceptingOrders": true,
      "negRisk": false,
      "negRiskRequestID": "",
      "ready": false,
      "funded": false,
      "acceptingOrdersTimestamp": "2026-03-13T12:01:33Z",
      "cyom": false,
      "competitive": 0.9669075878072954,
      "pagerDutyNotificationEnabled": false,
      "approved": true,
      "rewardsMinSize": 50,
      "rewardsMaxSpread": 4.5,
      "spread": 0.09,
      "lastTradePrice": 0.64,
      "bestBid": 0.64,
      "bestAsk": 0.73,
      "automaticallyActive": true,
      "clearBookOnStart": true,
      "manualActivation": false,
      "negRiskOther": false,
      "umaResolutionStatuses": "[]",
      "pendingDeployment": false,
      "deploying": false,
      "deployingTimestamp": "2026-03-13T12:00:09.360171Z",
      "rfqEnabled": false,
      "eventStartTime": "2026-03-16T13:30:00Z",
      "holdingRewardsEnabled": false,
      "feesEnabled": false,
      "requiresTranslation": false,
      "feeType": null
    }
  ],
  "series": [
    {
      "id": "10945",
      "ticker": "spx-open-daily-up-or-down",
      "slug": "spx-open-daily-up-or-down",
      "title": "SPX Open Daily Up or Down",
      "seriesType": "single",
      "recurrence": "daily",
      "image": "",
      "icon": "",
      "active": true,
      "closed": false,
      "archived": false,
      "createdAt": "2026-01-20T23:52:27.172795Z",
      "updatedAt": "2026-03-16T01:10:01.547556Z",
      "volume24hr": 10526.900441,
      "volume": 15058.66777,
      "liquidity": 2382.8512,
      "commentCount": 483,
      "requiresTranslation": false
    }
  ],
  "tags": [
    {
      "id": "102683",
      "label": "SPX",
      "slug": "spx",
      "forceShow": false,
      "createdAt": "2025-10-15T01:10:48.677409Z",
      "updatedAt": "2026-03-09T22:26:22.774794Z",
      "isCarousel": false,
      "requiresTranslation": false
    },
    {
      "id": "102127",
      "label": "Up or Down",
      "slug": "up-or-down",
      "forceShow": true,
      "createdAt": "2025-05-09T20:56:58.880785Z",
      "updatedAt": "2026-03-09T22:33:38.505979Z",
      "isCarousel": false,
      "requiresTranslation": false
    },
    {
      "id": "102281",
      "label": "Daily",
      "slug": "daily",
      "forceShow": false,
      "createdAt": "2025-06-17T20:32:17.531984Z",
      "updatedAt": "2026-03-09T22:28:43.539978Z",
      "isCarousel": false,
      "requiresTranslation": false
    },
    {
      "id": "102682",
      "label": "Indicies",
      "slug": "indicies",
      "forceShow": false,
      "createdAt": "2025-10-15T01:07:50.281509Z",
      "updatedAt": "2026-03-09T22:31:44.386508Z",
      "isCarousel": false,
      "requiresTranslation": false
    },
    {
      "id": "120",
      "label": "Finance",
      "slug": "finance",
      "forceShow": false,
      "publishedAt": "2023-11-02 21:22:21.615+00",
      "createdAt": "2023-11-02T21:22:21.62Z",
      "updatedAt": "2026-03-09T22:30:44.068593Z",
      "isCarousel": false,
      "requiresTranslation": false
    },
    {
      "id": "102169",
      "label": "Hide From New",
      "slug": "hide-from-new",
      "forceShow": false,
      "createdAt": "2025-05-23T18:47:07.430147Z",
      "updatedAt": "2026-03-09T22:32:58.476595Z",
      "isCarousel": false,
      "requiresTranslation": false
    }
  ],
  "cyom": false,
  "showAllOutcomes": true,
  "showMarketImages": false,
  "enableNegRisk": false,
  "automaticallyActive": true,
  "startTime": "2026-03-16T13:30:00Z",
  "seriesSlug": "spx-open-daily-up-or-down",
  "negRiskAugmented": false,
  "pendingDeployment": false,
  "deploying": false,
  "requiresTranslation": false
}