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Concepts › Signals › Volume › Volume & averages

prev_day_volume

Previous trading day’s total volume (raw shares).

Watch this signal live on real tickers: Open in Explore →

At a glance

Typebigint
GroupVolume
CategoryVolume & averages
Unitshares
Update cadence1 min · mkt hrs
Intervals1d
Universeall tickers
Historyfull · since 2003
Nullableyes — NULL where not applicable

Absolute trading quantities: today's and prior volumes, dollar volume, averages, bar-level counts.

Query it

Every applicable form factor, grouped by endpoint family. Swap YOUR_KEY for the value from /dashboard/keys. Response payloads are real captures, sampled 2026-08-18 and trimmed — your run's values and dates will differ.

Use signals /v2/signals/{signal}

One signal across the market: who matches now, who matched then, and a push when someone starts. Docs →

Live — every ticker with prev_day_volume above a cutoff
curl -G "https://api.tickerbot.io/v2/signals/prev_day_volume" \
  --data-urlencode "condition=> 21286835" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-08-18, trimmed)
{
 "as_of": "2026-08-18T00:25:18.071Z",
 "signal": "prev_day_volume",
 "condition": "> 21286835",
 "universe": null,
 "count": 2,
 "results": [
  {
   "ticker": "MDXH",
   "name": "MDxHealth SA Ordinary Shares",
   "value": 326589347
  },
  {
   "ticker": "SURG",
   "name": "SurgePays, Inc. Common Stock",
   "value": 290808324
  }
 ]
}
As-of — the same read at a past date
curl -G "https://api.tickerbot.io/v2/signals/prev_day_volume" \
  --data-urlencode "condition=> 21286835" \
  -d "asof=2026-05-20" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-08-18, trimmed)
{
 "as_of": "2026-05-20",
 "signal": "prev_day_volume",
 "condition": "> 21286835",
 "universe": null,
 "count": 2,
 "results": [
  {
   "ticker": "SOXS",
   "name": "Direxion Daily Semiconductor Bear 3X ETF",
   "value": 539075853
  },
  {
   "ticker": "TZA",
   "name": "Direxion Daily Small Cap Bear 3x ETF",
   "value": 473147057
  }
 ]
}
Subscribe — webhook when a ticker starts matching
curl -X POST "https://api.tickerbot.io/v2/signals/prev_day_volume/subscribe" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"condition": "> 21286835", "target_url": "https://example.com/hooks/tickerbot"}'

Returns 201 with the created webhook — the same shape as GET /v2/webhooks/{id}, plus a one-time signing_secret for HMAC verification.

Use scan /v2/scan

The whole market through a WHERE clause — this signal composed freely with any other column. Docs →

Live — the whole market, ranked by this column
curl -G "https://api.tickerbot.io/v2/scan" \
  --data-urlencode "q=prev_day_volume IS NOT NULL" \
  -d "order=prev_day_volume" -d "columns=prev_day_volume" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-08-18, trimmed)
{
 "as_of": "2026-08-18T00:25:21.295Z",
 "query": {
  "q": "prev_day_volume IS NOT NULL",
  "limit": 2,
  "order": "prev_day_volume",
  "dir": "desc",
  "fields": [
   "prev_day_volume"
  ],
  "full": false,
  "universe": null,
  "asset_class": null
 },
 "count": 2,
 "results": [
  {
   "ticker": "MDXH",
   "name": "MDxHealth SA Ordinary Shares",
   "asset_class": "stocks",
   "asset_type": "CS",
   "price": 0.858,
   "day_change_pct": 0.0619,
   "gap_pct": -0.1168,
   "relative_volume": null,
   "market_cap": 41502532,
   "prev_day_volume": 326589347
  },
  {
   "ticker": "SURG",
   "name": "SurgePays, Inc. Common Stock",
   "asset_class": "stocks",
   "asset_type": "CS",
   "price": 0.274,
   "day_change_pct": -0.0284,
   "gap_pct": -0.0961,
   "relative_volume": null,
   "market_cap": 7084374,
   "prev_day_volume": 290808324
  }
 ]
}
As-of — the same scan at a past date
curl -G "https://api.tickerbot.io/v2/scan" \
  --data-urlencode "q=prev_day_volume IS NOT NULL" \
  -d "order=prev_day_volume" -d "columns=prev_day_volume" \
  -d "asof=2026-05-20" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-08-18, trimmed)
{
 "as_of": "2026-05-20",
 "query": {
  "q": "prev_day_volume IS NOT NULL",
  "asof": "2026-05-20",
  "interval": "auto",
  "limit": 2,
  "order": "prev_day_volume",
  "dir": "desc",
  "fields": [
   "prev_day_volume"
  ],
  "full": false,
  "universe": null,
  "asset_class": null
 },
 "count": 2,
 "results": [
  {
   "ticker": "SOXS",
   "name": "Direxion Daily Semiconductor Bear 3X ETF",
   "asset_class": "stocks",
   "asset_type": "ETF",
   "price": 8.54,
   "day_change_pct": -13.997985901309171,
   "gap_pct": -6.344410876132921,
   "relative_volume": 1.2931886816542713,
   "market_cap": null,
   "prev_day_volume": 539075853
  },
  {
   "ticker": "TZA",
   "name": "Direxion Daily Small Cap Bear 3x ETF",
   "asset_class": "stocks",
   "asset_type": "ETF",
   "price": 4.83,
   "day_change_pct": -7.293666026871399,
   "gap_pct": -2.1113243761996223,
   "relative_volume": 1.8009887796296526,
   "market_cap": null,
   "prev_day_volume": 473147057
  }
 ]
}
Subscribe — webhook on a market-wide condition
curl -X POST "https://api.tickerbot.io/v2/scan/subscribe" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"q": "prev_day_volume > 21286835", "target_url": "https://example.com/hooks/tickerbot"}'

Returns 201 with the created webhook object; deliveries carry the tickers matching the condition at each evaluation.

Use series /v2/series

Its history over time, on one aligned grid. Docs →

History — the column on an aligned time grid
curl "https://api.tickerbot.io/v2/series?tickers=AAPL,MSFT&columns=close,prev_day_volume" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-08-18, trimmed)
{
 "as_of": "2026-08-18T00:25:23.871Z",
 "interval": "1d",
 "tickers": [
  "AAPL",
  "MSFT"
 ],
 "columns": [
  "close",
  "prev_day_volume"
 ],
 "count": 6,
 "series": {
  "AAPL": [
   {
    "t": "2026-08-12",
    "close": 302.25,
    "prev_day_volume": 37476746
   },
   {
    "t": "2026-08-13",
    "close": 305.26,
    "prev_day_volume": 41657768
   },
   {
    "t": "2026-08-14",
    "close": 305.93,
    "prev_day_volume": 40349289
   }
  ],
  "MSFT": [
   {
    "t": "2026-08-12",
    "close": 492.43,
    "prev_day_volume": 23049791
   },
   {
    "t": "2026-08-13",
    "close": 496.88,
    "prev_day_volume": 29001478
   },
   {
    "t": "2026-08-14",
    "close": 495.4,
    "prev_day_volume": 23038979
   }
  ]
 }
}

Same grammar on scan, series, and webhooks; state reads take ?asof= for point-in-time answers.

Related signals — Volume & averages