gap
Overnight gap as percent: `(today_open − prev_close) / prev_close`. Signed — positive = gap up, negative = gap down. Use this for custom gap thresholds; the boolean shortcuts `gap_up` (≥3%) and `gap_up_extreme` (≥10%) cover the canonical levels.
Watch this signal live on real tickers: Open in Explore →
At a glance
| Type | numeric |
| Group | Price action |
| Category | Gaps |
| Unit | % |
| Update cadence | 1 min · mkt hrs |
| Intervals | 1m/1h/1d |
| Universe | all tickers |
| History | full · since 2003 |
| Nullable | yes — NULL where not applicable |
Opening gaps: size, direction, extremes, and intraday fill.
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 gap above a cutoff
curl -G "https://api.tickerbot.io/v2/signals/gap" \
--data-urlencode "condition=> 2.63" \
-H "Authorization: Bearer YOUR_KEY"Response (sampled 2026-08-18, trimmed)
{
"as_of": "2026-08-18T00:23:54.370Z",
"signal": "gap",
"condition": "> 2.63",
"universe": null,
"count": 2,
"results": [
{
"ticker": "ARGX",
"name": "argenx SE American Depositary Shares",
"value": 76.04
},
{
"ticker": "SNDK",
"name": "Sandisk Corporation Common Stock",
"value": 59.635
}
]
}As-of — the same read at a past date
curl -G "https://api.tickerbot.io/v2/signals/gap" \
--data-urlencode "condition=> 2.63" \
-d "asof=2026-05-20" \
-H "Authorization: Bearer YOUR_KEY"Response (sampled 2026-08-18, trimmed)
{
"as_of": "2026-05-20",
"signal": "gap",
"condition": "> 2.63",
"universe": null,
"count": 2,
"results": [
{
"ticker": "BRK.A",
"name": "Berkshire Hathaway Inc.",
"value": 400
},
{
"ticker": "SNDK",
"name": "Sandisk Corporation Common Stock",
"value": 54.690000000000055
}
]
}Subscribe — webhook when a ticker starts matching
curl -X POST "https://api.tickerbot.io/v2/signals/gap/subscribe" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_KEY" \
-d '{"condition": "> 2.63", "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=gap IS NOT NULL" \
-d "order=gap" -d "columns=gap" \
-H "Authorization: Bearer YOUR_KEY"Response (sampled 2026-08-18, trimmed)
{
"as_of": "2026-08-18T00:23:58.356Z",
"query": {
"q": "gap IS NOT NULL",
"limit": 2,
"order": "gap",
"dir": "desc",
"fields": [
"gap"
],
"full": false,
"universe": null,
"asset_class": null
},
"count": 2,
"results": [
{
"ticker": "ARGX",
"name": "argenx SE American Depositary Shares",
"asset_class": "stocks",
"asset_type": "ADRC",
"price": 993.843,
"day_change_pct": 0.1675,
"gap_pct": 0.0893,
"relative_volume": null,
"market_cap": 53257547730,
"gap": 76.04
},
{
"ticker": "SNDK",
"name": "Sandisk Corporation Common Stock",
"asset_class": "stocks",
"asset_type": "CS",
"price": 1805.054,
"day_change_pct": 0.0999,
"gap_pct": 0.0363,
"relative_volume": 1.0823,
"market_cap": 239602060000,
"gap": 59.635
}
]
}As-of — the same scan at a past date
curl -G "https://api.tickerbot.io/v2/scan" \
--data-urlencode "q=gap IS NOT NULL" \
-d "order=gap" -d "columns=gap" \
-d "asof=2026-05-20" \
-H "Authorization: Bearer YOUR_KEY"Response (sampled 2026-08-18, trimmed)
{
"as_of": "2026-05-20",
"query": {
"q": "gap IS NOT NULL",
"asof": "2026-05-20",
"interval": "auto",
"limit": 2,
"order": "gap",
"dir": "desc",
"fields": [
"gap"
],
"full": false,
"universe": null,
"asset_class": null
},
"count": 2,
"results": [
{
"ticker": "BRK.A",
"name": "Berkshire Hathaway Inc.",
"asset_class": "stocks",
"asset_type": "CS",
"price": 720840,
"day_change_pct": 0.03330557868442965,
"gap_pct": 0.05550929780738274,
"relative_volume": 1.7831074035453596,
"market_cap": null,
"gap": 400
},
{
"ticker": "SNDK",
"name": "Sandisk Corporation Common Stock",
"asset_class": "stocks",
"asset_type": "CS",
"price": 1392.56,
"day_change_pct": 0.6701414743112422,
"gap_pct": 3.9536178241728095,
"relative_volume": 0.5867784560813467,
"market_cap": 207491440000,
"gap": 54.690000000000055
}
]
}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": "gap > 2.63", "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,gap" \
-H "Authorization: Bearer YOUR_KEY"Response (sampled 2026-08-18, trimmed)
{
"as_of": "2026-08-18T00:24:01.156Z",
"interval": "1d",
"tickers": [
"AAPL",
"MSFT"
],
"columns": [
"close",
"gap"
],
"count": 6,
"series": {
"AAPL": [
{
"t": "2026-08-12",
"close": 302.25,
"gap": 0.18999999999999773
},
{
"t": "2026-08-13",
"close": 305.26,
"gap": 1.9599999999999795
},
{
"t": "2026-08-14",
"close": 305.93,
"gap": 0.7400000000000091
}
],
"MSFT": [
{
"t": "2026-08-12",
"close": 492.43,
"gap": -3.819999999999993
},
{
"t": "2026-08-13",
"close": 496.88,
"gap": 0.8349999999999795
},
{
"t": "2026-08-14",
"close": 495.4,
"gap": -0.5249999999999773
}
]
}
}Same grammar on scan, series, and webhooks; state reads take ?asof= for point-in-time answers.