← tickerbot.io
View as markdown
Concepts › Signals › Technicals › Volatility & bands

at_bollinger_lower

Price has reached the lower Bollinger band.

definition
abs(close - bb_lower) / close < 0.02 (within 2% of the lower band, above or below)

Swap YOUR_KEY for a key from /dashboard/keys. Responses are real captures from 2026-09-18, trimmed.

Every ticker matching this signal /v2/signals/{signal}

Live — every ticker where it fires now
curl "https://api.tickerbot.io/v2/signals/at_bollinger_lower" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-09-18T14:37:34.367Z",
 "signal": "at_bollinger_lower",
 "condition": null,
 "universe": null,
 "count": 2,
 "results": [
  {
   "ticker": "AA",
   "name": "Alcoa Corporation",
   "value": true
  },
  {
   "ticker": "AAA",
   "name": "Alternative Access First Priority CLO Bond ETF",
   "value": true
  }
 ]
}
As-of — the same read at a past date
curl "https://api.tickerbot.io/v2/signals/at_bollinger_lower?asof=2026-07-04" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-06-20",
 "signal": "at_bollinger_lower",
 "condition": null,
 "universe": null,
 "count": 2,
 "results": [
  {
   "ticker": "ACCS",
   "name": "ACCESS Newswire Inc.",
   "value": true
  },
  {
   "ticker": "ACI",
   "name": "Albertsons Companies, Inc.",
   "value": true
  }
 ]
}
Subscribe — webhook when a ticker starts matching
curl -X POST "https://api.tickerbot.io/v2/signals/at_bollinger_lower/subscribe" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"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.

The whole market, filtered on it /v2/scan

Live — the whole market, filtered on this signal
curl -X POST "https://api.tickerbot.io/v2/scan" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{ "q": "at_bollinger_lower" }'
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-09-18T14:37:34.957Z",
 "query": {
  "q": "at_bollinger_lower",
  "limit": 2,
  "order": "change_1d_pct",
  "dir": "desc",
  "fields": [],
  "full": false,
  "universe": null,
  "asset_class": null
 },
 "count": 2,
 "results": [
  {
   "ticker": "BURU",
   "name": "Nuburu, Inc.",
   "asset_class": "stocks",
   "asset_type": "CS",
   "price": 1.022,
   "change_1d_pct": 8.723404255319158,
   "gap_pct": null,
   "relative_volume": 0.2964,
   "market_cap": 9910709
  },
  {
   "ticker": "GPACW",
   "name": "General Purpose Acquisition Corp. Warrant",
   "asset_class": "stocks",
   "asset_type": "WARRANT",
   "price": 0.196,
   "change_1d_pct": 8.287292817679566,
   "gap_pct": 1.105,
   "relative_volume": 0.0144,
   "market_cap": null
  }
 ]
}
As-of — the same scan at a past date
curl -X POST "https://api.tickerbot.io/v2/scan" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{ "q": "at_bollinger_lower", "asof": "2026-07-04" }'
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-06-20",
 "query": {
  "q": "at_bollinger_lower",
  "asof": "2026-06-20",
  "interval": "auto",
  "limit": 2,
  "order": "change_1d_pct",
  "dir": "desc",
  "fields": [],
  "full": false,
  "universe": null,
  "asset_class": null
 },
 "count": 2,
 "results": [
  {
   "ticker": "SPRO",
   "name": "Spero Therapeutics, Inc. Common Stock",
   "asset_class": "stocks",
   "asset_type": "CS",
   "price": 2.28,
   "change_1d_pct": 8.056872037914689,
   "gap_pct": 18.957345971563978,
   "relative_volume": 5.167213526799019,
   "market_cap": 126294214
  },
  {
   "ticker": "SVCCW",
   "name": "Stellar V Capital Corp. Warrant",
   "asset_class": "stocks",
   "asset_type": "WARRANT",
   "price": 0.169,
   "change_1d_pct": 4.320987654320992,
   "gap_pct": 0,
   "relative_volume": null,
   "market_cap": null
  }
 ]
}
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": "at_bollinger_lower", "target_url": "https://example.com/hooks/tickerbot"}'

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

Its history /v2/series

History — the column on an aligned time grid
curl "https://api.tickerbot.io/v2/series?tickers=AAPL,MSFT&columns=close,at_bollinger_lower" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-09-18T14:37:37.007Z",
 "interval": "1d",
 "tickers": [
  "AAPL",
  "MSFT"
 ],
 "columns": [
  "close",
  "at_bollinger_lower"
 ],
 "count": 6,
 "series": {
  "AAPL": [
   {
    "t": "2026-09-15",
    "close": 331.34,
    "at_bollinger_lower": false
   },
   {
    "t": "2026-09-16",
    "close": 332.41,
    "at_bollinger_lower": false
   },
   {
    "t": "2026-09-17",
    "close": 337.002,
    "at_bollinger_lower": false
   }
  ],
  "MSFT": [
   {
    "t": "2026-09-15",
    "close": 497.12,
    "at_bollinger_lower": false
   },
   {
    "t": "2026-09-16",
    "close": 490.3,
    "at_bollinger_lower": false
   },
   {
    "t": "2026-09-17",
    "close": 497.75,
    "at_bollinger_lower": false
   }
  ]
 }
}

Its firings /v2/events

Firings — every enter edge as a point event
curl -G "https://api.tickerbot.io/v2/events" \
  -d "kind=signal" -d "signal=at_bollinger_lower" -d "transition=enter" -d "from=2026-02-24" \
  -H "Authorization: Bearer YOUR_KEY"
Response (sampled 2026-09-18, trimmed)
{
 "as_of": "2026-09-18T14:37:37.208Z",
 "query": {
  "kind": "signal",
  "tickers": null,
  "universe": null,
  "since": "2026-02-10T00:00:00.000Z",
  "until": null,
  "limit": 2,
  "signal": "at_bollinger_lower",
  "transition": "enter"
 },
 "count": 2,
 "results": [
  {
   "ticker": "WING",
   "ts": "2026-09-18T14:37:13.770Z",
   "kind": "signal",
   "payload": {
    "signal": "at_bollinger_lower",
    "transition": "enter",
    "price": 102.8,
    "definition_version": 6
   }
  },
  {
   "ticker": "VEEE",
   "ts": "2026-09-18T14:37:13.770Z",
   "kind": "signal",
   "payload": {
    "signal": "at_bollinger_lower",
    "transition": "enter",
    "price": 8.508,
    "definition_version": 6
   }
  }
 ]
}

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

Related signals — Volatility & bands