Consolidated 1-minute OHLCV bars and official end-of-day prices for every US-listed stock, ETF and ADR, including delisted names, with splits, dividends and symbol changes.
Data product · Listing updated 11 Nov 2026
United States
Prior-session files by 06:00 ET; delayed API lags 15 minutes
About 9,800 active and 14,000 delisted securities; 2.5 billion 1-minute bars
Startups, Small and medium businesses, Mid-market, Enterprises, Academia and research
Consolidated US equity tape and primary-exchange official closing prices
Direct SIP and exchange feed ingestion with trade-condition filtering
Survivorship-bias-free US equity prices on a permanent security ID, built for backtesting and production analytics.
Intraday 1-minute bars (open, high, low, close, volume, VWAP and trade count) and official end-of-day prices for all US-listed common stocks, ETFs and ADRs, including roughly 14,000 delisted securities. A corporate actions file covers splits, cash and stock dividends, spin-offs, mergers, symbol changes and delistings, with ex-dates and cumulative adjustment factors so you can build adjusted or unadjusted series yourself.
Bars are built from the consolidated tape, which includes all US exchanges and reported off-exchange trades, and are filtered for out-of-sequence and erroneous prints using trade condition codes. End-of-day prices use the primary listing exchange's official close. Every security keeps one Ledgerwell ID through ticker and CUSIP changes. Intraday history starts in 2004 and daily history in 1998. Files for the previous session land by 06:00 US Eastern, and a 15-minute delayed REST endpoint covers the current session. Real-time display to retail users needs separate exchange licences, which we can help you arrange.
13 fields as documented by Ledgerwell Markets.
| Field | Type | Description | Example |
|---|---|---|---|
| ledgerwell_id | string | Permanent security ID that survives ticker and CUSIP changes | — |
| ticker | string | Ticker symbol valid on the bar date | — |
| bar_start | datetime | UTC timestamp of the first second in the bar | — |
| open | number | First eligible trade price in the bar | — |
| high | number | Highest eligible trade price in the bar | — |
| low | number | Lowest eligible trade price in the bar | — |
| close | number | Last eligible trade price, or official close for daily rows | — |
| volume | integer | Shares traded across all venues | — |
| vwap | number | Volume-weighted average price for the bar | — |
| trade_count | integer | Number of eligible trades | — |
| adj_factor | number | Cumulative split and dividend adjustment factor | — |
| action_type | string | Corporate action type (split, dividend, spin_off, merger, symbol_change, delisting) | — |
| ex_date | date | Ex-date of the corporate action | — |
Real rows from the provider's sample file. Personal data is masked before anything is shown.
| ledgerwell_idstring | tickerstring | bar_startstring | openstring | highstring | lowstring | closestring | volumestring |
|---|---|---|---|---|---|---|---|
| LW000184 | DEMO | 2026-10-30T13:30:00Z | 42.10 | 42.25 | 42.05 | 42.18 | 18400 |
| LW000184 | DEMO | 2026-10-30T13:31:00Z | 42.18 | 42.31 | 42.16 | 42.29 | 12950 |
| LW002711 | EXMPL | 2026-10-30T13:30:00Z | 118.40 | 118.62 | 118.11 | 118.57 | 6420 |
| LW009310 | SMPL | 2026-10-30T13:30:00Z | 7.82 | 7.85 | 7.79 | 7.80 | 51200 |
Prices in USD, as published by Ledgerwell Markets
end-of-day prices and corporate actions
1-minute bars plus end-of-day prices
full history and daily updates for one legal entity
Converted amounts use DataStoa display rates and are approximate. Ledgerwell Markets quotes the final price, taxes and terms.
Request detailed pricing1 country.
Time coverage: 1998 to present.
Provider-reported
Latency: Prior-session files by 06:00 ET; delayed API lags 15 minutes
DataStoa has not audited these figures. Ask the provider how they are measured, or test them on a sample.
The licence is agreed directly between you and Ledgerwell Markets. This summary is provider-reported; the linked terms prevail.
Not listed: AI / ML model training, AI retrieval and grounding, redistribution allowed, marketing and outreach. Ask Ledgerwell Markets if you need any of these.
Point-in-time US equities, fundamentals and estimates for quants
Ledgerwell Markets delivers clean, point-in-time market data for systematic investors: consolidated US equity prices, standardized fundamentals and consensus estimates on one security master. Every dataset keeps as-first-published history, so backtests only see what was known at the time.
Also available on: Snowflake Marketplace, AWS Data Exchange, Databricks Marketplace
What buyers say about Ledgerwell Markets. Reviews cover the provider, not only this listing.
from 3 reviews
Consensus and revision history are clean and the surprise calculations match our own. For a team of three the price of the individual-estimates tier is hard to justify, so we stayed on consensus only. They did offer a shorter first term.
Martin H., Portfolio manager, Boutique asset manager
Splits and dividends arrive with ex-dates a day ahead, so our adjusted prices no longer break on Monday mornings. One-minute bars have occasional gaps on very illiquid names, which is expected but worth knowing.
Grace O., Data engineer, Retail brokerage app
Restatements are kept as separate vintages with the original filing timestamp, so our backtests finally stopped leaking future information. Delisted companies are in the history, which matters for survivorship. Onboarding took two calls and a well-documented schema file.
Daniel K., Quant researcher, Systematic hedge fund