> AI agents: this is one page from PostHog's docs. Full index of Markdown docs for LLMs: https://posthog.com/llms.txt

# Linking Alpha Vantage as a source

Canonical URL: https://posthog.com/docs/data-pipelines/sources/alpha-vantage

> **Cloud region:** This page uses US Cloud hosts. For an EU Cloud project, use `https://eu.posthog.com` instead of `https://us.posthog.com` or `https://app.posthog.com` (app host for links).

## On this page

- [Prerequisites](#prerequisites)
- [Adding a data source](#adding-a-data-source)
- [Sync modes](#sync-modes)
- [Configuration](#configuration)
- [Supported tables](#supported-tables)
- [Troubleshooting](#troubleshooting)

**Beta release**

This source is currently in **beta**. It works end to end, but you may still hit rough edges. [Let us know](https://us.posthog.com/#panel=support%3Asupport%3Adata_warehouse%3A%3Atrue) if you do.

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_9608fcca70)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_dark_a92b0e022d)

Let AI connect your sources for you

Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.

`npx @posthog/wizard warehouse`

![PostHog Wizard hedgehog](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)

![](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)Let AI connect your sources for you

The Alpha Vantage connector syncs time series daily, time series daily adjusted, time series weekly, and more into the PostHog data warehouse, so you can analyze them alongside your product data.

## Prerequisites

Credentials that can read the data you want to sync. PostHog only reads data, so read access is enough.

## Adding a data source

1.  In PostHog, go to the [Sources tab](https://app.posthog.com/data-management/sources) of the data pipeline section.
2.  Click **\+ New source** and click **Link** next to this source.
3.  Enter your credentials (see [Configuration](#configuration) below) and click **Next**.
4.  Select the tables you want to sync, choose a sync method and frequency, then click **Import**.

Once the syncs are complete, you can start querying this data in PostHog.

Enter your Alpha Vantage API key and the stock symbols you want to track to pull market data and company fundamentals.

You can claim a free API key on the [Alpha Vantage support page](https://www.alphavantage.co/support/#api-key).

Note: the free tier is limited to roughly 25 requests per day, and each selected table costs one request per symbol on every sync. Some datasets require a paid plan.

You'll be asked for:

-   **API key**
-   **Symbols (comma-separated)**: for example `IBM, AAPL, MSFT`.

## Sync modes

Each table can be synced in one of several modes, depending on what the source supports:

-   **Webhook** (when available) – the source pushes changes to PostHog in real time. Fastest freshness, lowest ongoing cost, and the only mode that reliably captures updates and deletes.
-   **Incremental** – only new or updated rows are synced on each run, using a cursor field (such as an `updated_at` timestamp). Cheaper than a full refresh, but deletes aren't captured.
-   **Append only** – new rows are appended using a cursor field; existing rows are never updated. Ideal for immutable, append-only tables like event logs.
-   **Full refresh** – the whole table is reloaded on every sync. Use it when a table has no reliable cursor or when you need deletions reflected.

See [sync methods](https://posthog.com/docs/data-pipelines/sources.md#sync-methods) for a full explanation of how each mode works and how to choose between them.

All Alpha Vantage tables are full refresh. Each sync replaces the contents of the table.

## Configuration

| Option | Type | Required |
| --- | --- | --- |
| `API key` | password | Yes |
| `Symbols (comma-separated)` | text | Yes |

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `time_series_daily` | Daily open/high/low/close/volume bars per symbol (20+ years of history). Full refresh. | Full refresh | — | symbol, date |
| `time_series_daily_adjusted` | Daily bars per symbol with split/dividend-adjusted close, dividend amount, and split coefficient (25+ years of history). Requires a paid Alpha Vantage plan. Full refresh. | Full refresh | — | symbol, date |
| `time_series_weekly` | Weekly open/high/low/close/volume bars per symbol. Full refresh. | Full refresh | — | symbol, date |
| `time_series_monthly` | Monthly open/high/low/close/volume bars per symbol. Full refresh. | Full refresh | — | symbol, date |
| `global_quote` | Latest price and trading-day snapshot per symbol (one row per symbol). Full refresh. | Full refresh | — | symbol |
| `company_overview` | Company fundamentals, ratios, and descriptive fields per symbol (one row per symbol). Full refresh. | Full refresh | — | symbol |
| `income_statement` | Annual and quarterly income statements per symbol. One row per report. Full refresh. | Full refresh | — | symbol, fiscalDateEnding, report\_type |
| `balance_sheet` | Annual and quarterly balance sheets per symbol. One row per report. Full refresh. | Full refresh | — | symbol, fiscalDateEnding, report\_type |
| `cash_flow` | Annual and quarterly cash-flow statements per symbol. One row per report. Full refresh. | Full refresh | — | symbol, fiscalDateEnding, report\_type |
| `earnings` | Annual and quarterly reported EPS (with estimates and surprise) per symbol. One row per report. Full refresh. | Full refresh | — | symbol, fiscalDateEnding, report\_type |
| `dividends` | Historical and declared dividend distributions per symbol. One row per distribution. Full refresh. | Full refresh | — | symbol, ex\_dividend\_date |
| `splits` | Historical stock split events per symbol. One row per split. Full refresh. | Full refresh | — | symbol, effective\_date |
| `insider_transactions` | Insider buy and sell transactions by executives, directors and other key stakeholders per symbol. One row per filing. Supports incremental sync. | Incremental, Full refresh | transaction\_date | symbol, transaction\_date, executive, security\_type, acquisition\_or\_disposal, shares, share\_price |
| `institutional_holdings` | Institutional holder positions per symbol, each row carrying the symbol's overall institutional ownership totals. Roughly 4,000 holders per symbol. Full refresh. | Full refresh | — | symbol, holder\_name, last\_reported, shares\_held |
| `news_sentiment` | Market news articles mentioning each symbol, with article-level and per-ticker sentiment scores. One row per article per symbol. Supports incremental sync. | Incremental, Full refresh | time\_published | symbol, url |
| `listing_status` | Every active and delisted US stock and ETF with its exchange, asset type, and IPO/delisting dates. Covers the whole market rather than the configured symbols. Full refresh. | Full refresh | — | symbol, status, ipoDate |
| `earnings_calendar` | Company earnings scheduled over the next 12 months, with the consensus EPS estimate. Covers the whole market rather than the configured symbols. Full refresh. | Full refresh | — | symbol, reportDate, fiscalDateEnding |

## Troubleshooting

-   If the connection fails with an authorization error, the API key is wrong, expired, or has been revoked. Create a new one, then reconnect the source.
-   If a table syncs no rows, the credential may not have access to that data. Check its permissions, then reconnect the source.

If your sync is failing or data looks wrong, see the [Data warehouse troubleshooting guide](https://posthog.com/docs/data-warehouse/troubleshooting.md). If that doesn't help, [contact support](https://us.posthog.com/#panel=support%3Asupport%3Adata_warehouse%3A%3Atrue) – we're happy to help.