<!--
doc:
  owner: direct-web-services
  docType: overview
  api: time-series-sync
  version: v1
  lastUpdated: 2026-04-20
-->
# Time Series

Flexible, high-performance access to historical and calculated time series data across multiple investments. {.sub-title___devsite}

<nav class="md-docs-tabs-action___devsite">

  - [Overview](#overview)
  - [Key Capabilities](#key-capabilities)
  - [How It Works](#how-it-works)
  - [Related Content](#related-content)

</nav>

## Overview

The **synchronous Time Series API** provides on-demand access to historical time series data for up to **25 investments in a single request**. 

The API delivers standard data points returned directly from stored data as well as computed data points where output values are calculated on-the-fly at runtime based on the input parameters.

The API is designed for integration with real-time web applications, dashboards, and analytical tools where responsiveness and flexibility are critical.

## Key Capabilities

* Request historical time series data for **up to 25 investments per synchronous request**.
* Access **performance metrics computed at runtime**, such as **Price**, **Growth**, **Return**, **Rolling Return** and **Cumulative Return**.
* Designed for **interactive web use cases**, including real-time visualization, charting, and data display.
* Optimized for low-latency, synchronous access in user-facing applications.

## How It Works

**1. Define Investments and Date Range**
Specify up to 25 investment identifiers along with the desired start and end dates for the time series.

**2. Select Data Point and Calculations**
Choose the data point you want to query and configure calculation settings where necessary.

**3. Submit the Time Series Request**
Send a synchronous request to retrieve time series data dynamically generated at request time.

**4. Consume and Visualize**
Use the returned time series data directly for charts, tables, and interactive analysis, or integrate it into downstream workflows.

## Related Content

* [Getting Started](/direct-web-services/documentation/direct-web-services/time-series---sync/getting-started)
* [Guides](/direct-web-services/documentation/direct-web-services/time-series---sync/guides)
* [API Requests](/direct-web-services/documentation/direct-web-services/time-series---sync/api-requests)
* [OpenAPI Specification](/direct-web-services/documentation/direct-web-services/time-series---sync/openapi-specification)