# What is K-line?

*Data & Infra · Last updated: November 3, 2026*

It is the candlestick chart data that shows price changes in financial markets within a specific time frame.

## Overview

It summarizes the opening, closing, highest, and lowest price levels of assets within a given time interval in a single visual column. It is used as a fundamental data structure in algorithmic trading and market analysis to read the direction of price movements and market psychology. It is commonly known by this name in financial terminology of Chinese origin.

***Analogy:** It is like looking at the scoreboard of a sports match to understand how the team performed throughout the game, when they fell behind, and when they took the lead.*

## How it works

The first price in the designated period is recorded as the open, the last price as the close, and the extremes in between are indicated by wicks and stored in the database.

## Where it is used

It is used in financial analysis software, algorithmic trading bots, cryptocurrency exchanges, and dashboards.

## Commonly confused with

It is confused with simple line charts, but while a line chart only shows the closing price, the K-line presents four different critical pieces of data simultaneously.

## Questions and answers

**Can artificial intelligence models read this directly?**

Yes, time series models can take this data as numerical input and predict future price trends.

**Which time frames is it used in?**

It can be generated in all kinds of time frames, from scalping intervals to monthly periods.

## Related terms

- [Algorithmic Trading](https://trescout.com/en/dictionary/algorithmic-trading/)
- [Time Series Foundation Model](https://trescout.com/en/dictionary/time-series-foundation-model/)
- [Dashboard](https://trescout.com/en/dictionary/dashboard/)

## Related tools

- [Kronos](https://trescout.com/en/discover/kronos/)

This explanation was written in plain language for TreScout with AI and **machine-translated** from the Turkish original · the Turkish version prevails. If something looks wrong or missing, write to [hello@trescout.com](mailto:hello@trescout.com). [Read in Turkish →](https://trescout.com/dictionary/k-line/)

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Source: TreScout Dictionary · https://trescout.com/en/dictionary/k-line/