How to Find Historical Stock Data with Yahoo Finance

[Stock Analysis] How to Find Historical Stock Data with Yahoo Finance

Yahoo Finance (https://finance.yahoo.com/) is a powerful tool that provides financial data for various stocks, funds, and indices worldwide. It's especially useful for **backtesting** investment strategies, as you can easily download historical data. In this post, we'll take a detailed look at how to find historical data for a specific stock using Yahoo Finance, with Samsung Electronics (005930.KS) as an example.

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1. Accessing Yahoo Finance and Searching for a Stock

First, you need to access the Yahoo Finance website. You can find the stock you want by entering it in the search bar. The important thing here is that **the search must be done in English.** If you enter it in Korean, you may not get proper search results.

For example, to search for Samsung Electronics, you should type "samsung electronics." You can also search by the stock code (ticker), and for domestic Korean stocks, you must add **".KS"** after the stock code to get accurate results. Since the stock code for Samsung Electronics is "005930," searching for **"005930.KS"** will take you directly to the corresponding page.

           

▲ A view of the Yahoo Finance search bar with 'samsung electronics' entered

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2. Navigating the Stock Page

Selecting 'Samsung Electronics Co., Ltd. (005930.KS)' from the search results will take you to the stock's detail page. On this page, you can see various information at a glance, such as the current stock price, chart, and related news.

The historical data we are looking for is in the Historical Data tab on the left menu of the page. Clicking this tab allows you to check data for a specified period, including closing price, opening price, highest price, lowest price, and trading volume.

        

▲ Select the Historical Data tab from the left menu of the page

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3. Viewing Historical Data

When you go to the Historical Data tab, daily data for the past month is displayed by default. You can freely set the period through Time Period and the data frequency through Show. For example, it's possible to check 5 years of monthly data or 10 years of weekly data.

           

▲ Historical data output screen

After setting the desired period and frequency, you can view the historical data.

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4. Precautions and Tips for Searching

The two most important things to remember when searching for domestic Korean stocks on Yahoo Finance are **searching by English stock name** and **adding .KS after the ticker.** While well-known companies like Samsung Electronics can be easily found by their English name, for small and medium-sized companies, adding .KS to the ticker is the fastest and most accurate method.

Also, since Yahoo Finance is a free service, there may occasionally be data errors or omissions. Therefore, it is advisable to cross-verify with other data sources before making important investment decisions.

Yahoo Finance is a very useful data source for investors. Without using complex paid programs, you can easily obtain historical data to verify your own investment ideas and refine your strategies. We hope this guide helps you take your first step in investment analysis.

 

The content of this blog is for reference in making investment decisions only, and investment decisions should be made based on individual judgment and responsibility. Under no circumstances can the information on this blog be used as legal evidence for the outcome of an investment.