Guide to web scraping for financial data

Guide to web scraping for financial data

Guide to web scraping for financial data

The advancement of computers has resulted in a variety of effective approaches for creating large databases. Web scraping is one technique used by statisticians, data scientists, computer scientists, and web developers to collect large amounts of data processed using statistical methods and analyzed. As the title suggests, Web scraping is a method of extracting data from the Internet, such as specific figures, messages, and tables, utilizing software that can conveniently store and manage all of the data obtained.

Financial data is the most important thing to collect if you have a finance-related website. Trying to scroll through the website by hand might be laborious and time-consuming. Furthermore, you may become frustrated if you visit websites one by one and then scrape the data from those sites. So, what should be done? How can you scrape the data in the shortest amount of time and with the least amount of effort? A web scraping tool, on the other hand, is the answer to all of your questions.

Many businesses have realized the value of using web scraping technologies since the information gathered can be useful. The tools are simple to use in the subject of finance and offer you accurate data quickly. In today's article, we will give you a complete guide to web scraping for financial data. So, let's start.

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The Importance of Web Scraping

Web scraping, also known as web content extraction, can be used for a variety of reasons. Web scraping may help you 10x your business growth with web data, whether you're a new or growing company. You can understand the importance of web scraping from the following points.

Technology makes it easy to extract data

The most important factor is access to technology because it allows almost anyone to execute web scraping at scale relatively easily. There's a lot of information on the Internet to help you master web scraping. As websites become more difficult to scrape (such as a one-page application), new tools like Puppeteer make scraping nearly anything possible. Furthermore, deploying bots on a large scale is becoming more practical, and it allows businesses to extract data on a large scale.


Scraping and crawling help businesses generate new goods and innovate faster, which is something we value. Consider a pricing comparison site such as Kayak, a technical SEO tool such as Botify, or even a job board built from several sources. These businesses would not be able to exist without the ability to extract web data. The possibilities are endless. And it raises the bar in terms of creativity; by allowing everyone to have simple access to web data, web scraping encourages you to improve your value proposition.

It allows you to innovate more quickly since you can test and implement new ideas more quickly. 

Limitless marketing automation

This subject is truly a lot of fun! Isn't it often said that marketers are (or should be) creative? You have carte blanche with web scraping because you can do pretty much whatever you want. Assume you've discovered one of your competitors on Instagram. They also have a sizable following of 15K+ people. However, you are confident that your product is superior and that customers would switch to you. So, what exactly do you do? You loot! Locate their Instagram page and begin removing all of their followers. You'll be able to follow and DM them using that list. Because you know the profiles you collect are interested in what you do, it's usually highly qualified. You could do the same thing on Twitter or any other social media platform.

Keep an Eye on your Brand

The market for brand monitoring is rapidly expanding. And, for the first time, I believe we can all agree that reading other people's reviews before making a purchase online has become a standard procedure. Consumers are becoming increasingly knowledgeable, and they want to be reassured that they're making the "correct choice." Surprisingly, businesses do not usually review and rate their customers.

Why? It's not that simple, though. You must extract reviews from each website and then aggregate them because so many platforms collect reviews and ratings. You might also use social network monitoring in combination with sentiment analysis to immediately reply to haters or reward fans.

Market research on a large scale

Big Data and Business Intelligence are words these days. In the end, though, quality takes precedence over quantity. Big data isn't required; instead, smart data is required. Assume you're in the business of selling machines and parts. There is a "used" market. But how can you know how much a specific spare part costs? Imagine the increased revenues at scale if you could merely improve the price by 10%! Web scraping comes to the rescue: all you have to do is grab data from selected distributor websites. And there you have it: you can create a garrosh fed by the data you extracted. Although product references aren't always the same, data processing might be a little problematic in this situation!

Data extraction is something that SEOs love.

You're using SEMrush or a keyword finder like Ubersuggest if you're serious about SEO. It's simple: without data extraction, these won't exist. You may rapidly identify your SEO competition for a specific search keyword using such tools. To indicate what is generating traffic to their website, look at the title tags and keywords they are targeting. If your website has a lot of content (1K+ URLs), you may run a technical SEO study to look for broken links and see how well your content is performing across the board.

Machine learning and large datasets

You've been tasked with building a model that will classify houses. Your product owner wants you to use deep learning because they think it's a great option for such a use case. You need a large volume to build your training set. And you're not going to do this by hand. Want to predict the stock market? Web. Scraping. Do you need to predict your competitor's pricing? Scrape that data!

Web scraping is the data scientist's best friend. But you're a data scientist, not a freaking bot! You want to analyze and build predictive models, not clean and extract web data. So don't reinvent the wheel; use a platform or ask us to do it for you.

Testing from beginning to end

Finally, you should be aware that testing is one of the most effective uses of web scraping. A bot is required if you wish to create user testing scenarios or monitor a website's performance.

Web scraping has become a hot topic among people with the rising demand for big data. More and more people hunger to extract data from multiple websites to help with their business development. However, many challenges, such as blocking mechanisms, will arise when scaling up the web scraping processes, preventing people from getting data. Let's look at the challenges in detail.

Common Problems When Using Web Scraping

Web scraping is a great technique to extract data; there are many common problems that almost everyone faces while doing this. These problems can be solved by avoiding a few things and trying a few techniques. The common problems when using web scraping are discussed below:

1. Bot accessibility

Before you start scraping, be sure that your target website enables it. If it prohibits scraping via its robots.txt, you can request scraping authorization from the website's owner by stating your scraping needs and goals. If the owner still doesn't agree, it's best to look for another site with similar content.

2. Web page structures complex and variable

HTML is used to create the majority of web pages (Hypertext Markup Language). Web page designers might have their design guidelines, resulting in a wide range of web page architectures. When scraping numerous websites, you must create a separate scraper for each one. Furthermore, websites update their content regularly to improve the user experience or add new features, frequently resulting in structural changes to the web page. Because web scrapers are configured to function with a specific page design, they will not work with the new page. Even slight changes to the target webpage may need adjusting the scraper.  

3. IP blocking

IP blocking is a typical technique for preventing web scrapers from accessing a website's data. When a website detects many requests from the same IP address, this is what happens. To stop the scraping operation, the website would either prohibit the IP or restrict its access. Many IP proxy services, such as Luminati, can be connected with automated scrapers to prevent users from getting blocked.  


CAPTCHA (Completely Automated Public Turing Test to Tell Computers and Humans Apart) is a popular method of distinguishing humans from scraping software by displaying images or logical questions that humans find simple to solve, but scrapers don't. Many CAPTCHA solvers may be integrated into bots to guarantee that scrapes do not come to a halt. Although CAPTCHA-defeating technology can aid in acquiring continuous data feeds, it may slow down the scraping process.

5. Honeypot traps

The website owner places a honeypot on the page to catch scrapers. The traps could be undetectable to humans but visible to scraper connections. When a scraper falls into the trap, the website can utilize the data it receives (such as the scraper's IP address) to stop it. 

6. Unstable/slow load speed

When a website receives too many access requests, it may react slowly or even fail to load. This is not a problem when humans surf the site because they simply need to reload the page and wait for it to recover. Scraping, on the other hand, maybe disrupted because the scraper is unprepared to deal with such a situation. 

7. Content that changes over time

Many websites use AJAX to refresh dynamic web content. Examples are lazy loading graphics, limitless scrolling, and displaying more information by hitting a button via AJAX calls. Users will find it convenient to view more data on such websites, while scrapers will not.

8. The necessity of logging in

You may be required to log in before accessing some protected information. Your browser automatically appends the cookie value to multiple requests you make after you provide your login credentials. Hence, the website knows you're the same person who just checked in earlier. So, if you're scraping a website that requires a login, make sure cookies are being sent along with the requests.

9. Data scraping in real-time

Real-time data scraping is critical when it comes to price comparison, inventory tracking, and other tasks. The data can alter in the blink of an eye, resulting in massive monetary gains for a company. The scraper must constantly watch the websites and scrape data. Even so, there is considerable lag due to the time it takes to request and receive data. Obtaining a vast volume of data in real-time is also a significant challenge.

There will undoubtedly be additional obstacles in web scraping in the future, but the universal scraping concept remains the same: treat websites with respect. Don't attempt to cram too much into it.

What Is the Importance of Web Scraping in Finance?

Web scraping for finance is a technique for quickly evaluating and extracting data from the Internet. Data scraping has the potential to be immensely beneficial since it allows people to study and access data that would otherwise be unavailable. The main advantage of web scraping is that the data is simple to use. In essence, data that provides insights into business details, marketing strategies, and business statistics is a fantastic experience. Web scraping economic data is a technique for gathering all relevant information for business development. This article will look at how the web data scraping approach can be used in the finance industry.

Equity Research

Web scraping financial data Python could be used by many businesses that deal with investing and asset management to obtain useful data for analyzing crucial industry trends. Continuous data monitoring from specific marketplaces, for example, could identify market patterns, and price and inventory monitoring are two of the most common scenarios. The scraped data can then be used for analysis, which can result in significant investments.

Financial Ratings

Web scraping for finance is a valuable resource for any company. You'd obtain real-time data and be able to use it to your advantage. This information could be used by rating agents to scrape information from a variety of corporate websites. This information could be extremely useful to customers in banking, investment, and other sectors. They can also make informed decisions based on their findings.

Risk Management and Mitigation

Compliance with rules is critical for all businesses, including those in the financial sector. As a result, online scraping services assist individuals in the criminal sector in scraping in the government's sights to test any policy changes related to various regulatory standards imposed by the government. The financial industry would monitor various government-run news outlets to receive real-time notifications that directly influence their industries.

Market Sentiment Predictions

The Internet is ruled by news about the financial sector. This type of information can be found on message boards and social media platforms. You may use web scraping for finance to get all of the financial data you need to stay ahead of the game. You must first deal with the plan before beginning web scraping from financial websites. After that, you'll need to figure out what kind of data you'll need and how to use it. Simply examine the information you obtain fast. You don't want to be stuck with a data set that isn't going to benefit you. It would be a waste of resources and time. Financial websites are extremely sensitive, and crawling them requires extreme caution. The website owners are exceedingly concerned about being hacked and have taken numerous precautions to avert intrusions. You must add time to your requests to avoid them being blocked.

Scraping the Right Way

Make sure you use a limited number of simultaneous requests and include pauses between the pages you crawl. For example, if you're scraping ten pages, take a break before continuing. It's possible that doing so will make it difficult for websites to find you, and it turns into a win-win situation. When you have the necessary information, you should make the best use of it. Avoid collecting data to negotiate with the website's original owners. For example, you should not use Yahoo's stock websites data to compete with Yahoo because it is unethical. It is simple to obtain quick, precise, and reliable financial data via online scraping economic data. On a network, there are no restrictions to any type of data. All you need is the correct tool for the job.

Because the bank protects your financial records, they cannot be made public. It's fine because you might need to share financial information with the public on occasion. However, in most cases, you may be more comfortable exchanging your financial data with other secure things than keeping it fully under lock and key.

Many additional financial services are constantly introduced, and we do not use a single bank account to manage all of our financial goods. As a result, it's easy to see people checking multiple bank accounts, deposits, and bank loans simultaneously.

Applying for modern financing services is time-consuming and usually requires personal visits. It is possible to sign in with the bank account alternatives, which are nothing more than signing in to Facebook in financial services and using Python web scraping for financial data.

You do not need to fill out lengthy application forms, upload papers, or go to a bank to verify your information. Only a bank you have enrolled may supply you with all of these facts about your classification and registration.

What Kind of Web Data can be collected via web scrapers?

You can probably think of a few different applications for web scrapers at this time. Some of the most prevalent ones are listed below.

Scraping of real estate listings

Many real estate agencies use web scraping to populate their database of available properties for sale or rent. A real estate agency, for example, will scrape MLS listings to create an API that will automatically populate this information on their website. When someone finds this listing on their site, they can function as the agent for the property. The majority of listings on a Real Estate website are created automatically using an API.

Insights and Statistics about the Industry

Many businesses utilize web scraping to create large databases from which they can extract industry-specific information. These businesses can then sell access to these insights to other businesses in the same industry. For instance, a company might scrape and analyze massive amounts of data on oil prices, exports, and imports to market its findings to oil companies all over the world.

Sites that Compare Prices

Several websites and programs can assist you in comparing prices across multiple merchants for the same product. These websites work in part by scraping product data and pricing from each merchant daily utilizing web scrapers. They will be able to give their users the necessary comparison data in this manner.

Creating Leads

Lead generation is a very prevalent application of web scraping. We've prepared a full tutorial on using web scraping for lead creation because it's so popular.

In a nutshell, web scraping is a technique many businesses use to get contact information from potential consumers or clients. This is extremely common in the business-to-business sector, as potential clients would publicly disclose their company details online.

What are the use cases of web scraping in finance?

Regardless of industry, every company globally recognizes that the Internet provides useful knowledge that may be utilized in their organization. However, due to its unstructured nature, online data's latent potential is mainly hindered, but if it can be extracted and handled effectively, the benefits can be enormous. This is especially true in the banking industry, where value realization can be much faster than other sectors. 

Research on the stock market

Web crawling can be used by asset management and investing organizations to gather data and assess basic patterns. Continuous aggregation of performance data from websites serving certain markets, for example, can indicate trends. The price and inventory data monitoring of clients' and other portfolio sites is one of the most prevalent use cases. Because the online data retrieved is simple to ingest, it can be quickly put into the analytics system, resulting in a more effective investment strategy. The same method can be used for numerous ratio analysis forms, such as solvency and profitability ratios, which consider a company's financial performance. These analyses necessitate integrating data from income statements, balance sheets from many years, and the industry average. This information may be pulled from the web in a clean format, saving time and effort.

Venture capital 

Apart from prospective startups, VC firms must keep up with the newest technology trends and portfolio companies' news. Before investing in a startup, acquire funding statistics from various sources such as AngelList, VentureBeat, and TechCrunch. This is akin to collecting important business information, such as publicly available financial accounts, which can help startups make funding decisions.

In addition, analysts must search many websites for trends and accumulate buzzwords to determine the most important ones. This is both time-intensive and inaccurate. On the other hand, data extraction services may quickly obtain clean data from preferred sources, allowing time to be spent solely on data analysis.

Financial information and evaluations

Web scraping allows rating agencies to monitor and gather data from thousands of company websites. They can acquire near-real-time and live information to support high-speed research and analytics. Finally, this can bring significant value to their clients (institutional investors, banks, wealth managers, and so on), who will be able to make better decisions due to the insights.

Compliance and risk mitigation

Regulatory compliance is critical for any business, but companies in the financial and insurance industries are subjected to even more scrutiny due to the nature of their operations. As a result, it's a good idea to keep an eye on government websites for any policy changes relating to regulatory requirements.

Insurers, in particular, should keep an eye on news outlets and government websites for real-time updates on key events that could have a direct influence on their business. The same can be said for mortgage financing companies (examples can be the impact of flood or earthquake on the asset).

Prediction of market sentiment

Sentiment analysis can be used to analyze data from various forums, blogs, and social media sites. In this situation, Twitter data offers a great deal of value. For example, dialogue (hashtagged tweets) on Twitter or any brand-specific tweets may be gathered, and sentiment analytics can be used to score the bull and bear characteristics of the market on a scale.

Investing in stocks

Trending themes can be linked to firms in which investment can be made using a crowd-sourced taxonomy of tags that parses the world's interactions on multiple public sites. Brands, celebrity endorsers, subjects, cultural movements, and more can all be used as tags – anything that can influence the business. This might reveal stock and ETF buy and sell indicators. Influencers and professional investors can also be followed so that their online remarks and debates might provide insight into the market's future direction. Equities, ETFs, FX pairings, and commodities can all be used in this way.

Expert Networks in the Digital Age

According to Investopedia, an 'Expert Network' is a collection of professionals who provide specialized knowledge and research services to outsiders for a fee. Expert networks can be extremely vast, containing tens of thousands of people with advanced knowledge of a wide range of topics. Because the Internet is the world's largest knowledge reservoir, a digital version of the 'Expert Network' can be created by extracting data from thousands of websites. These can range from Indian economics to QSRs in the United States to cryptocurrency in Zimbabwe and the Syrian refugee crisis.

What are the best web sources for financial data?

  1. Forbes is the global business leaders' home website, with original content on money, personal finance, investment, the stock market, leadership, and marketing. Technology, communications, science, and law are among the topics covered by Forbes.
  2. Thomson Reuters - Thomson Reuters' media division Reuters is the world's leading international multimedia news organization, providing its audience with the most up-to-date news on investment, business, the stock market, technology, small company, and personal finance from around the world.
  3. Bloomberg Businessweek, formerly known as Businessweek, is a worldwide famous publication that provides information and analysis on current events in the business world.
  4. The Wall Street Journal is one of the most well-known magazines globally, supplying its large audience with the most up-to-date business, financial, and stock market information.
  5. The Economist provides authoritative analysis on a wide range of world topics, including politics, business, economics, science, and technology.
  6. MarketWatch is a leader in business news, personal finance information, real-time commentary, and investment tools and data, with committed journalists producing hundreds of headlines, stories, videos, and market briefings every day from ten bureaus around the United States, Europe, and Asia.
  7. The Financial Times is one of the most well-known financial news websites globally, with a reputation for accuracy. The Financial Times publishes a wide range of information, including financial news, data, and commentary, among other things.
  8. CNNMoney is a fantastic finance website that can teach you how the news affects your finances.

Data Extraction Advantages in the Financial Industry

Following are the data extraction in the financial industry:

  • Decisions are made faster. Auto-data extraction enables businesses to extract useful information from unstructured data sources without the need for manual intervention.
  • Cost savings: Automatic data extraction not only helps you make money but also helps you save money. Manual processes are not only costly but also time-consuming. Take, for example, invoices: Every year, any reasonable-sized business handles hundreds, if not millions, of bills. Currently, many businesses process these by hand. Consider how much money and time you could save if it were automated.
  • Manual error reduction: There's an old saying that there will be mistakes where there are humans. Manual errors, such as any type of physical entry, might increase your costs. Entries can be missing, partial, or even duplicated. Such inaccuracies are significantly reduced when data is extracted automatically.
  • Reduces time-to-market: According to surveys, many organizations attribute their failure to meet their business objectives to their inability to combine data on time. It so happens that FIIs discover mistakes in the data import process while preparing for data analytics. All of this translates to missed time, which can amount to millions of dollars.
  • Increases scalability: With automatic data ingestion, you may begin by ingesting data from ten or fewer sources, then expand to many more in a matter of hours. There's no need to continue going to your IT department to add additional data sources. As a result, operations will run smoothly and without interruption.

As previously stated, data intake is the process of acquiring and then importing data. The latter is required for data preparation before analysis. Ingestion might take place in real-time or in batches at predetermined intervals. The extraction, transformation, and loading of data are all part of data ingestion. The first step entails getting data from your sources, validating and cleaning it, and then loading it into the appropriate database.

Manual data ingestion is no longer practicable when your data volume expands, and this is especially true in financial institutions. A finance company can easily have over 300, if not more, data sources, with the majority of them pouring in data 24 hours a day, seven days a week. Furthermore, data enters the organization in various formats, which must be transformed into more familiar formats.

What is Yahoo Finance?

Yahoo Finance is a business media platform from Yahoo that offers a wide range of business and investment-related content. It has a wealth of company data, including financial news, stock quote data, press announcements, and financial reports. Yahoo Finance is the place to go if you're an investor or just want to keep up with the latest financial news.

The best part about Yahoo Finance is that all of this information is available for free. As a result, by scraping Yahoo finance data, you can acquire useful information at your fingertips and do stock and currency trend research. You also get real-time stock price information as well as access to other financial investment/management tools.

Why is it necessary to scrape financial websites?

The benefits of data extraction in the financial industry begin with reducing the time it takes financial organizations to conduct a market study and a considerable increase in the reporting size. It automates a critical aspect of a company's day-to-day operations and ensures that high-quality data is delivered considerably more swiftly.

  • Observance of local rules: Each business is housed in its site. When it comes to investing, each place may have its own set of rules that you must follow. A web scraping service can provide adequate information about local guidelines to guarantee you have checked all the legal boxes before spending.
  • Staying ahead of the curve: A web scraping service's main objective is to collect market data to forecast the market's future direction. Relevant market data assists you in making decisions that keep you ahead of the competition. Staying ahead of the competition in a highly competitive field like finance is a huge benefit for any financial organization.
  • Equity markets: When deciding whether to buy or sell a property, equity markets necessitate constant monitoring of market developments. You can accurately predict changing market trends if you have access to essential financial data from several marketplaces.



In summary, we have discussed the importance of web scraping for financial data, common problems people face while doing web scraping, the best sources to extract financial data, and many more. So, rather than wasting more of your valuable time, get a web scraping tool to collect data and make the most of it to reach your business objectives.

  • If you like the content and the information written in it, share it with your friends, marketers, colleagues, and business partners so that they can also learn about this.
  • Web scraping is becoming more common as well as important day by day in the financial sector. Soon, every business website will rely on web scraping to extract valuable content.
  • It's important to choose the right web scraping tool for your business because every tool is different.

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