Best Stock Screener: The 5 Best Scanners for 2021

Chris Dios - May 26, 2021

The Stock Dork is reader supported. We may earn a commission, at no additional cost to you if you buy products or signup for services through links on our site.

The best stock screener saves your time and provides you with the market intel you need to trade effectively. Even beginners can benefit from these powerful trading tools. However, there are a ton of stock screeners online, and choosing the best one for your trading style can be a difficult task.

Fortunately, your friends at Dork are breaking down the top options in the sector in our best stock scanner review. Stay tuned to find out which is the best stock scanner for you.

finviz example screen

What is a Stock Screener?

A stock screener is a powerful trading tool that allows you to search through market data using customizable filters for fundamental metrics and technical criteria.

Traders use screening tools for various purposes, but they’re most commonly used to scan the market for new trade opportunities. You can program stock screeners according to your personal trading strategy, and it will automatically scan the market for stocks that fit your criteria.

For example, you can set the screener to look for large-cap stocks with a positive PE ratio and YoY revenue growth of 20%. That’s just one scenario, but the possibilities are endless.

Stock scanners are like a sophisticated stock market search engine. There are thousands of publically traded stocks on the market, so it’s impossible to search through them all manually.

Fortunately, stock screeners make it easy to find high-potential stocks to trade. Traders of all types and experience levels can greatly improve their trade results with an effective screening tool.

What to Look for in the Best Stock Screener

If scanners are a new concept for you, you might not know what to look for when you’re shopping around. Here are some of the top attributes to consider when you’re shopping for a stock screener.


Stock screeners come in all shapes, sizes, and levels of sophistication. The most sophisticated screeners can cost thousands of dollars, but basic free stock screeners are also available.

You shouldn’t necessarily run out and buy the most expensive stock screener you can find. Just because it has the most capabilities doesn’t mean it’s the best choice for your needs.

It’s also worth shopping around when you’re in the market for a screener. Pricing practices vary greatly in this industry, so the highest-priced screener might not be the best.

Generally, you want to look for screeners that fit your needs. Then, take the prices into consideration, and make a choice from there.


Customizability is a big deal for serious traders. If you’re a highly focused technical analysis trader, then you need a fully adjustable screener that allows you to input your own filters.

Some stock screeners only accept preset screens. For example, if you’re screening by PE ratio, some screeners will only allow you to choose from a set of numbers, so you can’t input “PE greater than 2.4” or other custom screens.

This isn’t a major problem for some traders, but it could be a dealbreaker for data-focused fundamental and technical traders.

Make sure the stock screener you choose has capabilities that match your trading style. Customization is an important area to pay attention to when your shopping for stock screeners.

trade ideas reviews

Data Feeds

Every stock screener doesn’t use live, real-time data. Typically, live-data screening tools cost more than delayed data options.

The screener companies have to pay to access real-time quotes, and the added cost gets passed along to the customer in most cases.

Long-term investors and swing traders might be okay with delayed data in return for the savings, but most day traders and other fast-paced investors will want stock screeners with live data.

If you have a fast-paced investing style, you will probably want to choose a screener with real-time data feeds. Having access to live market data can drastically improve your trading results.

For more casual, slower-paced traders, delayed data could be acceptable in return for the savings.

It really comes down to your personal needs and preferences, but it’s something you should take into consideration while you’re shopping around.

The 5 Best Stock Screeners for 2021

We reviewed the best stock screeners to help you narrow your search. These are all excellent stock screening tools, but they all offer different benefits and drawbacks.

Without further ado, here are our top picks for the best stock screeners.

trade ideas review holly ai

Trade Ideas 

Trade Ideas is probably the most sophisticated, powerhouse stock screening tool on our list. It boasts an impressive array of premium features including AI-powered stock screens, pre-market scanning capabilities, brokerage account integrations, real-time data, and more.

This stock screener is built for serious traders, and it has a price to match. It’s the priciest option on our list, but its capabilities more than justify the costs.

You can use Trade Ideas to set custom screens using a wide array of fundamental and technical criteria. Trade Ideas also boasts a number of impressive, AI-powered preset screens that can help you quickly find new stock picks to trade.

Trade Ideas’ built-in stock charts also make it easy to conduct detailed technical analysis through the platform, so there’s no need to switch through multiple apps.

This is undoubtedly the most sophisticated stock scanner on our list, but it might be overkill for some traders. It’s also fairly complex, so there could be a learning curve for new traders.

However, Trade Ideas is an excellent option for serious self-directed investors, day traders, and other stock-picking professionals. It’s a powerful trading tool that can handle even the most sophisticated investment analysis.

>> Get Started with Trade Ideas Now <<

Best Features

Here are some of the top reasons to sign up for Trade Ideas:

AI Holly with IBKR Integration

Trade Ideas’ AI trading capabilities put this stock screener in a category all its own. This powerful system can automatically spot trade opportunities and execute on them automatically.

Unfortunately, fully automatic AI Holly trading only integrates with Interactive Brokers at the moment. You’ll also need an IBKR brokerage plus account to set it up.

Automatic trading is only available with Trade Ideas premium so you can’t use it with a basic account either.

However, automatic trading can be a gamechanger if you’re willing to set it up.  The big drawback is that it only works with Interactive Brokers Brokerage Plus, but it’s a game-changer for busy investors.

OddsMaker Backtesting and Simulated Trading

Serious fundamental and technical traders put a lot of work into finding the perfect trading formula.

Scanners make it easy to find stocks that match your criteria, but how can you be sure your strategy is really effective without a potentially costly trial-and-error approach?

Backtesting is the answer. You can vet your trading strategies through  Trade Ideas OddsMaker tool to see how they performed in the past.

OddsMaker uses a vast cache of historical market data and shows you what kind of results your chosen strategy produced in the past.

There’s no guarantee that history will repeat itself, and what worked in the past might not work in today’s market.

However, backtesting can give you a better idea of how your strategy could perform in the real world.

Between backtesting and a built-in trade simulator, you can test out even the riskiest trade strategies without risking a cent of your hard-earned cash.

If your backtested strategies are effective, you can incorporate them into your trading regimen. If not, you can go back to the drawing board with minimal financial consequence.

>> Join Trade Ideas to Take Advantage of These Powerful Trading Tools Now <<

trade ideas chat
A screenshot of the Trade Ideas homepage. The layout is totally customizable, so you can change it to suit your preference.


  • AI-powered automatic stock picking with interactive Brokers
  • Brokerage account integration with several popular brokers
  • Make trades directly through the platform with one click
  • Backtest your trading strategies with OddsMaker
  • Buil-in chat feature
  • Fast and accurate integrated newsfeed
  • Multi-variant, color-assisted sorting (patent pending)
  • Integrated paper trading
  • Feature-rich chart windows
  • Dozens of pre-set “Channel Bar” screens
  • Sophisticated fundamental and technical analysis tools
  • Alerts and notifications
  • Rich selection of educational resources and classes


  • Could be cost-prohibitive for smaller budgets
  • Steeper learning curve

Best For

We think Trade Ideas is a great fit for these applications:

trade ideas pro

Active swing and Day Trading

Trade Ideas AI-powered scans and trade suggestions make it easy to identify fast-moving opportunities in real-time. It automatically scans trading volume, technical indicators, and more to find the best momentum plays quickly and efficiently; perfect for fast-paced day trading.

AI-powered automatic trading

If you want to put your portfolio on autopilot, Trade Ideas is one of the only truly autonomous tools on the market. Trade Ideas’ sophisticated AI will buy and sell stocks using the latest technical data to identify opportunities with a high probability of success.

So far, “AI Holly” has racked up an impressive track record of winning trades. Traders who are interested in AI-powered trading should definitely give this platform a look.

Read our full Trade Ideas review to see if it’s the best stock screener for you.

>> Sign up for Trade Ideas now and start trading with Holly AI <<


blackbox stocks review

Blackbox Stocks

Blackbox Stocks is a sophisticated stock screener and trading platform with a rich selection of features. It’s suitable for advanced users, but beginners also report success with the platform.

I was very new to trading when I joined BlackBoxStocks. I watched the top traders live channel broadcasts and learned to trade using the trading system. After several green trades, I absolutely love watching these live channels to see what I should trade everyday!” – Kyla Watts / Facebook

This stock screener has all the features you would expect from a top-tier scanner, including automatic market movers, real-time price quotes, volume ratio scanners, and much more.

Plus, Blackbox Stocks has a lot of extras you won’t typically find with other products. It has a robust educational program for new traders and community features including a members chat room.

The platform also has a sophisticated options screener built-in so it’s a great choice for options traders. It also has a pre-market screener so you can find opportunities well ahead of the opening bell.

BlackBox Bootcamp review
Blackbox Stocks has a robust trader education course that helps beginners acclimate to the program.

Best Features

Blackbox Stocks has a few notable features worth mentioning:

Specialized Options Software

Blackbox Stocks’ options screener adds a valuable element to the usual stock screener functions. This unique tool makes it easy to find suitable options trades just as easily as regular stocks. It’s a no-brainer for options traders, and it has the potential to make your trading routine much more efficient.

Community Features

As is the case with many things in life, trading is a lot easier with a little help from a few friends. Blackbox Stocks community features make it easy to network and share insights with other traders. The platform has an integrated social media component that allows you to follow trending stocks and members of the Blackbox Stocks community. Plus, there’s a chatroom to discuss trades in real-time.

“Finally a great real trading group! Fun and a real money maker! Excellent personalities and real people who trade and will help in any way they can…these are great people!” – Dan Druckenmiller / Facebook

>> Build Your All-Star Trading Team with Blackbox Stocks <<

blackbox stocks review dashboard


  • Powerful, built-in options screener
  • Excellent stock screener with advanced functionality
  • Automatically tracks and alerts you to developing trade opportunities
  • Pre-market scanner finds trade opportunities hours before the opening bell
  • Integrated social media and community functions
  • Includes Blackbox Boot Camp trader education course
  • Real-time quotes and price action
  • Proprietary volatility indicator
  • Real-time explosive gains watch lists
  • Integrated stock charts and screening options
  • Alerts and notifications
  • Built-in StockTwits feed
  • Excellent tools for day traders and options traders


  • No brokerage integration or in-platform trading
  • Maybe cost-prohibitive for small-budget traders

>> Join BlackBoxStocks Now and Start Screening! <<

BlackBoxStocks alerts

Best For

Blackbox Stocks might be a good option for you if you fit into one of these categories:

Day Trading

Day traders are a lot more effective when they work in groups. Blackbox Stocks makes it easy to follow other day traders with its integrated social follow features. Plus, the integrated chat room makes it easy to form wolf packs with other like-minded traders.


Blackbox Stocks’ unique options scanner makes this stock screener a natural fit for options traders. It has intuitive features that will save you hours of research time, and it can help you find the best contracts for your trading strategy. It’s fully customizable as well, so you can program it to scan for exactly what you want.

Read our full Blackbox Stocks review for more info.

>> Click Here to Get Started with BlackboxStocks <<

Stock Rover Review

Stock Rover

Stock Rover is the first stock screener on our list that has a free component. However, it has plenty of advanced features, and its premium upgrades make it a worthy tool for any serious trader.

This stock screener is built on a web-based desktop, so you don’t have to download any software to get started. If you’re working on an outdated computer, you’ll appreciate the easy-to-use platform.

Stock Rover has everything you would expect from a high-quality screener. However, it’s a little more user-friendly and has a less intimidating interface than some of the other options on our list.

Stock Rover’s free stock screener allows you to get a feel for the platform and access some basic features, but you’ll need to upgrade to premium to unlock its full potential.

Premium subscriptions come in three tiers, each with a different set of features and prices. Click here to see the complete breakdown.

For our intents and purposes, we’re going to review all of Stock Rover’s features. But, be aware that access to these features could be limited depending on your subscription tier – or lack thereof.

>> Get started with Stock Rover now. It’s free to join! <<

Stock Rover Insight Screener

Best Features

Stock Rover has an impressive lineup of features, but these are the most notable benefits:

Free Stock Screener and Premium Trial

You can signup for Stock Rover for free and get complimentary access to premium features for a full two weeks when you join. Best of all, you don’t need a credit card to register. Simply sign up with your email and you’ll automatically have access to premium. Once the trial ends, Stock Rover will automatically downgrade you to the free version, and you’ll have to subscribe to restore your access.

The free trial is a great way to introduce yourself to Stock Rover without opening your wallet. Best of all, you don’t need to worry about getting charged for an automatic renewal down the road because you don’t need to input your billing info to access the free trial. Plus, Stock Rover’s powerful trading tools could significantly improve your trading results during that time span. It’s all free, so sign up here.

Built-In Research Reports

Stock Rover has detailed research reports built directly into the platform. Reports are available for each of the 7,000+ stocks in Stock Rover’s database, and the reports feature independent investment information from qualified pros. Each individual equity report includes a detailed evaluation of a wide array of investing factors and more than eight pages of in-depth analysis.

>> Signup for a No-Obligation Free Trial Now (No CC Needed!) <<


  • Partial access available for free
  • Complimentary 14-day premium trial with no billing information required
  • Built-in research reports
  • Advanced portfolio analytics with available brokerage integration
  • Charts and dynamic tables
  • Insight panel with in-depth financials
  • User-friendly interface
  • Up to 10+ years of historical data
  • Sophisticated metrics available
  • Database includes mutual funds, ETFs, and stocks
  • ‘Investor Warning’ feature alerts users to potentially risky stocks
  • Correlation analysis
  • Future dividend income projections
  • Portfolio Rebalancing shows you how to properly diversify your holdings
  • Wide variety of affordable pricing options


  • No social component
  • No trader education courses

Stock Rover research reports

Best For

Stock Rover is one of the best stock screeners for these applications:

Casual Trading

Stock Rover is user-friendly and affordable. It offers many of the same features as more advanced stock screeners, but it has a less intimidating user interface than many of its competitors. Better yet, it has several affordable pricing options so you only have to pay for what you need.

A Stock Rover subscription costs significantly less than some of the other options on our list, so it’s a great choice for traders who want an edge in the market without breaking the bank. You can get started with a free 14-day trial here.

Fundamental Analysis

Many of Stock Rover’s most notable features focus on good ol’ fashioned fundamentals. It has built-in research reports and a massive arsenal of metrics to help you zero in on the best trades without getting weighed down in a mire of endless technical analysis minutia.

Read our full Stock Rover review for more info.

>> Try Stock Rover Free for 14 Days <<

Scanz review


Scanz is a unique addition to our best stock screeners list. Most screeners focus on the financial side of the stock market, but Scanz lets you search through the latest news reports for potential catalysts.

This approach might sound counterintuitive, but it actually makes a lot of sense. Stock prices are tied to human perception, and mass media shapes most of that perception.

By following the news, you can get a very good idea of which way the market will go. This is especially true when it comes to individual stocks.

Scanz has various subscription options, but the most affordable plan only includes the news screener. The Scanz stock screener – which is as good as any other on this list – costs a little more money, but you can get a discounted rate if you sign up for both services.

Aside from its unique news scanner, Scanz also has several notable benefits that put it ahead of many of its more prominent competitors, including Level 2 market data and support for OTC stocks.

>> Start Screening with Scanz Now <<

Best Features

Here are some of the best things about Scanz:

Scanz easy scanner

Level 2 Market Data

Real-time quotes are good, but Level 2 market data is even better. Scanz users can access Level 2 market data from the NASDAQ, NYSE, and AMEX exchanges when they sign up for the scanner package. Level 2 shows you the exchange’s actual order book, including the best bid and ask prices for each stock. This data gives you much more insight into a stock’s price action than a regular quote, so you can base your trading decisions on the most accurate and timely data possible.

News Scanner

Technical investing has its benefits, but you can greatly improve your trading outcomes by factoring the latest news into your trades. This is especially useful for day trading, where a single headline can spark sharp moves in share prices.  Using the news scanner in conjunction with the Scanz stock screener gives you a significant advantage over the competition.

Scanz news scanner


  • Fully customizable news scanner
  • Powerful stock screener
  • Flexible pricing options
  • Save when you signup for Screener + News
  • Streaming charts
  • Integrates with popular brokers
  • Unlimited watchlists
  • OTC stock screener add-on
  • Scans the Nasdaq, NYSE, and AMEX for data, news, and SEC filings
  • Level 2 pricing and 100% real-time data for all supported exchanges
  • Vast video tutorials library and trading knowledge base
  • Advanced montage data for every ticker
  • Customizable breakouts scanner
  • 7-Day free trial available; no credit card needed


  • No chat, social component
  • No annual billing option

>> Take Scanz for a No-Obligation, 7-Day Test Drive Now <<

Scanz breakouts

Best For

We think the Scanz is one of the best stock screeners for the following uses:

Penny Stocks

Investing in penny stocks is challenging, but the potential payoffs can be enormous. Scanz is one of the best stock screeners for penny stocks because it can scan OTC markets with a $15 per month add-on. Many penny stocks trade on OTC markets, so you will probably get a lot of value out of the upgrade if you’re interested in penny stocks.

Leveraged Day Trading

Quick timing and price execution are essential for successful day trading, especially if you leverage your trades with margin. Scanz includes access to the Level 2 order book for the NYSE, NASDAQ, and AMEX so you know you’re getting the most accurate pricing information. Plus, Scanz has 100% real-time data so you know you’re looking at the most updated information available.

Read our full Scanz review for more info on this powerful screening tool.

>> Try Scanz for Free for 7 Days (No CC Required!) <<


Finviz is one of the best free stock screeners on the internet. However, the free version has limited features so you should upgrade to Finviz Elite for the most comprehensive trading experience.

If you can’t afford to upgrade to Finviz Elite, you can find great stocks with the free stock screener. It has a ton of common fundamental and technical filters, built-in stock charts, a live news feed, investment analysis, financial analysis, and more.

Unfortunately, Finviz’s free scanner has one notable drawback. It uses delayed market data with no live quotes. The numbers you see are only up to date as of the latest trading session.

As a result of its day-old quotes, Finviz free is practically useless for day traders. We think it’s always better to have live pricing data if you can get it, so we generally recommend our readers to go for Finviz Elite.

Finviz Elite offers all the great screening features you’d get with Finviz. The main difference is you can unlock the full power of these investing tools with no limitations. You also get real-time screens, backtesting

If you upgrade, you can customize your screen settings to fit your investing style to a tee.  It also unlocks advanced charting tools, backtesting, custom stock alerts, and more.

Finviz Elite is also relatively inexpensive compared to some of the other options on our best stock screener list, so it’s great for beginners and anyone investing on a budget.

>> Try Finviz Elite Risk-Free for 30 Days <<

finviz elite correlations

Best Features

Here are some of the best things about stock screening with Finviz Elite.

Simple Interface

Finviz Elite has a very similar interface to the free version, so it’s a familiar user experience for most investors. The best stock screeners tend to have very sophisticated dashboards that can be difficult to navigate for less advanced traders, but Finviz has a very straightforward, easy-to-use stock screener with equally powerful capabilities.

Money-Back Guarantee

If you’re asking yourself, “Is Finviz Elite worth it?” you should know that Finviz offers a 30-day satisfaction guarantee on new subscriptions. Once you upgrade, you have a full month to try out the upgraded features; plenty of time to determine whether it fits your needs. If you’re not happy, simply contact support and request a refund. Finviz will give you a full refund for your purchase.

finviz elite


  • Very user-friendly & easy-to-use
  • Built-in news feed
  • Affordably priced
  • 30-day money-back guarantee
  • Available free stock screener with limited features
  • Detailed financial data and analysis of every stock
  • Quotes include insider trading data
  • Track the performance of correlating stocks
  • Backtest technical indicators and trade strategies
  • Save up to 100 custom screens
  • Ad-free experience
  • Screen for stocks, ETFs, futures, forex, crypto, and more.
  • Real-time stock quotes with premarket and aftermarket scanning
  • Email alerts for price moves, insider trades, rating changes, and news
  • Track financial statements going back 8 years
  • Export screeners for use in external applications


  • No data on OTC or AMEX stocks
  • No social component

>> Take Your Trades to the Next Level with Finviz Elite <<

best stock screeners | finviz

Best For

Finviz Elite is a great stock screener for these investing styles:


Finviz has one of the gentlest learning curves of any of the options on our best stock screener list. It’s easy to use, and you can practice with the free version for as long as you want without paying a dime. Once you master the screener, you can upgrade to Finviz Elite for even more functionality. It’s the perfect way to acclimate yourself to the stock market quickly and efficiently.

Fundamental Investing

Finviz seems to prioritize fundamental trading and analysis, so it’s a great option if you use these types of metrics for your investment portfolio. The Finviz quote layout lists all the most important fundamental factors for every ticker so you can quickly find the best stock picks for your investing style.

Read our full Finviz review for more info.

>> Start Screening with Finviz Elite Now <<

Featured Stock Scanners by Category

Stock screeners make it a lot easier to find high-quality stocks for your investment portfolio. However, everyone has different personal finance needs, so we wanted to organize our best stock screeners list into a few popular categories. Here they are:

Best Free Stock Screener


Finviz is the best free stock screener on our list. The free version has more functionality than any comparable free scanners on the market. You can get a lot done with the free version of Finviz, and it won’t cost you a dime.

Once you master the platform, you can try out Finviz Elite risk-free for 30 days thanks to Finviz’s 100% money-back guarantee. It’s a great option for any new trader looking for a way to get an edge in the stock market.

Best Daytrading Stock Screener


Day trading is a tough racket, but Scanz has the tools day traders need for their intraday investment needs. It has a robust stock screener, an arsenal of built-in financial tools, and a cutting-edge news scanner that can scan financial data from the NYSE, NASDAQ, and AMEX.

It even has an add-on for OTC stocks. Plus, you get standard access to the Level 2 order book for every exchange too when you sign up, in addition to real-time quotes. It’s an excellent stock screener for day trading.

Best AI Stock Screener

Trade Ideas

If you want fully automated AI trading, Trade Ideas is your best choice. You can connect directly to Trade Ideas’ Holly AI with an Interactive Brokers Brokerage Plus account, and Trade Ideas will trade stocks in your portfolio based on Holly’s analysis. It’s the equivalent of setting your investment portfolio on autopilot.

However, you don’t necessarily need an IBKR account to benefit from Holly AI. Trade Ideas also has AI-powered watch lists, live scans, and much more. If you believe in the power of AI and want to apply it to your stock trades, then Trade Ideas is the best stock screener for you.

Best Stock Screener Review: Closing Thoughts

Stock screeners are an essential part of any trader’s tool chest. They can lead you to high-potential stock picks that you may have never come across otherwise.

Successful trading requires an independent mind. You might get a positive return if you keep your ear to the ground, but you’re never going to rich by following someone else’s picks.

Stock screeners can find stocks based on your investment style so you take an independent approach to the market. It’s the surest way to get the most out of the stock market, and our best stock screener list is chock full of excellent options.

Remember to click the links to read out our full-length reviews for each screener. Good luck and happy screening!

Chris Dios is an American writer and entrepreneur based in the Greater NYC area. He studied accounting at Drexel University, and he first started investing back in 2018. Chris's trading style favors a combination of fundamental and technical analysis, and he primarily targets swing trades and longer-term investments.