Interactive Brokers Prediction Markets Review 2026: Is IBKR a Legit Prediction Market?

An overview of Interactive Brokers

Although Interactive Brokers have been in operation for almost 50 years, they have only been offering prediction market contracts since late 2024 and are not yet quite as famous as some other leading prediction market brands, such as Kalshi and Polymarket. With that in mind, I want to start this review by giving you a broad overview of Interactive Brokers:

How do Interactive Brokers prediction markets work? 11 essential facts

If you have read my other prediction market guides, for example, my Prophet Exchange review, you’ll have a solid understanding of exactly how to trade at prediction market sites. But just in case you’re completely new to the concept, or want a quick refresher, here’s a guide to how Interactive Brokers prediction markets work.

1. The prediction markets at Interactive Brokers cover areas such as cryptocurrency, politics, the economy and even the climate.
2. Each market poses a question. Whilst most of these questions have simple ‘yes/no’ answers, some are multiple-choice or scalar questions with range-based outcomes.
3. Each potential outcome has a price of between $0.01 and $0.99 attached to it. This reflects the perceived likelihood of that outcome occurring. The higher the price, the higher the perceived likelihood of the event occurring.
4. These prices change based on real-time trader activity at Kalshi, CME Group, and ForecastEx. If the majority of traders are backing a certain outcome, the price of that outcome will go up and vice versa.
5. To help you assess potential trades, Interactive Brokers also display their markets as percentages. For example, a market option shown as 60% will have a price of $0.60.
6. To participate in a market, you need to buy contracts in one of the potential answers. For instance, if you decide to buy 10 contracts and the market price is $0.50, it will cost you $5.
7. After buying your contracts, you can trade out of them at any point before the event ends, provided there is enough liquidity in the market.
8. Once a market has settled, all contracts on successful outcomes settle at a price of $1, whilst unsuccessful contracts all settle at $0.
9. If you have contracts on successful outcomes, you receive a payout of $1 multiplied by the number of contracts you purchased.
10. Your overall profit on successful contracts is calculated by deducting the cost of your contracts from your payout amount.
11. If your contracts are on unsuccessful outcomes, you lose the value of those contracts. In other words, trading on prediction markets is NOT risk-free, so make sure you trade responsibly at all times.

Sign up for Interactive Brokers and start trading

Explore diverse prediction markets at Interactive Brokers

Is Interactive Brokers a fully legitimate prediction market site?

Like all other legitimate prediction market sites, including the one featured in my ROLR review, Interactive Brokers is fully regulated by the Commodity Futures Trading Commission (CFTC). This means that Interactive Brokers is a trustworthy and legitimate prediction market site that complies with strict rules relating to important areas such as security, fairness and transparency. Because of this, you can place trades safely, in the knowledge that your data (both financial and personal) will be secure and all of your successful predictions will be paid out in full.

Comprehensive security features

I was very impressed by the comprehensive security measures in place at Interactive Brokers. As you will discover later in this guide, there is a rigorous verification process you need to go through when you open your account. This is to ensure that you have the financial means to trade, as well as sufficient knowledge of how the markets work. When you also throw in some comprehensive training modules, advanced SSL encryption and extensive privacy information, it is clear to see that Interactive Brokers is a fair, secure and legitimate prediction market brand that takes the safety of its traders very seriously.

Who can sign up at Interactive Brokers?

Prediction markets have been in the news a lot in recent times, and their availability is the subject of constant speculation. However, at the time of writing, prediction market sites ARE available throughout the United States. So, if you are at least 21 years of age and located within the US, you can open an account at Interactive Brokers today.

A user-friendly, no frills prediction market website

Whilst most prediction sites fill their homepages with popular markets, the Interactive Brokers homepage also features concise information on how to place trades, plus links to in-depth guides and video tutorials. This importantly sets the brand apart from its competitors and gives Interactive Brokers a very professional feel. When you go through to the market pages via the site’s main menu, you will be able to instantly view featured markets, plus a selection of ‘Closing Soon’ markets typically relating to financial markets.

What prediction markets are available at Interactive Brokers?

By now, you are no doubt wondering exactly which prediction markets are available at Interactive Brokers. Unlike the majority of other prediction sites, Interactive Brokers does not allow you to trade on sporting events or cultural events. Obviously, this may come as a big disappointment to a lot of potential traders, but it is important to point out that Interactive Brokers is a renowned financial trading platform with decades of experience in this field. Because of this, they have decided to focus their prediction markets on finance, politics and other related topics.

Here’s a guide to the different prediction market types currently available at Interactive Brokers:

High quality mobile trading at Interactive Brokers

Like a lot of prediction market brands, including the one featured in my Sleeper Markets review, Interactive Brokers has a fully fledged mobile app that can be downloaded for free from the Google Play Store or Apple App Store. To find the mobile app, simply head to your app store and search for IBKR.

I put the Interactive Brokers mobile app through its paces, and I’m happy to report that it features the same markets, features and menus as the full desktop site. As with the desktop site, I found the Interactive Brokers app to be high performing, easy to navigate, and entirely glitch-free. If you prefer, you can access the full Interactive Brokers website via a mobile browser and enjoy everything that the site has to offer, without needing to use any of your precious device storage space.

Experience seamless event trading with Interactive Brokers

Navigate the Interactive Brokers desktop site with ease

Assessing the Interactive Brokers payment platform

There are several different ways to fund your Interactive Brokers account, including ACH transfer, cryptocurrency (stablecoin only) and bank wire transfer. Requesting your deposit is a straightforward process – just hit the deposit page on the website, then select your preferred payment method and the amount you wish to add to your account. The main negative here is that unless you are depositing via ACH transfer, you may incur a small processing fee.

It is also worth noting that deposit processing times can vary, so make sure you double check this before making your deposit. Withdrawals can also take a few days to be processed, but the good news is that Interactive Brokers does not apply any direct charges to withdrawals. However, you may find that your bank applies a small admin charge to your withdrawals.

Overall, I was slightly underwhelmed by the payment platform at Interactive Brokers, as whilst it is very user-friendly, the processing times and list of available payment methods is not quite as impressive as what I have found at other prediction market sites.

How to get help at Interactive Brokers

The easiest way of getting assistance at Interactive Brokers is via the extensive FAQ section of the website. Here you will find articles covering common topics, including how the prediction markets work and how to place your trades. I found these articles to be excellently written and very easy to understand. Whatever your issue at Interactive Brokers, I can recommend making this FAQ section your starting point when looking for answers.

It is also a good idea to follow Interactive Brokers on their social media channels (Facebook, X, Instagram and TikTok) as these accounts often post useful market information, plus details of any new website features.

If you are unable to find the help that you need in the FAQs or on social media, you can contact Interactive Brokers via live chat or email. As you would expect, live chat offers the quickest response time, but having tried out both services, I can confidently say that you will get a professional response from a highly trained and knowledgeable agent regardless of which channel you use. It all adds up to a comprehensive and highly impressive customer support provision that will ensure you can swiftly find a solution to any queries you have when trading at Interactive Brokers.

Start in style with a $10 Interactive Brokers welcome bonus

If you’ve liked what you’ve read in this Interactive Brokers prediction markets guide and want to open an account with the brand, you will be delighted to discover that new traders can collect a $10 bonus as soon as they complete the sign up process. Here are the steps you need to follow to collect this superb new trader bonus:

1. Use our linked banners to access the Interactive Brokers website. By clicking our banners, you will ensure that you qualify for the $10 bonus.

2. Click the blue Open Account button at the top of the homepage.

3. Complete the registration page by entering your full name and email address, plus setting up a secure password. Please note, you do not need to use an Interactive Brokers prediction markets promo code to qualify for the $10 welcome bonus.

4. At this point, you will receive an email from Interactive Brokers. Just click the link in the email to complete your email account verification.

5. Before completing your application, you will be asked to complete a full verification check. This will require you to enter your date of birth and full residential address, plus additional financial details, such as your tax information, how you plan to fund your account and details of any previous trading experience you have.

6. After finishing your registration, your account will be open and Interactive Brokers will automatically apply a $10 bonus to your account. This bonus can then be used on any prediction market.

For more on this excellent new trader bonus, plus news of the brand’s other promotions (including a high value referral program), make sure you check out the Interactive Brokers bonus guide here at The Gruelling Truth.

Final thoughts on Interactive Brokers – One of the very best prediction markets sites around

I’ve reviewed a large number of prediction market sites in the last year and I can honestly say that Interactive Brokers is one of the most impressive I have encountered. All of the markets at the site are presented in a clear and intuitive way that makes finding and placing your trades a very straightforward process. Better yet, thanks to the $10 welcome bonus you can collect when opening your account, you will be able to enjoy a risk-free first trade. Just remember to use our banners when accessing the site to sign up, as this will ensure that you automatically qualify for the $10 welcome bonus.

It would be remiss of me not to mention a couple of minor negatives I came across during my review. The lack of sports and culture prediction markets is somewhat disappointing, but given Interactive Brokers’ extensive background in finance, I was not overly surprised or perturbed by this. Of course, if sports or cultural prediction markets are your thing, then you will have to look elsewhere, but pretty much every other common prediction market topic is covered at Interactive Brokers, so there is something here to appeal to the vast majority of traders. Similarly, a few more payment options would have been nice, but there are plenty of available methods, so you shouldn’t have too many problems in funding your account. Overall, this is an outstanding prediction market site that I can highly recommend joining today.

Interactive Brokers prediction markets: FAQs