Event contract trading journal for prediction market traders

Every market you trade becomes one trade, Yes or No, measured on what you staked. See whether your prices are right, which categories pay you, and whether holding to settlement beats getting out early.

  • Calibration and Brier score
  • Return by entry price
  • Return by market and category
  • Yes and No side stats
  • Maker and taker entries
  • Settled and early exits
Prediction Markets tab in the TradesViz trading journal, with net P&L, return on stake, Brier score, a calibration chart and return by entry price

A win rate and a P&L total say little about event contracts. A 90¢ favorite and a 10¢ long shot count the same in both, and neither number tells you whether you paid a fair price. TradesViz gives event contracts their own asset type, with stats built around price, probability and stake.

Find out if your prices are right

Calibration groups your settled positions by the price you paid and puts your actual win rate next to it. A fair price wins as often as it costs, so positions bought near 40¢ should win about 40% of the time. Bars above the line beat the price. Bars below it paid too much.

The Brier score sums that up in one number across your settled positions. 0 is perfect, and always entering at 50¢ would score 0.25.

Calibration chart comparing how often positions won against the price paid in each 10 cent band
Return by entry price chart showing net return after fees for each 10 cent band of entry price

See which entry prices pay you

Return by entry price shows your net return in each 10¢ band, after fees and on the side you held. Early exits count too, because they paid that price. If long shots are eating what your favorites earn, this chart shows it.

Click any bar to open the trades behind it in Chart Explore.

Know which markets are worth your time

Return by market shows your net return on each of your 20 largest market series, so a losing habit cannot hide behind one big win. The Category table rolls your closed positions up into areas such as Sports, Crypto and Economics.

Return by market chart ranking market series by net return on stake
Category, Side, Entry Order and How It Closed tables for event contract positions

Compare how you enter and how you exit

The Side table puts your Yes and No positions next to each other. Entry Order splits maker entries from taker entries, so you can see what taking the price on the book costs you. How It Closed separates positions that settled from positions you sold before the result.

Positions you still hold sit in their own table, with unrealized P&L at the last traded price.

Every market reads like a trade

Each market is one trade in your journal, shown as YES or NO, however many fills it took to build. Symbols are laid out like an option symbol, with the series, date and outcome spelled out, so you can search, sort and filter them like the rest of your trades.

TradesViz trades table listing event contracts with readable symbols, YES and NO sides and net P&L
Event contract trade page with the market question and its price chart with entries and exits marked

Your fills on the market's own price chart

Open any trade to see the market's question and its price history, with your entries and exits marked on it. The header shows your entry as a price and as odds, and compares it with the closing price, the market's last price before the event began, so you can tell whether you beat it.

One model for every event contract

An event contract is a claim on one outcome, priced from 0 to 1. TradesViz stores every contract the same way, whichever venue lists it, so your stats mean the same thing across all of them.

Yes and No are one market

Yes is the outcome the market asks about and No is the other side. Buying No at 85¢ is the same position as selling Yes at 15¢, so both land on one ledger and net correctly.

Returns are measured on your stake

Your stake is what you paid for the side you held, which is also the most you can lose. 100 No contracts at 85¢ is an $85 stake, not a $100 one.

Settlement closes the trade

When a market resolves, the trade closes at its payout of $1, $0 or a scalar amount. Sell your whole position before that and it counts as an early exit.

Any number of outcomes

A market with three or more outcomes is one contract per outcome. Each contract you trade is its own trade, with its own stake and result.

Bring in your event contract history

Your fills and settlements go straight into your trading journal, and importing the same file twice never doubles a trade.

Auto-sync

Connect your platform once, and new fills and settlements arrive on their own.

File import

Upload your platform's activity export to bring in your full history in one go, including fees and settlements.

Custom template

Trading somewhere we do not list yet? The Custom template takes event contract fills from any venue, and every stat on the Prediction Markets tab works from them.

Part of a full trading journal

Event contracts sit in the same journal as your stocks, options, futures, forex and crypto. Filter to one asset type or review everything together, with your tags, notes, PnL calendar, custom dashboards and 600+ stats on every trade.

Event Contract Trading Journal FAQ

What is an event contract?

An event contract is a claim on one outcome. It pays a fixed amount if the outcome happens, usually $1 per contract, and nothing if it does not. Its price runs from 0 to 1, so a contract at 62¢ means the market puts that outcome at about 62%.

What is the best trading journal for event contracts?

TradesViz is the most comprehensive trading journal for event contracts and prediction markets. Alongside 600+ stats, tags, notes and a PnL calendar, it tracks calibration, Brier score, return by entry price, return by market and category, Yes and No sides, maker and taker entries, and settled versus early exits.

How do I get my prediction market trades into TradesViz?

Connect your platform for auto-sync, upload its activity file, or use the Custom template. The full list of platforms is on the supported brokers page.

My platform is not listed. Can I still track my event contracts?

Yes. Use the Custom template with event_contract as the asset type, one symbol per market and the Yes price from 0 to 1. A buy holds Yes, a sell holds No, and a settled market closes at 1 or 0. Every stat on the Prediction Markets tab works from those fills. Market titles, categories, price charts and live prices come from the platforms we connect to directly.

How does TradesViz measure return on an event contract?

Return on stake is net P&L divided by what you paid for the side you held. Buying 100 Yes at 40¢ is a $40 stake, so a win pays $60 before fees, a 150% return. A total loss is -100% before fees.

What is a Brier score in prediction market trading?

The Brier score measures how well your entry prices predicted results. For each settled position it squares the gap between the price you paid and the result, then averages them. Lower is better: 0 is perfect, and always entering at 50¢ scores 0.25.

How are Yes and No positions tracked?

Each market is one trade, shown as YES or NO for the side you held. Prices are kept in Yes terms, so buying No at 85¢ is the same position as selling Yes at 15¢. Your stake and return are still measured on the side you held.

What happens when a market settles?

The settlement closes the trade at its payout: $1, $0 or a scalar amount. A position you sold in full before the result counts as exited early. A position you partly sold and then held to the result counts as settled.

Can I track markets with more than two outcomes?

Yes. A market with three or more outcomes is one contract per outcome, and each contract you trade is its own trade in your journal.

Can I see event contracts next to my other trades?

Yes. Event contracts sit in the same journal as your stocks, options, futures, forex and crypto. Filter to one asset type or review everything together.

What can I do with the TradesViz REST API?

Use Python, scripts or your own applications to read and search your TradesViz accounts, trades and executions, build custom reports, and manage notes and tags. With the required permissions, you can import supported executions, edit journal entries, update trade risk settings, split or merge trades, and delete selected journal data. Execution imports currently support eligible USD US stocks and fixed-multiplier USD futures, not every asset supported by the website.

REST API documentation and examples

Can I connect ChatGPT or Claude to my TradesViz journal using MCP?

Yes. Connect a compatible ChatGPT, Claude or other MCP client to the hosted TradesViz MCP server using browser sign-in; no local MCP server or REST API key is needed. Ask your assistant to summarize recent trades, compare results from retrieved trades, find trades by symbol or tag, or save a review note. Editing and other journal changes require the matching permissions. Connector availability depends on your AI client and workspace settings.

Connect ChatGPT, Claude or another MCP client

How do API and MCP permissions protect my trading journal?

You select the trading accounts and permissions each API key or MCP connection can use. Start with read access and grant editing or deletion separately when needed. Day notes, day tags and general journal notes require a separate opt-in. You can revoke access from the API/MCP dashboard. These tools manage your journal; they cannot place, change or cancel broker orders. AI responses can contain mistakes, so review proposed changes before approving them.

API & MCP overview · API/MCP dashboard

All-in-One Platform for All Traders

TradesViz is designed to be used by traders just starting out all the way to professional traders. The level of customizability and versatility is unmatched by any similar platform.

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You can simulate Stocks, forex, futures and even options on TradesViz. On top of this, you can even replay your trade second-by-second and backtest options using options executions simulator.

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Add trade plans to each trade and trading day to see what rules you break and how they affect your trading. Zoom in on your trading behaviour from a data-driven perspective.

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Add multiple static image charts, setup custom TradingView charts with your executions, MFE/MAE targets and more automatically plotted for all your imported trades!

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Gone are the days of fixed charts you cannot Customize. With AI Q&A, you can now ask any question about your data and get charts, tables and even add them as custom widgets to your dashboard!

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Write notes, tag your notes, search your notes and even ask the AI to generate trade summaries as notes for your trades. TradesViz has a dedicated note tab for all notes management.

Advanced Statistics

MFE/MAE, R/R ratios, Exit Insights, Best/EOD Exit, Multi-Timeframe exit, Market-TA-Comparison, Running PnL analytics, Options greeks analysis and more - all of these on top of existing PnL charts make ~600+ charts on TradesViz.

Not just another journal. We pushed the boundaries of journaling.

With a team of data scientists, researchers and veteran traders TradesViz is built with a singular focus of improving trading performance in a data-driven way.

TradesViz win-rate chart TradesViz seasonality chart

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TradesViz is the only trading journal in the world to be recognized internationally
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TradesViz is the most useful trading journal on the market for finding and quantifying your edge. An all in one trading journal tool for traders.

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Steve Burns

Trader, Author, and founder of NewTraderU.com

PK and the whole team at TradesViz.com have put together an outstanding product with exceptional features. PK provides the most excellent support in the chat help. And if something really isn't working quite right or as expected, they get busy to make it better. I originally signed up for TradesViz to have the simulator function which also gave me the statistical analysis I could use to improve my trading. I had been using a simulator which had almost no analysis. When TradesViz added the simulator function I gave it a try. At first I had a hard time making it work, but with patient explanation from PK and with some tweaking on functionality from the coders on the backend, they have delivered a super trading simulator. The trade analysis part of TradesViz is second to none. I've gained the insight into my trading weaknesses and strengths to be able to trade much better in my live account. This is the service you need!

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Sue 

I definitely recommend Tradesviz especially for new traders the way it tracks your stats is no short of amazing especially for me personally by best exit and and of the stats that tell you how long you usually are in drawdown and you are usually in profit. If you want to build confidence in your strategy and edge this journal is the way to go for sure!

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Kamaure 

TradesViz has made a huge difference in my trading and has positively impacted my trading for the better in psychology and profit.

I use it DAILY and have noticed the vast improvements being made, not only in profit but also in my mental approach to trading.

This is a must-have tool and is more important than any indicator you could ever use.

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Tammy 

I've subscribed, at different times, to various reporting programs, and trialed several others.
Yours is night and day over them all. I particularly appreciate the degree of available customization and your quick, ever-patient response to support requests.
I have a small trading account. Thank you for offering such a sophisticated program at an affordable price.

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Stephen 

TradesViz is a true leader in Trade Journaling Software. They offer extensive statistical data at an amazing price that almost seems too good to be true. You have access to an amazing support team that seems to be active at all hours of the day. My support agent helped me through a complex import issue and had it solved within 24 hours. I can't tell you how blown away I am with their software and their service. I'm more than happy with my experience and so excited to see what new features they bring to the table as they continue to grow their business. If you're on the fence, I encourage you to jump right over and take it for a spin with their risk-free trial. Thanks to all the TradesViz team members who continue to make my Trade Journaling efficient and effective.

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David 

Day Trader

GREAT PRODUCT AND EVEN BETTER CUSTOMER SUPPORT!

I have been using TradesViz for a few months and it is a fantastic tool. Prior to subscribing, I was spending hours on xls trying different tables and layouts and only getting frustrated (or overcomplicating things!). Now I have everything in one place (I have multiple trading accounts), and I have probably only explored 10% of the tools and data analytics!

BUT, what has really impressed me is the support: I have NEVER in the last 10 years had such instant, professional support from a company at (almost) anytime of the day or night!
Clearly this is a team that is passionate about their product and that will always translates into innovation and better experience & value to the customer.
Well done to the team!!

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Miknik 

After only a short time of using TradesViz, I can confirm that this platform is exactly what I have been looking for.  It takes the chore out of journaling – the number of stats, data, and information available on my trades is a complete game-changer.  The importing process via MT4 file is extremely easy and the automated charts with entries are amazing.  The whole process is extremely easy and helps to keep me accountable for my trading by having a professional system to manage my business.  The platform is very comprehensive and takes a bit of time to get used to, but they have many videos on their YouTube to help with this as well as their support team. 

 

Their support is exemplary and gets back to all my queries in well under 30 minutes with comprehensive answers and solutions to my questions.

 

This platform is absolutely essential for any trader and I would highly recommend it to any of my trader friends looking for a journal. If you don’t have this platform, you are seriously missing a trick here…

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Cameron 

Thanks, PK from TradesViz for being extremely helpful and patient in resolving my syncing issue. Certainly one of the best online support I have ever experienced. Even though it took a while for me to get my settings right, I never felt rushed...I appreciate that. Hope to stay with you guys for a long time. Certainly would like to learn how to utilize most of the features on TradeViz.

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Ali Abubakar 

In my opinion, the TradesViz platform is truly the Ferrari of journaling software available today. Once you are under the hood, you begin to realize that in fact what sets it so far apart is all the advanced analysis at your fingertips. Such as the ability to combine multiple portfolios, live charting, and much more. Their support is world-class, in my case personally, I needed integration with Trend Spider’s backtesting engine. What I imagined might take weeks was literally accomplished overnight. Factor in rock bottom prices and you have all you need for whatever you're searching for. Newer traders will find that one of the most basic recipes for success is meticulous record keeping, simply observing your account profit and loss go up, or just down as the case may be, is the first step on the road to ruin if your serious about trading.

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R Burton

Trader

I'm writing this testimonial as appreciation for this surprisingly pleasant
conversation.

Upon my initial support request, TradesViz's support was impressively swift. A response appeared every single time as soon as I closed my email tab. Not only did I receive incredibly helpful information about features I wasn't aware of, but the team was also genuinely enthusiastic about discussing my feature requests and ideas about the industry. Truly awesome people!

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Luka 

In terms of raw analytics, comparison, and filtering capabilities, there is no match for TradesViz. I also don't know of any other trading journals that offer so much for the price, their free version has pretty much everything you would need if you trade stocks and offer so many of the paid features that are on other websites for free. They have templates for almost every broker and if it's not there, their support team is only 1 email or message away and will work with you to include your broker on their platform. By far the best support I have gotten from any trading journal as they are open to feedback and feature requests and are very active on their chat for any questions. A trading journal built by traders, for traders.

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Gregory 

Professional Futures Day Trader

I wish I had TradesViz when I started to trade ten years ago. I had to learn the hard way. It provides everything you need to maximize your wins and minimize your losses. 

There’s a learning curve but once you get past that your trading will surely be taken to the next level.

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Jason Freeman

Founder of ChartLearning.com

As a full-time trader, the first pivot point in my trading results came after I started to learn from Mark Minervini - this is when I stopped losing $$$. The second pivot point came after I started to analyze my results - this is when I started to be consistently profitable $$$.

I love that TradesViz works for Options, Stocks, Crypto! It has automated and manual uploads. It has all the important metrics and analysis that you will need and it is fully customizable.

I have tried pretty much most of the products out there, and TradesViz wins by a mile - highly recommend it! Thanks to PK and the team!

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TinTinTrading 

Thanks, @MightySoldiers for turning me on to @tradesviz. I'm loving the customized dashboard. The level of detail and ability to really dig deep on metrics is unparalleled. This tool has helped me so much in defining my trading strategy and where my edge is.

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Jeremy 

Trader

I was looking for a solution to journal my trades on multiple platforms to keep track of my PNL. I stumbled upon TradesViz and I have nothing but positive to say about their service. Not only does their product make it so easy to see how you are doing on your trades with the various graphs and filtering options, getting your account synced is super intuitive. Best of all their customer service is top-notch. Every time I have asked a question, they have responded within a few hours with a solution, and sometimes that involved programming custom solutions for me to make my life easier. It's a no-brainer for me to pay for the yearly service. Do it, you won't regret it.

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Ameet 

E-commerce Analyst and Trader