EventWaves
EventWaves gives prediction market traders wallet feeds, skill scores and a high yield scanner for Polymarket and Kalshi.
EventWaves Prediction Market Analytics for Polymarket and Kalshi
What is EventWaves?
EventWaves is a prediction market analytics platform that tracks Polymarket and Kalshi markets, top trader wallets and short dated high yield bonds.
Ready to try EventWaves?
Open the official site and get started in a few clicks.
EventWaves Overview
EventWaves is a research tool for prediction market traders. It collects markets, events and public wallet activity from Polymarket and Kalshi and lays them out in screens you can filter quickly. It does not take wagers or route orders. You still trade on the exchange itself.
The screen most people come for is Bonds. It lists markets priced close to certainty and ranks them by annualized yield against days left. A market at 98 cents that settles in a week shows a yield in the thousands of percent. The math checks out. The risk is real: when one of those near certainties fails, the loss eats months of wins.
Two other tools do the sorting. Skill scores each side of a market from 0 to 100 using the profit and loss record of the wallets holding it, weighted by position size, so you can see whether the money with a track record sits on Yes or No. Top Traders runs a live feed of wallet trades with side, value and price. Portfolio takes a pasted wallet and breaks P&L into 1, 3, 6, 12 and 24 hour windows, which Polymarket's all time view does not do.
Browsing is free. An account gets you a Watch List, saved filters and an API key. The API streams Polymarket markets and events as NDJSON, one JSON object per line, with code samples in Python, JavaScript and Go. Kalshi has no documented API yet.
Who it suits: traders who already know what they want to check and are tired of opening twelve tabs. The yield screen and the skill score have no direct equivalent on the exchanges. Kalshi coverage is thinner than Polymarket, the Discord is quiet, and I would not treat the AI or insider scores as more than a starting point. No paid plan as of November 2026.
EventWaves Key features
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Market explorer
Browse Polymarket and Kalshi markets with price, liquidity, spread and a 7 day chart, and switch between the two sources with a toggle. Filters cover price range, days to resolution, category and score thresholds.
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Events view
Related markets sit under one event so you can compare total liquidity and volume. Democratic Presidential Nominee 2028 held 57 markets and $65.2M in liquidity on 10 November 2026.
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High yield bonds
Compare markets trading near a dollar by annualized yield and days left. A weekly Truth Social bracket at 97.8 cents showed a 4,261 percent annualized yield because it resolved within hours, which is either free money or a trap.
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Top traders
A live feed of wallet trades with name, time, market, side, value and price. You can build trader groups and filter by category or minimum trade size.
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Skill score
A 0 to 100 score built from the profit and loss history of each side, weighted by position size. It shows which side of a market the wallets with a winning record sit on.
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Insider and quant scores
Inside, Quanty and AI columns flag markets the models find interesting, next to the Skill score. The team calls these heuristics based on public wallet history, not guarantees.
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Category filters
Nine top level categories run from politics and sports to economy and finance, each with subcategories. Sports splits into leagues like the NFL and NBA, plus cricket, tennis and esports.
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Watch list
Keeps the markets you care about in one place for a closer look. Needs an account, through Google, an email sign in link or a password.
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Portfolio tracker
Paste a wallet and see its positions with profit and loss across 1, 3, 6, 12 and 24 hour windows. The team built it because Polymarket only shows an all time view.
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Developer API
Polymarket markets and events stream as NDJSON, one JSON object per line, using a key that starts with ew_. The docs ship Python, JavaScript and Go samples with a copy for LLMs button.
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Free browsing
Most analysis pages open without an account. A free login adds the watch list, saved preferences and an API key.
EventWaves Fees
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No pricing page The website had no pricing page and advertised no paid plan when checked on 10 November 2026.
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Free browsing Most analysis pages can be read without an account and without paying anything.
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Free account Creating an account costs nothing and unlocks the Watch List, saved preferences and an API key.
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No trades placed EventWaves does not accept wagers or place orders, so users trade on Polymarket or Kalshi themselves and deal with those platforms directly.
How to use EventWaves
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Open the site
Go to the EventWaves website and look around before you commit to anything. Most analysis pages load without an account, so you can read first and sign up later.
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Start with events
The Events view groups related markets under one card, which is the quickest way to see where the money sits. Set a minimum liquidity filter so thin markets drop out of the list.
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Pick your source
Both the Markets and Events views carry a Polymarket and a Kalshi toggle. Flip the toggle to see markets from the other exchange.
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Filter the markets
The Markets view opens on a 0.05 to 0.95 price range with no limit on days. Open More Filters to set minimum Skill, a maximum Insider score and the Quanty range you want.
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Check the bond table
Bonds lists high probability markets that expire soon, ranked by annualized yield. Keep the price range near 0.90 to 1.00 and read the days to resolution column, because a 12,000 percent annualized yield on a market that resolves in hours still loses everything if the outcome flips.
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Read the skill score
Skill runs from 0 to 100 and weighs the PnL history of each side by position size. Use it to see whether the historically profitable wallets are sitting on Yes or on No.
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Follow top traders
The Top Traders feed shows wallet trades with time, market, side, price and value. Filter by category or minimum trade value, or build trader groups so you can follow a set of wallets.
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Create an account
Sign in with Google, request an email link, or set an email and password. You need an account for the watch list, saved preferences and an API key.
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Build a watch list
Add the markets you want to keep an eye on. The list saves to your account and is there when you come back.
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Look up a wallet
Paste any wallet into the Portfolio look up box. You get profit and loss per position across 24, 12, 6, 3 and 1 hour windows, the intraday view Polymarket does not give you.
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Get an API key
Log in and copy your key, which starts with ew_. Send it as a Bearer token in the Authorization header.
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Hit the test endpoint
Call the test endpoint first to confirm the key works. It returns an ok flag and the server time.
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Stream market data
The markets endpoint returns every active Polymarket market with prices, category and end date. Responses stream as NDJSON, one JSON object per line, so read them line by line.
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Try the code samples
The docs include Python, JavaScript and Go examples plus Polars snippets for filtering, for instance bonds where the best bid is above 0.85. Use Copy for LLMs if you want to hand the whole doc to a model.
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Read the disclaimer
The legal page states that scores and probabilities come from statistical models, scrapers and LLMs that the team says can be wrong. Read it before you size a trade off a number from this site.
EventWaves Demo video
EventWaves Screenshots
EventWaves User Reviews
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This bombshell article exposes how a suspected KPMG insider is winning tons of Polymarket Earnings bets. Excellent work by @EventWavesIO and @ferrellcode.
View on X ↗ -
The golden radar of prediction markets: how strong is EventWaves? EventWaves is a data analysis platform focused on Polymarket. Its aim is not direct trading but helping you quickly find high opportunity, high edge event markets.
View on X ↗ -
Credit to eventwaves - he did the actual on-chain analysis, not me
View on X ↗
EventWaves Review
Pros
- You can read most of the analysis pages without making an account.
- The Bonds table sorts near certain markets by annualized yield and days left, so short dated trades are easy to compare.
- The Skill score shows which side of a market the wallets with a profitable history sit on.
- The Portfolio page splits profit and loss into 24h, 12h, 6h, 3h and 1h windows instead of one all time number.
- The API streams NDJSON, so you can pull every active Polymarket market without holding the full dataset in memory.
- API docs ship with Python, JavaScript and Go samples plus Polars DataFrame examples.
- A free account unlocks the Watch List and an API key, and no paid tier is advertised.
Cons
- One person builds and runs the whole site, so fixes and support depend on his time.
- The scores come from automated models and LLMs that the team admits can make things up.
- Bond yields look enormous only because they are annualized from markets that expire in hours, and a near certain market can still fail.
- Skill and Insider are guesses built from public wallet history, not proof that a trader knows something.
- The API covers Polymarket only, and the promised Kalshi version is still not documented.
- The Watch List needs an account, so you cannot try it without signing up.
- There is no mobile app, and the Discord server had about 17 members.
Our verdict
EventWaves is built for people who already trade on Polymarket and Kalshi and want a faster read on the board. The Bonds scanner sorts near-certain markets by annualized yield and days to resolution, the Skill score shows which side the profitable wallets sit on, and the Portfolio page gives you 1h to 24h PnL windows that Polymarket itself never built. The catch is that this is one person, Matt Lamers, shipping statistical models and LLMs that he admits can produce errors and hallucinations, and the API still covers Polymarket only. Use it if you want a research desk and can live with a small, solo-run product; skip it if you need hand-holding or a mobile app.
Is EventWaves safe & legit?
EventWaves is a prediction market analytics site run by BV9 Research LLC and built by Matt Lamers, a solo founder who also writes its newsletter. It is legit as a research tool: Bloomberg's Matt Levine and Forbes cited its work in early 2026, and I found no known scam or security red flags. The risks are real though: it is a solo project, its automated scores and LLM output can be wrong, and it does not place trades for you, so your Polymarket or Kalshi losses are your own.
X account intel @EventWavesIO
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Based in United States
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Joined X September 2025 1 year ago
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Username changes 1 rename last on Sep 25, 2025
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Signup source United States App Store
Public profile signals from X. Use as one input alongside other due-diligence.
Security scan checked Nov 10, 2026
- Google Web Risk Not flagged
- MetaMask Not flagged
- Phantom Not flagged
- ScamSniffer Not flagged
- EtherAddressLookup Not flagged
- Keplr Wallet Not flagged
Domain www.eventwaves.io checked against Google's lists of unsafe sites and public crypto wallet blacklists.
This is an automated check, not a security audit. The summary is drafted from the project's own pages and public posts, and the domain is looked up on public blocklists. Nothing here is financial advice: only put in money you can afford to lose. How we review listings
EventWaves FAQ
What is EventWaves?
Do I need an account?
What does the Bonds page show?
How is the Skill score worked out?
Does it have an API, and what does it cover?
EventWaves Updates
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All the sharps are on No, but Yes at 14% is decent value I think- 6 views
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Inspired by recent discussion about whether it's possible to learn trading outside an elite firm.
If you're the kind of person that reads this project and thinks it sounds fun, imo you'll be able to learn employable trading skills just fine on your own.- 40 replies
- 72 reposts
- 1.4K likes
- 141.3K views
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@PredMTrader Over 5k people tailed it too hell yeah lmao
- 4 replies
- 1 reposts
- 71 likes
- 5.7K views
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I think Jensen will have some type of admin leave, but according to the rules that won't qualify as a Yes
- 1 replies
- 3 likes
- 254 views
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Comparing Kalshi and Polymarket US
Kalshi now has:
-lower fees
-more liquidity
-better markets
-better security
-perps
-better interface- 9 replies
- 4 reposts
- 104 likes
- 8.4K views
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Draftkings built a model to predict when the Supreme Court would rule on sports prediction markets. Their forecast is mid-year 2028
I wonder how they built that model
They're investing 700MM into these markets, so a pretty high stakes prediction!- 1 replies
- 9 likes
- 687 views
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There we go
https://www.ft.com/content/314e17df-e7af-4814-b208-70a0557cb452?syn-25a6b1a6=1- 34 views
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I do miss having coworkers
- 2 replies
- 11 likes
- 631 views
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Market is extremely jittery, but I kind of lean towards the IPO still happening
- 1 replies
- 2 likes
- 328 views
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Prediction Markets called the midterm elections for the democrats in minutes, while it took the stock market 3 whole days
- 3 replies
- 2 reposts
- 89 likes
- 5K views
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Had to check Apple and sure enough
Most boring tech stock
- 1 likes
- 158 views
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New Silver post actually touches on this. Nice
- 43 views
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People who do polls have the same complaints about modelers that modelers have about markets
No one really likes when their work is used as grist for a higher level abstraction that gets much of the credit- 1 replies
- 138 views
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This is a wonks-only postmortem, so please forgive me for one more: I think @NateSilver538 used to say that he'd prefer you just use Classic in a competition.
But if you allow it (and we should!), then the best Brier Score model of the cycle is clearly Silver Bulletin's Deluxe.
- 14 replies
- 26 reposts
- 832 likes
- 118.8K views
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Wrote a quick piece highlighting some of the best trades and analysis from the midterm elections
https://eventwaves.substack.com/p/midterm-awards- 5 likes
- 234 views
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If your order is in line, stay in line
- 21 likes
- 1.9K views
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I'm a perps noob, but wouldn't it be important to know what specific external data feed is being used to determine the price?
- 5 likes
- 449 views
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Texas governor might be the most interesting race
I've switched my mind multiple times- 1 replies
- 4 likes
- 790 views
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Closing most of my midterm positions
I'm not good enough at election forecasting to chase small edges
Will keep the combos open though- 2 likes
- 193 views
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Why buy republican shares now when you can get a better price in an hour?
(This is dumb, but how it feels to me)- 2 likes
- 196 views
EventWaves Reviews & Comments
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