We know the website has been getting slow - as market creation exploded, the UI was flooding Gamma with API calls (it had no market paging 🤯). We've shipped a new internal gateway API built in Rust and rebuilt the pages from scratch on top of it, now serving combos (8x faster) and sports (4x faster). Next up, we're working on the event, esports, categories, and home pages to make them load instantly, too. The website will keep getting faster every week. You all deserve a website that feels instant. Left is before (no cache), and right is after (now live)

One of our complaints from traders: the UI optimised orders for speed, not correctness. Some flows updated positions before the exchange responded, then corrected them later if the order was partially filled or failed, but this caused late updates, incorrect states, and failed sells. Now that our indexing and data API is much more performant, we changed this so that market buys and sells wait for the trade response; fills, partial fills, rejections and errors show immediately. This also improves correctness and sell success rate, making it safer and better to trade.

We have built our Polymarket indexing systems in-house, powered by rindexer in Rust. We now see onchain data events up to 14 blocks (28 seconds) faster, and we index within 0-10ms of block broadcasting, making it nearly instant. This means trades, positions, and balances will update much faster. We will use Goldsky as a data backup, but we now primarily run on our own indexing infrastructure.

some users were affected during last week’s CLOB downtime we want to make this right, and goodwill credits are going out today around 3,000 wallets got goodwill credits automatically. if you think you were affected and did not receive a payment, reach out to me at suhail@polymarket.com with your details by friday september 18 and we will personally review more details:

Polymarket Perps is live. Up to 20x leverage on crypto, stocks, commodities, & more. Deepest liquidity, lowest fees. Long BTC, predict the Fed, short the S&P reaction — only on Polymarket⁠.com 👉

Honest post: the Polymarket DeFi CLOB is full of tech debt. It grew fast, got hacked together, and most of the team inherited it that way. Since joining and building out the team, we have scaled it 10x and made it 3x faster, but it’s not enough; the core foundations of how it’s been built are wrong in almost every way. You try to fix one thing, and another thing goes wrong; the conclusion now is that the codebase can’t be saved long-term. The exchange is the heart of Polymarket; everything runs through it. If we want to be the best exchange in the world, it must be fast, stable, and scalable. We can’t keep patching the old one, where these core foundations are generally missing throughout, so we’re rewriting it from scratch in Rust. Early numbers: 10-20x faster on p99 than today, 200,000 orders per second (15x what we have now, with room to reach 400,000+), and stability under load. This will put us faster than most exchanges, including CEXs. Building it in Rust gives us memory safety with no garbage collector. No GC means no random pauses and no random latency spikes; the tail latency in the benchmarks is the tail latency you get in production, alongside a strict compiler that enforces correctness up front. Data races and memory corruption (the bugs that take exchanges down) can’t exist in the first place. Polymarket has to take it seriously that we are an exchange; this is people’s money, not a joke. To succeed, we have to fix this; otherwise, we will fail. It’s as simple as that. I joined to build the best software in the world, not to maintain some of the worst, and I will do everything I can to make Polymarket a serious exchange. We are aiming to have the exchange ready sometime in Q4 (mid to end). I'll communicate progress as we go so you all know the status. Breaking changes will be minimal for all integrators and will be communicated in advance. We will maintain the existing CLOB and keep trying to improve it as we build this side by side. We can’t wait to throw away the existing CLOB; we dislike it as much as you all do. Make Polymarket fast, finally.

Session keys are now in beta on the trading APIs. A session key can trade on your deposit wallet behalf but can never withdraw - making third-party integrations dramatically better, and unlocking ability to build features that weren’t possible before. A few builders are testing it now. Opening to every builder soon, with session key support coming to the Polymarket UI later. Want early access for your users? DM me.

Crypto vendors hide fees in creative ways. Let's break down how these flows actually work. First, to be clear, Polymarket has: 1. The lowest fees. 2. The fastest settlement. 3. The highest limits. Here's how. First, how do most crypto orchestrators work today? A user attempts a trade. The orchestrator scans the market for the "best rate," picks a route on the user's behalf, and executes. Sounds great. So what's the problem? Issue 1) Markets are dynamic, and pricing can be poor If you rely on orchestration alone, you will give users bad pricing at some point - markets aren't always efficient. USDT to USDC trades at a floating market price, not a fixed one. As of writing, depositing USDT on Hyperliquid carries an 8.7bp markup & Relay costs 15.5bp. The same transaction on Polymarket costs 5.5bp. The bigger the transaction, the worse pricing gets. A $10M USDT deposit through an orchestrator means brutal slippage, slow settlement, or no quote at all - funds stuck. And it is worst exactly when it matters most. Markets dislocate hardest during high volatility, so users get their worst pricing during a big airdrop, election, IPO, or sports game. To give users a good experience, someone has to eat the cost when markets aren't efficient. Apps will say "we have zero fees" - but when markets dislocate, retail gets their face ripped off. Btw – it is not possible to offer 1:1 USDT to USDC for deposits & withdrawals in any size without be arbitraged. Issue 2) Most bridges can't guarantee SLAs Say a user is depositing $10M into Polymarket. Try any leading router rn and you'll struggle to find a quote for a $10M USDT transaction. Should those transactions just get stuck? What happens during the Super Bowl, when everyone bridges at once? We've seen liquidity on major bridges drop below $50k. Should users just not be able to deposit? What happens when rebalancing goes down on a major chain? It happened to BNB recently - funds couldn't get off the chain. Should every BNB user eat 1h+ delays? Every cross-application bridge (i.e., ALL bridges today) is exposed to these failures. To give users a good experience, you need an app-specific bridge with real capital behind it - in Polymarket's case, >$10M dedicated to instant transactions for its users alone. Apps will say "we can bridge from any chain" - then fall over when markets dislocate. How does Fun + Polymarket solve this? Fun + Polymarket routing combines three capabilities: 1. An OTC desk. 2. A world-class aggregator. 3. An app-specific bridge. The result: 1. Best pricing from Relay, Across, LayerZero, CCTP, and others - at all times. Thanks to our relationships with Polymarket, Aave, Lighter & others Fun is one of the largest transaction originators in crypto. This size enables highly preferential pricing. 2. Fun steps in and takes the loss if routers can't deliver SLA-level pricing. 3. Fun holds $10M to fill the transaction if routers can't deliver the size. This thread doesn't even mentioned the other infra to make crypto tx's great: transaction retries, gas retries, slippage monitoring, broad token & chain support, fast pickup times, RPC fallbacks, streaming fallbacks, and more. @Polymarket and @Fun have iterated on this tech for two years. I'm proud of the work, and grateful for the partners we've built alongside. I admire what the Kalshi team has built - this isn't a hit piece, and John is well-intentioned. But it is simply inaccurate to imply Polymarket has inferior crypto rails. Polymarket supports larger orders, faster, with tighter settlement and greater uptime than any other crypto platform today.

You can now secure your Polymarket magic link account with a passkey for extra security. Go to Settings > Passkey MFA and enable it. Passkeys are domain-bound, so even if you end up on a fake site and try to log in, the passkey won't work there. Would advise turning it on.

Up/down polymarkets just got upgraded. Trade 5m, 15m, & hourly crypto up/downs with time-weighted average pricing (TWAP). To celebrate, we're giving away $1M in liquidity rewards across BTC, ETH, SOL, XRP, HYPE, BNB, & DOGE polymarkets.

Crypto up-and-down markets on Polymarket will be resolved using TWAP resolution from Aug 7. - 30s TWAP for 5m markets - 60s TWAP for 15m + 4h markets. We will also be giving $1M in liquidity rewards through August. Integration guides here:

Credit where credit is due: Polygon has been really great over the last 3 months. Including the World Cup, which allowed us to handle trading loads we've never seen before, seamlessly across both our systems and Polygon's. Can’t remember the last issue caused by the chain. Well done, guys👏👏

Saw Rooke was stuck on his case for a long time yesterday. Jumped on it with the team, fully closed in 12 hours. Our CX has been overloaded, and we’re rebuilding it from the ground up. Anyone who knows Shayne knows customer support is his #1# priority. Cases like Rooke’s genuinely kill him, and that urgency runs through the whole team. If you’re stuck like Rooke was, DM me. I’ll get you escalated while we rebuild.

We have also just published our Perps developer docs and SDKs, allowing you to easily integrate Polymarket Perps anywhere, for anything, in a few minutes. The full public release for Perps will be coming in a few weeks.

We just shipped a major rewrite of our developer docs. Clearer integration guides, unified SDK documentation, practical API examples, and a much better path from first request to production. We would love to hear what you think.