RateX

RateX is a yield trading protocol on Solana (not the LaTeX engine or the rodent bait of the same name). It splits a yield-bearing token, such as a liquid staking token or a yield-paying stablecoin, into a Principal Token (PT) and a Yield Token (YT). Buying PT locks in a fixed rate until a set expiry date. Trading YT lets you bet on whether yields will rise or fall.

What sets RateX apart is margin. Traders can go long or short a YT with borrowed funds, which RateX calls leveraged yield trading. The protocol went live on Solana mainnet on 17 October 2024 and also runs on BNB Chain. Its token is RTX.

How does RateX work? PT, YT and implied yield

RateX first wraps each deposit in a Standard Token (ST). An ST holds its price steady and pays yield by adding more tokens to your balance. RateX's own example: 1 ST-JitoSOL stays worth 1 SOL, and at a 10% yield your balance grows from 1 to 1.1 over a year.

Each ST then splits into two parts that add back up to the whole:

• PT converts 1:1 into the underlying ST at expiry. Bought at a discount, it works like a zero-coupon bond.
• YT collects all the yield one ST earns until expiry. Holding YT-mSOL-2412, for example, meant owning the Marinade MNDE$0.024+0.5% staking yield on 1 SOL until 28 December 2024.

The price of YT tells you the market's "implied yield": the return it expects from now to expiry. A YT loses value as expiry nears, because there is less yield left to collect. You profit if the yield you actually receive beats what you paid, or if the implied yield rises and you sell early.

Markets are named by asset and expiry. "xSOL-2609" is the xSOL contract that expired in September 2026.

RateX leveraged yield trading: how to long or short yield

Trading happens in YT/ST pairs. If you expect yields to rise, you swap ST for YT. If you expect them to fall, you swap YT back to ST.

With leverage, you put up margin and the protocol lends you the ST or YT to make the swap bigger. That gives you a leveraged long or short on the implied yield. The launch release put the cap at 10x.

RateX's mechanism post gives a worked example. A trader puts up 1 SOL and picks 10x. The protocol lends 10 ST, and the trader swaps them for 100 YT.

A YT is already a bet with built-in leverage. A small outlay buys the yield on a much larger amount of SOL or dollars. That is why partner promotions quote far higher numbers: in October 2025, OnRe advertised up to 137x exposure on YT-ONyc.

Margin positions can be liquidated. A research thread RateX reposted in October 2026 makes the point plainly: adverse moves can trigger liquidation.

How to earn a fixed yield on RateX

Buying PT is the fixed-income side of RateX. You pay less than the underlying is worth today and get the full amount back at expiry. The gap is your fixed return, as long as you hold to maturity.

When OnRe ONyc$1.16+0.4% listed its ONyc reinsurance token on RateX in October 2025, for example, PT-ONyc was quoting a fixed APY of about 13%. Fixed rates change with the market and differ for each expiry, so check the live quote before you buy.

The trade-off works like an interest rate swap. You give up any upside if yields rise in exchange for certainty. Selling PT before expiry means taking the market price, which may be lower than what you paid.

RateX liquidity pools and the time-decay AMM

RateX pools are built for tokens that expire. A liquidity provider (LP) puts in one token that pays yield. The protocol turns it into ST and YT and pairs them in a pool. As on Uniswap V3, the cash sits in a set price range.

A YT is worth less each day as its end date nears, so the pool keeps itself in balance as yield is paid. RateX says this cuts the losses LPs take when prices move. By the end date, those losses fall to zero.

Each leveraged trade is a swap against these pools. So LPs take the other side of traders' bets on rates. Getting out can be slow, too. If the pool lacks the YT to close an LP's position, part of the deposit waits until more comes in, per the mechanism post.

Mooncake: RateX's liquidation-free leveraged tokens

Mooncake is RateX V2. It turns a leveraged position into a token you can hold. You don't open a margin account that can be liquidated. You just buy a token that has the leverage built in. RateX announced it with its November 2025 funding round.

The funding news lists four parts:

• yield tokens that pay in dollars
• leveraged tokens with no liquidations
• leverage markets that run fully on-chain
• tokens that work with other Solana DeFi apps

Soon, anyone who stakes RTX will be able to open new Mooncake markets, per the RTX tokenomics post. That starts once market creation opens to all. No liquidation does not mean no loss. Leveraged tokens can lose value when prices swing back and forth. RateX has not said in these posts how Mooncake deals with that.

Which assets can you trade on RateX?

Each RateX market is one token with one end date. When it ends, a new one opens. The first markets were staked SOL tokens, such as JitoSOL from Jito JTO$0.363+3.1% and mSOL from Marinade.

Now most markets are on stablecoins that pay yield, and on tokens backed by real-world assets. These markets ended in late September 2026:

• Hylo tokens: xSOL, hyUSD, sHYUSD, hyloSOL and hyloSOL+
• OnRe's ONyc
• PST from Huma Finance HUMA$0.016-16.5%

In July, sUSDu from Unitas USDu$0.999+0.1% moved to a new contract ending in October 2026. DeFi Development Corp. dfdvSOL$106.22+3.6%'s dfdvSOL was added in a June 2025 deal.

Watch for one fee. If you leave expired tokens unclaimed for more than 14 days, RateX charges 2% a year on them, per its July 2026 notice. Claim or roll over soon after a market ends.

Is RateX safe? Audits, liquidation and other risks

RateX carries the usual smart contract risk plus the risks that come with leverage. We could not confirm any published audit of the RateX programs, and we could not check who can upgrade them.

• No named auditor or audit scope appears in any primary source we could reach. RateX's website and documentation were unreachable when we checked in November 2026, and neither the launch release nor the funding coverage mentions an audit. Treat audit status as unverified until you have read a report that covers the program version you are using.
• RateX doesn't publish its program addresses in the sources we could reach, so the upgrade authority is unchecked. Before depositing a meaningful amount, look up the program in an explorer and check whether a multisig or a single key can upgrade it.
• Margin YT positions can be liquidated if the implied yield moves against you. A YT's value also falls as expiry nears, so you can be right about the direction and still lose money if the move comes too late.
• A PT or YT is only as sound as the token beneath it. Many current markets are on newer stablecoins and real-world-asset tokens, which add their own issuer and depeg risk. As the October 2026 Capy Research thread put it, fixing a rate does not remove the underlying asset or protocol risk.
• Each expiry is its own pool. Leaving before maturity means trading against that pool's depth.
• The founder, Sean Hu, is named publicly, but there are few other team disclosures. RateX is small next to Solana's large DeFi protocols. The TVL widget on this page shows its current size.

Who RateX is for

RateX is for DeFi users who already hold a Solana token that pays yield. That could be staked SOL or a stablecoin. It helps most if you have a view on where rates are heading.

• If you want a known return to a set date, buy PT, and be comfortable holding it until expiry.
• If you trade rates, YT with margin lets you back a view on staking or stablecoin yields. This only makes sense if you understand implied yield, time decay and liquidation.
• If you provide liquidity, you earn from the pool's trading but take the other side of leveraged traders.

RateX is a poor fit for anyone who simply wants to earn staking yield. Holding the liquid staking token, or staking SOL directly, is simpler and avoids both expiry dates and leverage.

RateX vs Exponent, Pendle and Spectra

RateX is the Solana venue built for trading yield with margin. Exponent, its closest rival on Solana, is the other place to compare fixed rates.

Exponent also splits tokens into PT and YT. RateX is built around margin trades on YT. Exponent v2 is built around its pools. LPs there pick a band of implied rates to provide liquidity in, and traders can set limit orders at a target rate, per the October 2026 Capy Research thread. Exponent has also added risk tranches and srONyc markets.

Pendle made the PT and YT model popular on Ethereum and other EVM chains. Spectra lets anyone open PT and YT markets for compatible ERC-4626 tokens on those chains. Both are built around EVM assets rather than Solana tokens.

If both RateX and Exponent list the asset you hold, compare their fixed rates for the same end date before you buy.

RTX token: tokenomics, airdrop and buybacks

There will only ever be 100 million RTX, per RateX's tokenomics post.

About a sixth of that supply was in circulation at launch. The token runs on Solana and on BNB Chain. Its Solana mint is J1wnHdKvP34fg7TtYdX63UPJMTdXNzJGEqfNJB22vKjU.

Out of the ecosystem share, 6.66% of all RTX was kept for the first-season airdrop, plus campaigns and market-making. It pays out in stages over half a year, with half held back to the end.

RTX went live in December 2025, the month RateX put out its token plan. It trades on Binance Alpha, which ran a second RTX airdrop wave in June 2026.

RateX plans to spend up to 30% of its revenue, from both RateX and Mooncake, to buy back RTX. The tokens it buys go to users and partners who help the protocol grow. Once Mooncake opens market creation, stakers who start a market will earn a share of what it makes.

RateX funding, team and history

RateX has raised $10.4 million in three rounds, per the Crowdfund Insider report from November 2025. The last round brought in $7 million. Animoca Ventures, GSR and Crypto.com Capital took part. So did Gate, ECHO, Rzong Capital, BGX Capital and Summer Capital. Sean Hu is the founder.

Before launch, RateX took first place at Solana's Renaissance Hackathon and won a grant from the Solana Foundation. It went live in October 2024 with Jupiter and Jito as launch partners, per its launch release.

Through 2026, RateX has kept opening new markets as old ones end. Most are on stablecoins and tokens backed by real-world assets. Its X account was still posting these updates in late September 2026.