STOX

Wall Street runs on Robinhood rails now. 1000x stock perps, zero market impact, one house everyone owns. build on @robinhoodapp power by @HyperliquidX

[STOX @STOXPREPS]

How they were listed: two owner transactions per market (relay.addMarket + exchange.setMarket), no redeploy, no downtime. The keeper picked them up within 60 seconds and has been posting prices every 5 s since.

Risk bands by realised vol of the fund, not its holdings: SMH / MAGS / XLE / EWJ on the large-cap band, XBI / URNM / EWY on high-vol, TLT on the index band (6bp regular / 10bp off-hours) because long bonds barely move.

Not listed on purpose: SOXL. 3× fund under 1000× leverage is not a product we want to offer. Gold, silver, oil, copper, Nikkei, KOSPI and FX are available on the same price feed. Tell us what you want next.

[STOX @STOXPREPS]

8 ETFs just went live on STOX. 32 markets now.

SMH · MAGS · XLE · XBI · URNM · TLT · EWJ · EWY

Semis, the Mag 7, energy, biotech, uranium, 20-year Treasuries, Japan, Korea. Long or short, up to 1000×, 24/7, 1-click with no gas.

Same House pool. Lose and you're still minted House Shares.

https://t.co/x0gjpx4IBu

[STOX @STOXPREPS]

What we changed today, why, and how losers still get paid :

papertrade published an honest note this morning. Three things stood out: PAPER will stay non-transferable because a token minted on losses, if shortable, lets attackers short the bankroll's own solvency. They added a fee on closes within 6bp of entry (10bp off-hours) to stop quote-latency scalpers. And they're changing issuance so each dollar lost mints a fixed share of supply, weighted higher near insolvency.

We run the same kind of House. So we spent the morning checking each of those against our own contracts. Two of the three were already handled by design. One needed a parameter change, which is now live on-chain. Here's the full picture.

1. The scalp band

Our payout haircut is a curve, not a flat fee: payout = (1 - base) × move / (move + m0). The number m0 is the point where a winner keeps under half the raw gain, and it is set separately for regular hours, extended hours and overnight for every market. That is a continuous version of what papertrade just added as a step.

Today we raised every market's m0 to at least 6bp regular / 10bp extended / 12bp overnight. Large caps were already 8 / 16 / 24 and high-vol names 12 / 24 / 36, so they didn't move. The two index markets went from 4 / 8 / 12 to 6 / 10 / 12. Two transactions, no redeploy, no open position touched.

What it means in practice: close NVDA 6bp from entry during regular hours and you keep about 39% of the gain. Close it 60bp away and you keep 77%. Scalping quote noise doesn't pay; holding a real move does. The order ticket now shows the live band for the market and session you're in.

2. Sponsored gas

Since the v2 upgrade our relayer pays gas for every 1-click order. That is a convenience for you and an attack surface for us: spam sign-ups and intents that revert on purpose would drain the relayer wallet, and that wallet also posts prices and runs liquidations. As of today the relay refuses to sponsor more than 300 transactions per account per day, refuses to sponsor registration or opens for accounts holding under $5, has a global daily gas budget, and stops sponsoring entirely if the relayer's balance gets low so price posts and liquidations always have fuel. Closes are always sponsored. Nobody gets trapped in a position. All of this is checked before anything touches the chain.

3. Transferability

This is the one we didn't have to change, and it's the one worth understanding.

papertrade's problem is that PAPER does two jobs. It is the rebate you get for losing, and it is the protocol's value token. The rebate job forces it to track bankroll solvency one-for-one. That makes its price a public quote on the House's health, and a shortable quote on the House's health is a weapon: drain the bankroll with manipulated fills while short the token, get paid twice.

We split those two jobs into two assets on day one.

House Shares are the rebate. They are minted only when you lose, at the current NAV of the pool. They cannot be transferred and cannot be shorted. They are a claim on the House, nothing else.

STOX is the protocol token. It is never minted on losses. It trades freely on Uniswap. Its value comes from buybacks funded by fees, so it's correlated with how much the House trades, not with whether the House is solvent this minute.

Shorting STOX does not change the payoff of attacking the House, because STOX isn't the House's solvency oracle. That's why STOX can be liquid and the House can keep growing without one threatening the other.

4. How a loser still gets paid, and why the loop closes

Step one: you lose $100 on a trade. The $100 goes into the pool. The 2% fee comes off ($2); half goes to existing share holders in USDG, half goes to the buyback contract.

Step two: you are minted House Shares worth $100 at the pool's current NAV, scaled by three coefficients. Direction: if you were long and short the same market at once, the hedged portion mints nothing, which kills the straddle attack papertrade described. Time: a position held longer mints more than one flipped in seconds. Session: regular-hours losses mint full weight, off-hours less, because off-hours prices are the easier ones to game.

Step three: your shares earn. Every future trader's 2% PnL fee sends half to share holders. Every dollar the pool holds above the $3M soft cap flows to share holders. And the buyback contract, fed by the 0.5% open fee on every position plus the other half of every PnL fee plus a slice of the STOX transfer tax, buys STOX on the open market and streams it to share holders and stakers.

Step four: STOX is tradable, so that buyback demand is real price support, and you can sell what you receive or stake it for a tighter haircut band and a larger share of fees.

Step five: because shares are minted at NAV, the maths does what papertrade is now trying to bolt on. When the pool is deep, NAV is high and a dollar of loss mints few shares. When the pool is thin, NAV is low and the same dollar mints many shares. Losers who refill a weak House are rewarded more than losers who top up a full one, automatically, with a $0.01 NAV floor so an empty pool can't mint infinitely. That is their "time-weighted mint near insolvency," except it falls out of the accounting rather than being a schedule.

The loop: traders lose into the pool, the pool pays winners, fees buy STOX, STOX flows back to the people who lost, those people stay in the game, and none of it requires the rebate asset to be tradable.

5. What we didn't do

We didn't ship a new contract version. Nobody has to migrate, nothing moved. We also didn't match their builder codes or on-chain timelock yet. Both are on the list.

Respect to the solana:G7Cpe3G1b9GAovKpKbvNSSLdm9jqpogvn1hUJsBMpump team for writing it plainly. We looked at the same problem earlier and made a different structural choice. Today was about making sure the parameters match the structure.

https://t.co/x0gjpx4IBu $STOX

[STOX @STOXPREPS]

Minor update:

We improved the user experience on the mobile pages (before the iOS app launch)

[STOX @STOXPREPS]

Hi 你好 哈囉 こんにちは 안녕하세요 Hola Olá Salut Hallo Привет Merhaba Xin chào Halo สวัสดี مرحبا नमस्ते

STOX perps now speaks 16 languages.

Pick yours from the header on https://t.co/6PApQRyFbh

— it auto-detects your browser and remembers your choice.

US stocks, up to 1000x, on-chain. Same house, more voices.

[STOX @STOXPREPS]

The first on-chain US stock options exchange

history making at 10/19/2026

note it

[STOX @STOXPREPS]

How STOX perps actually works. One picture, no fluff.

1/ Price. Every seconds a relay pulls US-stock perp marks from Hyperliquid's xyz dex, sanity-checks them against two other sources, and 2-of-3 signers post the grid on Robinhood Chain. 24 markets: NVDA, TSLA, HOOD, SPCX, MU, AMD… trading 24/7.

2/ You trade against the House. There is no order book and no market maker. You deposit USDG, pick a market, a side and leverage up to 1000x, and your counterparty is one shared pool. With 1-click mode on, the relayer pays gas — no popups.

3/ Fees. 0.5% to open, that's it. On close, 2% of your profit or loss. Liquidation sits at 1/leverage minus 0.05%.

4/ Losers feed the pool. Lost margin goes straight into the House. In return you are minted HouseShares: loss × a bonus that starts at 3x and decays to 1x over 30 days. Shares claim the pool's overflow plus a STOX stream — losing early is how you own the House.

5/ Winners are paid by the pool. If the pool is thin, you enter a FIFO queue; after 6 hours the Reserve pays you out. Nothing is printed to cover it.

6/ Every fee buys $STOX. 100% of open fees and half of PnL fees go to the Buyback contract, which buys STOX on market and splits it 50/50 between stakers and HouseShare holders. Stakers also keep more of their wins (smaller haircut).

7/ $STOX: zero team allocation, no mint function, no inflation. The only way supply moves is the buyback.

All of it is on-chain and open: https://t.co/x0gjpx4IBu. Android app: https://t.co/8xoPhh3gEc

[STOX @STOXPREPS]

@augustisdoing people useing it there has no problem , and after another round of checks, there’s still no problem.

[STOX @STOXPREPS]

Robinhood Chain is the chain built for US stocks. We're the first stock perps on it.

Wall Street's playbook, on-chain:

• 5s signed grid fills — no front-running
• up to 1000× with partial close
• Hyperliquid marks, 24/7
• fees buy STOX, not a VC's exit

This is day one. We ship every day. https://t.co/x0gjpx4IBu

[STOX @STOXPREPS]

update：

1/Android app is LIVE
iOS is in App Store review
Exchange v2 is on Robinhood Chain mainnet, verified on SourcifyThree upgrades shipped today. Nobody's funds were moved. Details ：

2/ One-click trading — zero popups, zero gas

You sign ONE wallet message. That grants a 30-day session key stored in your browser.From then on every open and close is an EIP-712 intent signed by that key and sent to our relayer, which submits it on-chain and pays the gas. No MetaMask popup. No ETH https://t.co/QnCPgSpT1f: the key can only open/close against the balance you've already deposited. It cannot withdraw, deposit or stake — the contract gives it no such path. Every intent carries a nonce and a 1-hour deadline, and the relayer simulates before it spends gas. Revoke anytime.

3/ Instant fills — same block, live price

Before: your order waited for the next 5-second price grid and showed "Queued".Now: your intent and a fresh relayer-signed price are bundled into ONE transaction. It fills in that block and you see "Filled @ $186.42".If no price ≤15s old exists it falls back to the grid. Also works for normal wallet transactions, not just 1-click.

4/ Fund from any chain

No USDG on Robinhood Chain? Doesn't matter.Inside the app: pick Base, Arbitrum, Ethereum, Optimism, Polygon or BNB → get a quote → one approve, one tx. USDC lands as USDG in the same wallet in ~2 seconds via @AcrossProtocol. We detect it and pre-fill your deposit. Solana and others via Across deep link.

5/ Migration

Old positions and balances were not touched. The previous exchange keeps working for closes and withdrawals, and the Portfolio page has a one-click "Move to v2". House Share holders were copied 1:1 to the new https://t.co/Mp0eoI5rfV:
[https://t.co/8xoPhh3gEc] · Web: https://t.co/x0gjpx4IBu . Still shipping.

0xb4d3a6097b765d094c0950ac03e917a2773eef4d

[STOX @STOXPREPS]

@augustisdoing whats your problem？

[STOX @STOXPREPS]

US stock options on the blockchain

We are making history

https://t.co/iNVRdAfvhd

[STOX @STOXPREPS]

Staking rewards are now fully automated.

A dedicated dividend wallet feeds the Buyback contract

→ drips to STOX stakers and House Share holders, 24/7, no manual step.

And yes: if you lose a leveraged trade, you get House Shares — and those earn STOX too.

by @fomo wallet

https://t.co/x0gjpx4IBu

[STOX @STOXPREPS]

Honest update.

We set out to build a large on-chain options hub for US stocks on Robinhood Chain. 24 perp markets live, up to 1000x, 24/7, one shared House as counterparty.

We did not expect liquidity to be this thin. Early days on a new chain are brutal.

But every liquidation still mints HouseShares, the keeper hasn't missed a tick, and we're still shipping.

TradFi makes you wait for the opening bell. We don't. We're not going anywhere.

https://t.co/x0gjpx4IBu

@MEADGod @vladtenev @RobinhoodCrypto
0xb4d3a6097b765d094c0950ac03e917a2773eef4d

[STOX @STOXPREPS]

Honest update.

We set out to build a large on-chain options hub for US stocks on Robinhood Chain. 24 perp markets live, up to 1000x, 24/7, one shared House as counterparty.

We did not expect liquidity to be this thin. Early days on a new chain are brutal.

But every liquidation still mints HouseShares, the keeper hasn't missed a tick, and we're still shipping.

TradFi makes you wait for the opening bell. We don't. We're not going anywhere.

https://t.co/x0gjpx4IBu

@MEADGod @vladtenev @RobinhoodCrypto
0xb4d3a6097b765d094c0950ac03e917a2773eef4d

[STOX @STOXPREPS]

@fomo
We just applied for the fomo Team Tag.

Team wallet: 0x527c475D3C5E3f0692a97C113C13238b9D17927D

Once approved you'll see the badge on our fomo account. Anyone else claiming to be STOX team is not us.

$STOX on Robinhood Chain · https://t.co/iNVRdAg36L

[STOX @STOXPREPS]

@fomo
We just applied for the fomo Team Tag.

Team wallet: 0x527c475D3C5E3f0692a97C113C13238b9D17927D

Once approved you'll see the badge on our fomo account. Anyone else claiming to be STOX team is not us.

$STOX on Robinhood Chain · https://t.co/iNVRdAg36L

[STOX @STOXPREPS]

@youngcantonian Yes, we are doing this, but our system is fully automated. I don't know if sending the tokens to a FOMO account will allow our system to continue with automated staking rewards.

[STOX @STOXPREPS]

10 more US stocks just went live on STOX. 24 markets now.

HOOD · SNDK · MU · INTC · CRWV · AMD · MRVL · NBIS · CBRS · MRNA

Yes, HOOD. You can now trade Robinhood stock at up to 1000x, 24/7, on Robinhood Chain. We think that's funny too.

The whole batch took 20 transactions and zero downtime. No Exchange redeploy, no pause, no migration. The keeper saw the new markets on its own and was posting prices 24 seconds later.

Every one of them: up to 1000x, 24/7, priced off Hyperliquid xyz, one shared USDG House on the other side. Lose and you're minted HouseShares. Win and the pool pays.

Memory, AI infra, chips, biotech, and the broker itself. If Hyperliquid prices it, we can list it in minutes. Tell us what's next.

https://t.co/x0gjpx4IBu