Hold a portfolio.
Keep it on course.
Pick your stocks and the split. Sextant buys the whole portfolio in one transaction, reads how far it has drifted at Robinhood's own prices, and puts it back on course in one more.
Price a portfolio
Real quotes, right now
Choose a course and an amount. Every line below is a live quote from Uniswap on Robinhood Chain for the exact trade the app would send — all of them in one transaction.
The course
You put in
Paid in USDG, the dollar on Robinhood Chain. Each trade carries its own minimum; if any would pay less, the whole transaction is undone.
Buy this portfolio →One transaction
How it works
Set a course. Hold it.
Three things, each one transaction you sign in your own wallet.
Set the course
Pick stocks and the share of the portfolio each should be — or start from a ready-made course. The split lives in your browser and in a link you can keep.
Buy it in one go
Put in dollars and Sextant builds one transaction that buys every stock at once through Uniswap. Each trade has a minimum; one miss and nothing moves.
Take a reading, correct
Prices move and the split drifts. Sextant shows the drift at Robinhood's own prices and sells what grew past its share to buy what fell behind — again, one transaction.
The readings
Two prices, side by side
What Uniswap's pool charges, beside what Robinhood's own price feed says the stock is worth. Sextant refuses a trade priced more than 3% worse than the feed, so a thin or pushed pool cannot fill your order badly.
| Stock | Robinhood feed | Uniswap pool | Gap |
|---|---|---|---|
NVDA NVIDIA NVDA | $223.20 | $222.77 | -0.19% |
AAPL Apple AAPL | $336.06 | $335.96 | -0.03% |
GOOGL Alphabet GOOGL | $336.67 | $336.63 | -0.01% |
MSFT Microsoft MSFT | $497.31 | $498.75 | +0.29% |
SPY SPDR S&P 500 ETF SPY | $766.70 | $763.31 | -0.44% |
QQQ Invesco QQQ QQQ | $734.00 | $733.06 | -0.13% |
SPCX SpaceX SPCX | $147.19 | $147.37 | +0.12% |
GLD SPDR Gold Trust GLD | $392.18 | $390.98 | -0.30% |
What protects you
Nothing to trust but the chain
Sextant is a page that writes transactions. It has no contract, no account and no key; the only thing it can do is ask your wallet to sign.
All or nothing
A rebalance is one Uniswap router call holding every trade. If any trade would pay less than its minimum, or the transaction lands after its ten-minute deadline, the router reverts and not one token moves.
Tested on live chain state: one of 5 legs asking 1% more than its quote undid all 5; nothing moved
A second opinion on every price
Each trade is held against Robinhood's own price feed for that stock before you are asked to sign. Priced more than 3% worse than a fresh feed, it is refused and named.
Tested: NVDA 5% dearer than a fresh Robinhood price: refused; against a two-day-old price: warned, not refused
Never your other dollars
Buys are sized from what you chose to put in plus the least the sales can return — never from the rest of your wallet. Anything the sales earn above that comes back to you as USDG.
Tested: $500 put in beside $10,000 of idle USDG: the wallet paid $499.58, never more
Your wallet, your tokens
Stocks and dollars go from your wallet to the pool and straight back to your wallet. Sextant never holds them; the only approval you give is to Uniswap's own router.
Every address it uses is on the docs page
FAQ
The short answers
What does Sextant actually do?
It turns "I want 40% NVIDIA, 30% Apple and 30% the S&P 500" into one transaction on Robinhood Chain that buys exactly that through Uniswap — and later, into one transaction that sells what grew past its share and buys what fell behind.
Is there a Sextant contract or token?
No. Every trade goes to Uniswap's SwapRouter02, which was already on Robinhood Chain, written and audited by Uniswap. Prices are checked against Robinhood's own price feeds. There is no Sextant token and nothing to deploy.
Where is my course stored?
In your browser, under your wallet address, and in a link the app gives you. Nothing about it is on chain, so nobody can see it and nobody can change it but you.
What does it cost?
Sextant charges nothing. You pay each Uniswap pool's fee (0.05% on the deepest stock pools, up to 1% on thin ones) and gas on Robinhood Chain, which is cents. The app shows the cost of every trade before you sign.
Why would a trade be refused?
If Uniswap would price it more than 3% worse than Robinhood's feed for that stock while the feed is fresh, or no pool can fill that much. When the stock market is closed the feed stops updating; then the app warns instead of refusing, because the pool may rightly have moved.
Can I lose money?
Yes. You hold real exposure to the stocks you pick, and they can fall. Rebalancing does not protect you from that; it only keeps the split you chose. The interface is not audited. Not investment advice.
Set your course
Connect a wallet on Robinhood Chain and buy a whole portfolio in one transaction. Your stocks stay in your wallet.