They price the weekend.
We supply it.
New stock tokens can't be created on weekends, so they spike. Offmint sells into the spike in steps above Friday's price and buys back on Monday.
- +8–12%Sat 06:02
- +15–22%Sun 22:10
- +25–35%Sun 22:32
- +40–55%Sun 22:32
- MSTR+166.5%
- QUBT+127.1%
- GLXY+86.5%
- RDDT+72.5%
- LMT+53.5%
- HIMS+47.0%
- DJT+38.5%
- RCAT+28.8%
Largest premium held for 15 minutes, per token, in a mint-off window since July (weekend report). Tickers, not company logos.
HIMS traded +317.6% above its Friday reference on the weekend of 29 Aug, while no new tokens could be created.
How it works, in plain English
On weekends and US holidays nobody can create new stock tokens, so a token can trade far above the real share price. The vault offers some of your tokens for sale only above that real price, then buys them back after Monday's reopen, never paying more than the fresh price plus 1%. The difference is extra tokens for you.
- Step 1Connectyour wallet on Robinhood Chain testnet.
- Step 2Depositstock tokens you already hold. You add no new exposure: you held them anyway.
- Step 3Withdrawany weekday. After a weekend where the token spiked, you can get back more tokens than you put in.
What it would have done, per $1,000 of tokens deposited
| A big spike weekend | +3.8% (HIMS) to +7.1% (GLXY); on 1 of these 3, part of the buyback was still waiting on Monday (valued at the cap) |
| A normal weekend | about 0%: nothing sells (191 of 198 ticker-weekends) |
| The worst weekend we replayed | -0.1% (NU, 2026-09-12), mostly the gas we charge each weekend ($1 per $1,000) |
| Fee | 10% of profit, nothing otherwise |
| Capacity today | about $1,647 per pool can be bought back on Monday within the 1% cap (middle of 5 weekends where the cap was reached; range $0 to $5,198) |
Simulated on real weekend swaps, with our own orders in the pool. Past weekends do not predict the next one. If the price opens higher on Monday, the vault buys back what it can within its cap and retries, so you can end with fewer tokens than you deposited. Unaudited. Testnet only.
Excludes LP fee income, after the fee on profit and gas. Source: web/public/data/supply/replay.json (backtest/src/supply.ts).
MetaVault (deposit dollars instead of tokens) is experimental, coming later: its weekly picker, replayed with only the data it would have had, did not pick HIMS before the 29 Aug spike.
Try the vault on testnetFour things you can do
See the premium, learn from past weekends, place your own sell order, or let the vault do it for you.
- 1. See it
Monitor
- Pool holds at least $10,000
- A $1,000 swap moves it less than 2%
- Traded in the last 6 hours
- Robinhood's quote spread under 1%
- GeckoTerminal agrees within 2%
Every token's pool price against Robinhood's real share price, live. A premium counts as verified only if it passes every check above; the rest are shown with the reason.
Open the monitor - 2. Learn from history
Weekend report
$2,488,112 in the weekend of Sat 29 – Sun 30 AugPaid above the reference on buys priced >5% above it, per mint-off window since 3 Jul. Total $3,615,326 by 23,306 wallets.
Read the report - 3. Act yourself
Sell order
Sell above the real price. How often HIMS got there:- +40%1 of 6 windows
- +20%1 of 6 windows
- +10%1 of 6 windows
Your own wallet, your own Uniswap position; Offmint never holds your tokens. If it fills you hold USDG, not the stock. Testnet only.
Place a sell order - 4. Or let the vault do it
Vault
- GLXY, 2026-09-12+7.1%
- HIMS, 2026-08-29+3.8%
- NU, 2026-09-12-0.1%
A normal weekend: about 0% (nothing sells, 191 of 198 ticker-weekends).
Simulated on real weekend swaps with our orders in the pool, per $1,000 deposited, after the 10% fee on profit. Can end below what you deposited. Unaudited.
Try the vault on testnet
Minting is off 31.2% of the time
New stock tokens can only be created while the real market is open. Robinhood's tokenization window runs Monday 02:00 to Saturday 02:00 (Berlin time) and is closed on US market holidays; outside it, tokens still trade onchain but nobody can mint or redeem them, so nothing pulls the price back to the real share price.
The 10 windows that include a US holiday
| From (UTC) | To (UTC) | Hours | Why |
|---|---|---|---|
| 2026-01-01 01:00 | 2026-01-02 01:00 | 24 | New Year's Day |
| 2026-01-17 01:00 | 2026-01-20 01:00 | 72 | weekend + Martin Luther King Jr. Day |
| 2026-02-14 01:00 | 2026-02-17 01:00 | 72 | weekend + Washington's Birthday |
| 2026-04-03 00:00 | 2026-04-06 00:00 | 72 | weekend + Good Friday |
| 2026-05-23 00:00 | 2026-05-26 00:00 | 72 | weekend + Memorial Day |
| 2026-06-19 00:00 | 2026-06-22 00:00 | 72 | weekend + Juneteenth |
| 2026-07-03 00:00 | 2026-07-06 00:00 | 72 | weekend + Independence Day (observed) |
| 2026-09-05 00:00 | 2026-09-08 00:00 | 72 | weekend + Labor Day |
| 2026-11-26 01:00 | 2026-11-27 01:00 | 24 | Thanksgiving Day |
| 2026-12-25 01:00 | 2026-12-28 01:00 | 72 | weekend + Christmas Day |
Our assumption: A US holiday is mint-off from 02:00 Berlin on the holiday to 02:00 the next day, merged with an adjacent weekend. Weekend windows are 47 h and 49 h on the two daylight-saving weekends, which cancel out. Sources: Minting and burning are not supported outside the tokenization window; Stock Tokens still trade onchain · Tokenization window: Monday 02:00 until Saturday 02:00 CET/CEST, closed on US market holidays · US market holidays. Data: web/public/data/mintoff.json.
The week, as the market sees it
Stock tokens trade 24/7. New ones can only be created while the real market is open: not on weekends or US market holidays.
Minting off. Prices up.
Largest weekend premium over the Friday reference, same scale for every bar.
HIMS
new listing, no Chainlink feed · 29 Aug+317.6%MSTR
has a Chainlink feed · 29 Aug+243.3%GLXY
new listing, no Chainlink feed · 12 Sep+186.1%RKLB
has a Chainlink feed, any weekend+35.8%- Large capsNVDA, TSLA, AAPL, SPY: highest of the four, any weekend+2.6%
- 95th percentile, minting on+0.41%
Two real weekends
A Chainlink feed doesn't make a token immune. In 13 mint-off windows (3 Jul to 26 Sept), a token held more than 10% above its reference for an hour or more 19 times: 16 on tokens without a feed (LMT +53.5% on 5 Sept, for 13.2 h) and 3 on tokens with one (MSTR, RKLB). The largest names (NVDA, TSLA, AAPL, SPY) never went above 2.6%.
Spike counts: our weekend report (every hook-free USDG pool, premium held at least 15 minutes vs the official close). Feed list: Chainlink's reference data directory (35 Robinhood Chain stock feeds).
Bars and charts: our weekend screen, 8 weekends (2026-08-01 to 2026-09-19), every swap on each ticker's deepest hook-free pool. Reference: the Chainlink close where a feed exists, otherwise the pool price at Fri 20:00 UTC.
How it works, with real numbers
Simulated weekend on the real GLXY pool, mainnet fork @ block 71,241,990.
Simulated: contracts/test/Fork.t.sol test_fork_fullCycle_squeezeLockBuyback: simulated +70% weekend spike, Monday reopen at +1%, on the real pool, block 71241990. Per step: $210.54 / $272.32 / $248.92 / $225.65. Real fills would be lower: our own orders shrink the spike they sell into.
What the bot can and cannot do
- Place the sell ladder when minting closes
- Settle after the market reopens with a fresh price
- Run the weekly pick for MetaVault
- Withdraw your funds, or send them anywhere
- Sell below Friday's price plus the step threshold
- Buy back above the price cap
- Pick a blacklisted ticker
- Change its own limits
It's a rules-based bot, not AI. If it stops, anyone can arm or settle after a grace period.
Live now
Open live monitorVerified live premiums only: every row passed the quality checks below.
| Ticker | Token price | Reference | Premium | $ to move +10% | Session |
|---|---|---|---|---|---|
| Loading… | |||||
Live. Token price: the deepest hook-free Uniswap v4 pool, read onchain. Reference: Robinhood's Stock Token API quote (multiplier-adjusted).Verified = pool TVL ≥ $10,000, a $1,000 swap moves it < 2%, a swap in the last 6 h, quote spread ≤ 1% and not halted, and GeckoTerminal agrees within 2%. Refreshed every 60 s.
On buys priced >5% above the reference, 13 windows since 3 Jul.
Distinct wallets that made those 121,925 buys.
Of 2026: weekends plus US market holidays, 2,736 hours.
Straight answers.
Including the awkward ones.
Can I lose money?
Yes. If the price opens higher on Monday, the vault buys back only what it can within its 1% cap and retries, so you can end with fewer tokens than you deposited. The worst weekend we replayed was -0.1%, mostly gas. Unaudited, testnet only. It is not risk-free.
Isn't this just a Uniswap limit order?
Mechanically, yes: a one-sided range above the price is a limit order. What Offmint adds is where to put it (anchored to the verified reference, never to a pool that is already spiking), when (only while minting is off), and a capped buyback after Monday's reopen. The sell order page lets you place one yourself.
Does it calm the spike?
Not at today's size. Our replays show it can trim a thin pool's peak, but the buyback on Monday is limited by pool depth, so capacity is small. We say so rather than claim we fix the market.
What if Robinhood trades stocks on weekends?
It confirms the demand. On 29 Sep 2026 Robinhood announced 24/7 trading, weekends included, for a curated list of US stocks and ETFs in its app, pending regulatory review and planned for early next year (Robinhood newsroom). It isn't live yet, it starts with a curated list, and the announcement doesn't mention Stock Tokens: new tokens can still only be minted inside the tokenization window. Thin new listings, where the spikes we measured happened, may stay outside that list. Where a live weekend price does exist, the ladder can anchor to it instead of Friday's close, so it sells only into scarcity, not into news.
Why is capacity so small?
On Monday the vault must buy back within 1% of the fresh price. In our replays that absorbed about $1,647 per pool (middle of 5 capped weekends). Deeper pools or other buyback routes would raise it.
Is the bot an AI?
No. The keeper is a rules-based bot: threshold checks against a price reference. It cannot withdraw your funds or change its limits, and if it stops, anyone can arm or settle after a grace period.
What about MetaVault?
Experimental, coming later. Replayed with only the data it would have had, its weekly picker did not pick HIMS before the 29 Aug spike.
Verify it yourself
Every contract is source-verified on the Robinhood Chain testnet explorer.
Read buyIn, commit, unwind and isBlacklisted: every limit is a bounded parameter.
Read arm, lock and settle: the ladder floor and the buyback cap are checked onchain.
Same code; restrictedDepositor lets only MetaVault deposit.
Deploys both instances per stock from hash-pinned vault code.
Chainlink adapter over the testnet mock feed. The PushPriceReference for no-feed listings is proven in the mainnet-fork tests.
1,000 test USDG + 10 mHIMS per wallet per 24 h.