Stock Miners Robinhood Chain · the mine is open

The rules

Every number below is read off the contracts, not chosen for this page. Where a number decides how much you are paid, the thing that sets it is named too.

The loop

01

Get a machine

The mint is over: all 3,333 were sold and the 134,413,224 $FUEL they cost is burned. The only way in now is the secondary market.

02

Put it on a floor

Pick a floor and a ticker. The floor decides whether your seam matches, the ticker decides which company you are paid in. Both are yours to choose and the ticker can be changed later.

03

Buy the shifts it works

A machine digs a shift only if you bought that shift for it, paid up front in $FUEL. Buy one, or several ahead so it keeps working while you are asleep. Buying nothing is allowed; the machine just sits out.

04

It digs

Whether the tab is open or not. Everything dug in a shift goes into one pool and the pool is split by how much ore each machine pulled.

05

Claim, in the stock you mined

A machine on HELX is mining NVDA, and NVDA is what lands in your wallet. You can take ETH instead if you prefer; the button for it is on every machine.

Shifts

Four a day, fixed, on the clock and never on yours:

ShiftUTCWhat it is
00 – 06midnight to sixthe night shift, all of it
06 – 12six to noona third of it is night
12 – 18noon to sixno night at all
18 – 24six to midnighta third of it is night

A shift settles when it ends. That is when the pool for it is divided and your claim becomes real.

Traits

Three of them, rolled from a seed committed before the first mint and published after the last. They are the whole game: none of them is strictly better, each is better somewhere.

Habit: when your machine is good

HabitGood whenThenOtherwise
Sleeperat night×1.30×0.80
Contrarythe floor is quiet×1.25×0.75
Socialthe floor is busy×1.25×0.75
Steadyits stock is calm×1.20×0.80

Sleeper is the only one on a clock, so it is the only one you can plan perfectly: play the night blocks and let the noon one idle. The other three depend on what everybody else does, which is the point of them.

A Steady machine on a ticker nobody has read yet is paid ×1.00, not ×0.80. An unknown is not a punishment.

What "calm" actually means

Calm is not a property of the company. It is measured per shift, per ticker: did this ticker move less during that shift than its own median move over the last 28 shifts? A median is even by construction, so no ticker is permanently calm, and picking a famously boring stock buys you nothing. A sleepy ticker has a sleepy median and the bar moves down with it.

What that leaves is a real choice, and it is a choice of when, not of which. These feeds update while the US market is open, which lands in the 12-18 and 18-24 UTC blocks. The 00-06 and 06-12 blocks sit outside it, and over a weekend the feeds do not update at all. The ledger's own record so far says the same thing: in the 00-06 shift six of the eight tickers read calm, in 06-12 four of eight, and in the 12-18 shift, which holds the opening bell, none of them did.

Two honest catches. Everybody can read this page, so a quiet block that everybody crowds into is split more ways, and crowding is exactly what the Contrary and Social habits are paid on. And the reading needs history: until a ticker has eight shifts of moves behind it the keeper says nothing at all, which is why Steady paid a flat ×1.00 for the first eight shifts of the mine.

Appetite: how hard it eats

AppetiteOreFuelOre per fuel
Greedy×1.30×1.450.90
Thrifty×0.85×0.711.20

Greedy digs more and costs more; Thrifty is the efficient one. Which is better is not fixed: it depends on what a shift pays against what fuel costs, and both move.

Seam: which floor suits it

SeamOn a matching floorOn any other
Deep · Surface · Fickle×1.20×0.90

Matching is worth a third more than not, so the floor is a real decision and not decoration. It also fights the crowd: everybody chasing the matching floor makes it busy, which is bad for Contrary machines standing on it.

Merging

Two machines of the same tier press into one of the next. The smaller id survives and keeps its character; the other is burned.

TierOreFuelOre per fuel
I111.00
II2.62.21.18
III6.764.841.40
IV17.57610.6481.65
V45.697623.42561.95

Two tier-I machines dig 2.0 between them and cost 2.0. Merged, they dig 2.6 and cost 2.2: 18% more ore for every token burned, and it compounds each tier. That is the reason to climb, and the cost is that you end up with fewer machines than you started with.

Merging is free. There is no fee to forge a tier, on chain or anywhere else, and there is no date it unlocks: it has worked since the first day.

When a machine can be merged

Only while it is standing still. Buying shifts puts a machine to work immediately, and a working machine cannot be merged, sold or moved until its run is over and claimed. So the two things trade against each other: a machine digging this week is a machine you cannot climb with this week.

The machine that is burned must also owe nothing, which claiming takes care of. If the page offers you a partner, the ledger will accept it; if it does not, that machine is busy.

The reward pool

The pool is funded by the fee on every $FUEL trade, buys and sells alike. A swap pays 6%: a 5% creator fee plus the 1% Pons charges. Pons keeps 0.3% and 5.7% reaches Stock Miners, and a contract cuts that in half the moment it lands: 2.85% of a swap to the reward pool and 2.85% to the treasury, which is what pays for development and marketing. Both addresses were fixed when that contract was deployed, so the money can only land in those two places.

A shift pays out one twenty-eighth of what is left. That is a week of shifts, and it is a rate, not a countdown: the pool falls by 1/28 and the fee tops it back up, so it drains slowly and never empties.

Read this part before you buy anything. A shift's payout is the same size whether one machine works it or a thousand. So when few machines are running, each one earns a great deal, and when many are running, each one earns little. Early is worth more than late here, and by a wide margin, not a small one. That is deliberate and it is also the honest warning: the returns you see in the first days are not the returns the game settles at.

If nobody works a shift at all, nothing is paid and nothing is spent. The money stays in the pool.

Fuel

$FUEL is the only thing you spend. You bond it up front for the shifts you buy, and what the work actually costs is burned when you claim; anything left over comes back to you.

How much a shift burns

The rate is not a fixed number of tokens. It is set each shift so that the fuel burned by everybody together is worth about 15% of what that shift pays out. Working backwards from that one rule explains the rest:

That share is a dial, not a constant. It was 7.6% until 31 August 2026 and is on its way to 15% now. The keeper may not move the price by more than 25% in a single shift, so a change arrives over several shifts and a run that is already paid for is never repriced under its owner in one step. What a shift pays out does not change when the dial does, and a change is announced.

In one shift
The mine pays out100% of that shift's pool
Everyone burns15% of it, in fuel
So miners get backabout 6.7× the fuel it burned

That ratio does not change with how many people are playing. When the mine is busy the same total is split more ways, so each machine burns less and earns less, in step. Your own share of the burn is your machine's weight against the weight of everything working that shift, which is why a Thrifty machine costs less than a Greedy one to run.

This means fuel is not the real cost of playing, the machine is. Fuel is a toll, and the pool it buys into is funded by trading fees rather than by the miners. The flip side is the thing to actually watch: those returns exist because the pool has money in it, and the pool is only as full as the fee flow keeps it.

How many tokens that works out to on the day depends on the fuel price and who else is digging, so no number is printed here that would be stale by the time you read it. The mine shows what the last shift actually charged your machine, read off the chain, next to the box where you buy the next one.

Things worth knowing

A working machine cannot be transferred

The transfer reverts while the run is still going, whether it is a sale, a gift or a marketplace listing. This is so nobody can sell you a machine that is halfway through work you paid nothing for.

Once the run is over, the machine can be sold even if you have not claimed it yet. Claim first. The mine pays the ore and returns the fuel that was left over to whoever owns the machine at the moment it is claimed, so selling it unclaimed hands your money to the buyer.

Nobody can freeze the mine

Shifts are rolled by a keeper, but if the keeper stops, rollStale opens to everybody two hours later. Anyone can push the mine forward. The game does not depend on us being awake.

The pairings are on chain

The tickers are invented names, and each one is tied to a real company and a real price feed. Both mappings are stored publicly in the contract, readable by anyone, and they were written before the mine opened. Somebody was going to work it out; the honest position is that it was never hidden.

Royalty

5% on secondary sales, declared in the contract under the standard every marketplace reads.

What can go wrong