How PRINTER.FUN works

PRINTER.FUN is a prediction market on tokenized stocks. Pick a desk (NVDA, AAPL, SPCX, AMD, GOOGL…), predict which price range it lands in at the closing bell, and stake RH ETH. Get it right and you split the pool with the other winners. Every round's fee market-buys and burns $PRINTER.

A round, start to finish

Desks. Each tradeable Robinhood stock is a “desk.” Each desk runs one live round at a time.
Daily rounds. A round runs 24 hours. Betting is open for the first 23h, then closes 1 hour before the bell, so nobody bets on a price they can already see.
Buckets, not exact prices. You pick a price range, e.g. AAPL $303 – $306. Buckets are centered on the price when the round opened, in 1% steps, with two open-ended tails (far down, far up).
The bell. At close, the desk's price is read on-chain and the winning bucket is the one holding it.
Claim. Winners claim their share. Losing stakes funded the winners.

The price is read straight from the chain

No human reports the price. Each desk publishes an on-chain price feed, the same feed Robinhood's own tokenized-stock system uses. At settle, the contract reads the feed price as of the exact close time, by walking the feed's immutable history. So:

The result is the same no matter when anyone triggers settlement.
Nobody can wait for a number they like, the deciding price is fixed at the bell.
A bettor can't move it: it's an aggregate price, not a pool you can push.
If the feed can't be read honestly at the bell (it went dark, say a market holiday), the round voids and refunds every stake in full.

The oracle can pause the game; it can never rig it. Any doubt refunds, the safe default is always “give everyone their money back.”

Payouts, parimutuel

Everyone's ETH goes into one pool. The winning bucket splits the pool pro-rata to stake, minus a small fee (the rake). Losing buckets get nothing.

Your multiplier is 0.95 × pool ÷ ETH in the winning bucket. Fewer people in the winning bucket → bigger multiplier, because you split everyone else's stake.

Pool	Winning bucket holds	Multiplier	A 1 ETH bet returns
10 ETH	4 ETH (crowded)	×2.375	2.375 ETH
10 ETH	1 ETH (contrarian)	×9.5	9.5 ETH
10 ETH	0 ETH (nobody)	void	full refund

Edge case: if the winning bucket holds more than ~95% of the pool, its multiplier drops below 1, you “win” but the losers didn't cover the rake. Parimutuel only pays when the winning side is outnumbered.

The $PRINTER flywheel, the whole point

Every round takes a small fee on the pool. That fee is split three ways:

Share of the fee	Goes to	What it does
50%	RH Machine pool	buys stocks for the RH Machines, rewards machine holders
25%	$PRINTER buyback	market-buys $PRINTER and burns it, permanent supply cut + buy pressure
25%	Treasury	keeps the protocol running

The more the game is played, the more $PRINTER is bought off the market and burned. Volume is the throttle, and the buys happen on-chain for anyone to watch. That's the engine: a betting game whose activity continuously deflates and bids up $PRINTER.

Fair play, by construction

Bets freeze before the bell, you can never bet on a price you already see.
The deciding price is a decentralized on-chain feed, not a number anyone can move.
A round's terms, fee, buckets, timing, the feed it reads, are frozen when it opens. They can't be changed under a live round.
The house takes only the fee. It never bets, so it never has a side to root for.
Any uncertainty refunds in full.

What is $PRINTER?

$PRINTER is the fixed-supply token this whole machine feeds. PRINTER.FUN's fees continuously market-buy and burn it, so the token's supply only shrinks and its bid grows with how much the game is used.

View $PRINTER on the explorer →