Method

For each number on the site: the source, the method, the cadence, and the known weaknesses. Then the live status of every source.

Premium or discount

Source: Two prices. The underlying is Chainlink, where a Chainlink feed for the stock exists on Robinhood Chain. The token price is the mid price of the deepest USDG pool for the token. USDG is a dollar token.
Method: Token price divided by the underlying, minus one. Positive is a premium. Negative is a discount. For SPCX the underlying is Robinhood's own price, because SpaceX is a private company with no public share price. For a stock with no on-chain feed, HIMS today, the underlying comes from the off-chain source below and the row carries a small "underlying from off-chain data" tag.
Cadence: Every 15 minutes. A reading older than 45 minutes is stale and the cell goes blank.
Known weaknesses: Chainlink feeds for stocks can report the last close outside market hours. The deepest pool can change. A thin pool can show a price no one could trade at in size.

Source: Twelve Data, a market data service, through its quote endpoint. Read by this site itself with a key the owner holds.
Method: The latest close for the stock symbol. Outside market hours that is the last trade of the last session, which is the right underlying for a share that is not trading. For a stock with a Chainlink feed this is only a cross-check, shown below. For a stock without one it is the underlying. The two sources are never mixed inside one series.
Cadence: Every 15 minutes. Older than 45 minutes is stale.
Known weaknesses: Free market data can be delayed by up to 15 minutes. If the key is missing or the service is down, tickers that depend on it go blank with that reason.

Source: The stock-token balance of each pair's pool, and the token's total supply, read from Robinhood Chain. For Uniswap v4 pools the balance comes from an external index, Dexscreener, because v4 pools keep no per-pool balance on chain.
Method: The pool's stock-token balance divided by total supply. On the board this is per pair. On a stock page the pairs are stacked.
Cadence: Every hour. Older than 3 hours is stale.
Known weaknesses: The list of pools is kept by hand. A new pool is not counted until it is added. Dexscreener is a third party and can lag or be wrong.

Source: Token transfer events on Robinhood Chain, read from a block explorer's log index.
Method: A mint is a transfer from the zero address. A burn is a transfer to the zero address. The board sums today's amounts, midnight to midnight in New York.
Cadence: Each stock is scanned about every 4 hours. If the feed has not reported within 1.5 times its cadence, the column goes blank, because a zero could mean "no mints" or "we were not looking."
Known weaknesses: Some custodians mint to a treasury address first and release later. That shows as a mint before any token reaches the market.

Source: The pool contract's own quoter.
Method: We ask the pool contract what a trade of this size would do. For "what if," the question is asked for a ladder of trade sizes in the pair's pool, selling the meme token or buying it, and the answer is how many stock tokens would come out and where the price would land. For distance to depeg, the question is asked in the deepest USDG pool: how many dollars of buying would push the token past a 5% premium, and how many dollars of selling would push it to a 5% discount. It is exact for this moment and changes with every trade. The site only renders what the quoter said.
Cadence: Every 15 minutes. Older than 45 minutes is stale.
Known weaknesses: A quote is for one trade in one pool. Real traders route across pools, and other traders move the pool between the quote and the trade.

Method: Fine: within 2% of the underlying. Watch: 2% to 5%, or more than 30% of supply in the pool. Depegged: past 5%. No underlying price: the token has nothing to be compared against. If the premium or discount is blank for another reason, the label is blank with the same reason.

Method: A depeg opens when the premium or discount passes 5% and closes when it comes back inside 2%. We record the peak, which pair held the most supply at open, and how it closed. "Mint" means tokens were minted or burned within 6 hours of the close, and the story names the larger of the two. Otherwise "faded." The list is recomputed from the stored readings every time new data arrives. If readings stop while one is open, it is marked "data gap" at the last reading.
Known weaknesses: A gap that hovers around 5% can open several short depegs. A mint near a close does not prove the mint caused the close.

A green dot means the last successful read is within 1.5 times the expected interval.

The rule: if we can't measure it, the cell is blank.