The formula and the economics behind it
Miners are paid in two ways: the block subsidy (newly issued bitcoin) and transaction fees, both denominated in BTC but worth whatever the market price happens to be that day. Puell Multiple asks: is today's miner revenue, in dollar terms, unusually high or low compared to its own trailing year?
Since revenue = (block subsidy + fees) × price, a Puell Multiple spike can come from price rising sharply, fees spiking, or both. That matters because miners have real operating costs (electricity, hardware, hosting) paid mostly in fiat — when revenue is unusually elevated relative to their own recent average, miners tend to have more room to sell coins into strength without threatening their operating margins, and vice versa when revenue craters.
How this site computes it from free data
Coin Metrics' paid tier offers a direct RevUSD field, but that field isn't available on the free community API this site relies on. The workaround, verified against real historical data: miner revenue in USD is reconstructed as IssTotUSD + FeeTotNtv × PriceUSD — total issuance value in USD, plus native-unit fees converted to USD at that day's price. This reproduces the same real-world quantity (roughly $42 million/day in early 2024, matching public figures at the time) without needing a paid field.
What the extremes have meant
Readings above roughly 4 (miners earning about four times their trailing year's average) have clustered near cycle tops, when price — the dominant driver of revenue, since issuance itself only changes at halvings — has been most stretched. Readings below roughly 0.5 have clustered near cycle bottoms, when miner economics were most stressed. Both bands describe a pattern across three or four cycles — nothing close to a mechanistic trigger.
The Puell Multiple chart shows today's actual reading, updated live from real issuance and fee data.