Methodology and Data Sources
Where each number on this site comes from, how often it is refreshed and how the few figures calculated here are worked out.
Data sources and refresh times
| Data | Source | Refresh | Last successful update |
|---|---|---|---|
| Coin prices (top 250) | CoinGecko /coins/markets | every 3 min | 2 min ago |
| Global market totals | CoinGecko /global | every 5 min | just now |
| Fear and Greed Index | Alternative.me | every 1 h | 41 min ago |
| Funding rates and open interest | Binance, Bybit, OKX, Bitget, Hyperliquid | every 5 min | just now |
| Bitcoin network | mempool.space (Blockstream as fallback) | every 10 min | 4 min ago |
| Ethereum gas | Public Ethereum RPC (eth_feeHistory) | every 2 min | just now |
| DeFi TVL by chain | DefiLlama | every 30 min | just now |
| Stablecoin supply | DefiLlama stablecoins | every 1 h | 42 min ago |
| Options market | Deribit public API | every 15 min | just now |
| News headlines | Publisher RSS and Atom feeds | every 5 min | just now |
| Trending coins | CoinGecko /search/trending | every 15 min | just now |
| Coin links and price history | CoinGecko /coins/{id} and /market_chart | one coin per minute | 1 min ago |
| Coin categories | CoinGecko /coins/categories | every 1 h | 36 min ago |
| Coin prices (rank 251 to 500) | CoinGecko /coins/markets | every 30 min | 14 min ago |
| Exchanges | CoinGecko /exchanges | every 6 h | 42 min ago |
| Binance trading pairs | Binance spot API | daily | 12 h ago |
| Market summary and Pulse score | Calculated from stored data | every 5 min | 1 min ago |
Market Pulse score
The Market Pulse is a summary of five conditions. Each one is turned into a score from 0 to 100. The final score is their plain average. If a factor has no data, it is left out and the rest are averaged.
- Bitcoin trend: starts at 50. Bitcoin's distance from its 50 day average, times 250, is added (capped at plus or minus 25). Its distance from its 200 day average, times 125, is added too (also capped at 25). So a price 10% above the 50 day average adds 25 points.
- Market breadth: the share of the 100 largest coins (without stablecoins and wrapped tokens) that are up over 7 days.
- Sentiment: the Fear and Greed Index value as published.
- Leverage: starts at 50 when the average Bitcoin and Ether funding rate is 0.01% per 8 hours, the usual resting level. Every 0.01% above that removes 15 points; every 0.01% below adds 15. Crowded long positions lower the score.
- Stablecoin liquidity: 50 plus ten times the 30 day percentage change in dollar stablecoin supply.
Labels: below 35 is weak, 35 to 44 soft, 45 to 55 neutral, 56 to 65 firm and above 65 strong. The score describes current conditions. It has not been tested as a trading signal and should not be used as one.
Altcoin season reading
The share of the 50 largest altcoins that did better than Bitcoin over the last 30 days, from 0 to 100. Stablecoins and wrapped tokens are not counted. The best-known version of this index uses 90 days; this site uses 30 days because that is the longest change the free price data includes for every coin. A reading of 75 or more is commonly called altcoin season.
Funding rates
Each exchange's current funding rate is converted to an 8 hour rate, so an exchange that charges every hour is multiplied by 8 and one that charges every 4 hours by 2. The weighted figure averages the exchanges in proportion to each one's open interest for that coin. Annualised figures multiply the 8 hour rate by 3 times 365; real funding changes all the time, so treat them as a way to compare, not as a return.
Open interest is the dollar value of open USDT perpetual contracts. Binance values are calculated from contract count and mark price. Coins are matched by ticker, and tickers like 1000PEPE are mapped to their coin.
History charts
Some sources only publish the current value. For those (total market cap, volume, open interest, funding, gas and Bitcoin fees), this site stores its own reading at each refresh. Those charts therefore start on the day the site was installed. Fear and Greed, DeFi TVL, stablecoin supply, DVOL, hashrate and coin prices come with their own history.
Written market summary
The summary at the top of the dashboard is put together from fixed sentence templates and the stored numbers every 5 minutes. No text is invented: if a number is missing, its sentence is skipped.
Accuracy
Free data sources can be late, wrong or briefly unavailable, and different sources can disagree. Nothing on this site should be the only basis for a financial decision. See the disclaimer.