Methodology

All price data comes from CoinGecko (a single provider, on the free Demo tier). Using one consistent source avoids discrepancies that arise from blending multiple exchange feeds.

The band is two weekly moving averages of the weekly closing price:

• 20-week SMA = the average of the last 20 weekly closes (each week weighted equally).
• 21-week EMA = an exponential moving average over 21 weeks, weighting recent weeks more heavily.

The band range is the zone between these two lines. Price is classified as above, inside, or below the band by comparing the latest price to the lower and upper edges.

Moving averages are computed on weekly candles using each week’s close. Roughly a year of history (about 52–53 weekly closes) is stored per asset so the 21-week EMA is stable. Weeks are derived consistently from CoinGecko’s daily data; because different platforms start the week on different days/timezones, band values can differ slightly between sites.

The most recent (in-progress) week uses the latest available price as its provisional close, so the band reflects current conditions. That latest value updates as new prices arrive and finalizes when the week closes.

The dashboard covers the top ~100 cryptocurrencies by market cap(roughly 150–200 assets are tracked so the top 100 stays populated after exclusions). Rankings refresh on a daily schedule.

The BMSB is not meaningful for assets designed to hold a steady value, so stablecoins and real-world-asset (RWA) tokens (e.g. tokenized treasuries) are excluded from the band analysis and grouped separately. Wrapped, derivative, and duplicate tokens (for example, redundant tokenized-gold listings) are also filtered out.

An asset needs enough weekly history (around 21 weeks) to produce a stable 20-week SMA and 21-week EMA. Assets without sufficient data, or without a completed BMSB calculation, are excluded from the ranked list rather than shown with incomplete values.

• Current prices refresh approximately every 15 minutes.
• BMSB calculations refresh hourly.
• Asset discovery and rankings refresh daily; broader maintenance runs weekly.

These values are provided for informational and educational purposes only. The Bull Market Support Band is a trend-context indicator, not a guaranteed signal, and nothing here is financial advice.