Tools
Cycle tools for long-term holders
Everything here is free, server-rendered and works without an account or a JavaScript framework. Each tool ships with a plain-English explainer in Learn and, where it feeds the index, a section in the methodology.
The flagship composite: how hot bitcoin and ether are against their own last four years, on a 0–100 scale.
53.6 — Neutral
The current reading, every component and up to ten years of history as JSON from GET /api/index. No key, CORS open, attribution required.
What a fixed weekly or monthly buy into bitcoin or ether would have been worth, next to a single lump sum on the same start date. Runs on real daily closes back to 2011 for bitcoin.
What every start date in our history returned after one, two and four years of holding — the whole spread, not an average, plus how many of them ended below where they began.
BTC +1,133% median over 4 years
What the same $100 became in bitcoin, ether, the stock market with dividends reinvested and gold — next to the drawdown each of them cost you along the way.
$100 → $12,847 in BTC vs $423 in the S&P, 10 years
Blocks to the next bitcoin halving, next to how price behaved around the two our own daily history covers — May 2020 and April 2024.
82,851 blocks left
Price divided by its 200-day average — the classic stretch measure, with its full historical distribution.
BTC 1.114 · ETH 1.218 ratio
Bitcoin’s slowest widely-watched baseline and how far above or below it price is sitting today.
BTC 19.4% · ETH 0%
The sentiment index with the daily noise averaged out, read the contrarian way that suits holders.
63 points
How many people are actually reading about bitcoin and ether — daily Wikipedia readers since 2015, ranked against eleven years of their own history and put next to price.
BTC 2nd percentile of attention
A lightweight gauge for your site and a dynamic SVG badge for a README — an iframe and one image tag. Free for commercial use, one visible link is the whole price.
All 53 terms used on this site — Mayer Multiple, funding rate, drawdown, sats, self-custody — in one or two plain sentences each.
Want one of these sooner?
The order is deliberate but not fixed. If a tool would be genuinely useful to you, say so — the contact address is on the about page. Requests from people who actually hold through cycles move things up the list faster than anything else.