Bitcoin Mayer Multiple chart (BTC Mayer Multiple): price divided by its 200-day moving average. Above 2.4 has marked overheated markets, below 0.8 deep-value zones. Updated daily.
Price above the red dashed line = Mayer Multiple over 2.4; below the green = under 0.8. Log scale.
The Bitcoin 200 day moving average is $72,579 as of Oct 19, 2026; BTC closed at $82,541, +13.7% above the average (Mayer Multiple 1.14).
The 200 day moving average (200 DMA) is the most-watched trend line in Bitcoin: price above it is read as a bull trend, below it as a bear trend, and the distance from it — the Mayer Multiple — is what this page tracks. For the slower 200-week line, see the Bitcoin 200-week moving average page.
Mayer Multiple = price / SMA(200)
The Mayer Multiple is the close divided by its 200-day simple moving average. The chart draws price, the 200-day average and two dashed reference levels: 2.4× the average (historically overheated) and 0.8× (historically deep value).
Readings above 2.4 have preceded sharp corrections in every cycle, and the multiple rarely stayed there for more than a few weeks. Readings below 0.8 coincided with the 2015, 2018–19, 2020 and 2022 lows.
1.14 as of Oct 19, 2026 — between the 0.8 and 2.4 reference levels.
Above 2.4 has historically been the overheated zone: price more than 140% above its 200-day average. The multiple exceeded 2.4 at the 2013, 2017 and early-2021 tops and did not hold there for long.
Trace Mayer proposed it in 2017 as a simple way to gauge whether Bitcoin was trading far from its long-term trend. The 200-day average and the 2.4 / 0.8 levels are his original parameters.
Coinfuty computes every series on this page from daily BTC close prices and public constants — the Bitcoin halving schedule, block subsidy and published regression coefficients. Values refresh nightly (00:20 UTC) and the current day is patched hourly. These are historical, backward-looking indicators; nothing here is investment advice.