Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model

We develop a strong diagnostic for bubbles and crashes in Bitcoin, by analysing the coincidence (and its absence) of fundamental and technical indicators. Using a generalized Metcalfe’s Law based on network properties, a fundamental value is quantified and shown to be heavily exceeded, on at least f...

Full description

Bibliographic Details
Main Authors: Spencer Wheatley, Didier Sornette, Tobias Huber, Max Reppen, Robert N. Gantner
Format: Article
Language:English
Published: The Royal Society 2019-06-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180538
_version_ 1818383833197707264
author Spencer Wheatley
Didier Sornette
Tobias Huber
Max Reppen
Robert N. Gantner
author_facet Spencer Wheatley
Didier Sornette
Tobias Huber
Max Reppen
Robert N. Gantner
author_sort Spencer Wheatley
collection DOAJ
description We develop a strong diagnostic for bubbles and crashes in Bitcoin, by analysing the coincidence (and its absence) of fundamental and technical indicators. Using a generalized Metcalfe’s Law based on network properties, a fundamental value is quantified and shown to be heavily exceeded, on at least four occasions, by bubbles that grow and burst. In these bubbles, we detect a universal super-exponential unsustainable growth. We model this universal pattern with the Log-Periodic Power Law Singularity (LPPLS) model, which parsimoniously captures diverse positive feedback phenomena, such as herding and imitation. The LPPLS model is shown to provide an ex ante warning of market instabilities, quantifying a high crash hazard and probabilistic bracket of the crash time consistent with the actual corrections; although, as always, the precise time and trigger (which straw breaks the camel’s back) is exogenous and unpredictable. Looking forward, our analysis identifies a substantial but not unprecedented overvaluation in the price of Bitcoin, suggesting many months of volatile sideways Bitcoin prices ahead (from the time of writing, March 2018).
first_indexed 2024-12-14T03:12:39Z
format Article
id doaj.art-06488f79caad4d42a738a45cd0910759
institution Directory Open Access Journal
issn 2054-5703
language English
last_indexed 2024-12-14T03:12:39Z
publishDate 2019-06-01
publisher The Royal Society
record_format Article
series Royal Society Open Science
spelling doaj.art-06488f79caad4d42a738a45cd09107592022-12-21T23:19:13ZengThe Royal SocietyRoyal Society Open Science2054-57032019-06-016610.1098/rsos.180538180538Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity modelSpencer WheatleyDidier SornetteTobias HuberMax ReppenRobert N. GantnerWe develop a strong diagnostic for bubbles and crashes in Bitcoin, by analysing the coincidence (and its absence) of fundamental and technical indicators. Using a generalized Metcalfe’s Law based on network properties, a fundamental value is quantified and shown to be heavily exceeded, on at least four occasions, by bubbles that grow and burst. In these bubbles, we detect a universal super-exponential unsustainable growth. We model this universal pattern with the Log-Periodic Power Law Singularity (LPPLS) model, which parsimoniously captures diverse positive feedback phenomena, such as herding and imitation. The LPPLS model is shown to provide an ex ante warning of market instabilities, quantifying a high crash hazard and probabilistic bracket of the crash time consistent with the actual corrections; although, as always, the precise time and trigger (which straw breaks the camel’s back) is exogenous and unpredictable. Looking forward, our analysis identifies a substantial but not unprecedented overvaluation in the price of Bitcoin, suggesting many months of volatile sideways Bitcoin prices ahead (from the time of writing, March 2018).https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180538bitcoinbubblepredictionmetcalfe’s lawlog-periodic power law singularity
spellingShingle Spencer Wheatley
Didier Sornette
Tobias Huber
Max Reppen
Robert N. Gantner
Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
Royal Society Open Science
bitcoin
bubble
prediction
metcalfe’s law
log-periodic power law singularity
title Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
title_full Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
title_fullStr Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
title_full_unstemmed Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
title_short Are Bitcoin bubbles predictable? Combining a generalized Metcalfe’s Law and the Log-Periodic Power Law Singularity model
title_sort are bitcoin bubbles predictable combining a generalized metcalfe s law and the log periodic power law singularity model
topic bitcoin
bubble
prediction
metcalfe’s law
log-periodic power law singularity
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180538
work_keys_str_mv AT spencerwheatley arebitcoinbubblespredictablecombiningageneralizedmetcalfeslawandthelogperiodicpowerlawsingularitymodel
AT didiersornette arebitcoinbubblespredictablecombiningageneralizedmetcalfeslawandthelogperiodicpowerlawsingularitymodel
AT tobiashuber arebitcoinbubblespredictablecombiningageneralizedmetcalfeslawandthelogperiodicpowerlawsingularitymodel
AT maxreppen arebitcoinbubblespredictablecombiningageneralizedmetcalfeslawandthelogperiodicpowerlawsingularitymodel
AT robertngantner arebitcoinbubblespredictablecombiningageneralizedmetcalfeslawandthelogperiodicpowerlawsingularitymodel