Il y a aussi 50% des futures CME qui expirent demain.
The upcoming CME futures expiration set for Friday is expected to have a significant effect on the next bitcoin price action as the biggest cryptocurrency threatens to plunge below the $10,000 mark.
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According to a Tuesday post by the Skew Twitter account, the CME futures deadline will see almost 50% of open interest expire. According to past evidence, futures expiration sparks Bitcoin volatility. However, different events in Bitcoin’s history have behaved differently. Skew believes that the current investor appetites are more bearish.
https://www.coinspeaker.com/bitcoin-price-10k-cme-futures/Trustnodes affirme observer le même phenomène tous les mois depuis Avril inclus, à tel point qu'ils disent pouvoir faire quasiment un copier/coller de leur article du mois précédent(ils donnent d'ailleurs les liens)
It’s the last Friday of the month. That means futures expire tomorrow and like clockwork bitcoin fell about 10% before recovering slightly to $9,400.
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These bets never touch actual bitcoin, but they are based on bitcoin’s price as aggregated by CME on at least four exchanges: Bitstamp, Coinbase, itBit and Kraken.
“Each day, the BRR aggregates the trade flow of major bitcoin spot exchanges during a specific one-hour calculation window. This one-hour window is then partitioned into 12, five-minute intervals, where the BRR is calculated as the equally-weighted average of the volume-weighted medians of all 12 partitions,” they say .
https://www.cmegroup.com/education/courses/introduction-to-bitcoin/introduction-to-bitcoin-reference-rate.htmlSuch partitioning is done to prevent spot price manipulation, but the use of this specific one hour period is interesting because all you need to do to circumvent it is to manipulate the price the day before.
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The above is word for word from an article we wrote
in April. In
May too it hardly needed any change, or in
June , or in
July.
For months on and it still applies, with it unlikely to be a coincidence as it is now a bit far too predictable.
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Now though at least we have a complete article which we can just copy and paste next month.
https://www.trustnodes.com/2019/08/29/wall-street-sells-bitcoin-on-futures-expiry