Subject: File No. SR-CboeBZX-2019-004
From: John Bird
Affiliation:

May. 18, 2019

Dear Commisoners, 

I would like to highlight that Bitcoin is not immune to manipulation either by a group, individual or software.   

As recent as this Friday a Single order of 5000 Bitcoin placed on a single exchange dropped the price of Bicoin by over $1,000 in minutes.  

To quote Yahoo Finance:  

"A single large bitcoin (BTC-USD) sale crashed the price of the cryptocurrency by over 10% on Friday. 

Bitcoin fell from around $7,726 to $6,777 at around 4am ET (8am GMT). By 9.50am ET, the price had recovered slightly to trade around $7,155 but remains down about 9%." 

"The crash appears to have been caused by a large sell order on Bitstamp, a leading European cryptocurrency exchange." 

"eToro said the sell order appears to have been around 5,000 bitcoin, which would have been worth around $38.6m at the time the order was placed." 

Article source:  

"A 'whale' selling bitcoin crashed the price by $1,000" 

https://finance.yahoo.com/news/why-bitcoin-price-crashed-friday-may-17-bitstamp-whale-141622639.html                                                               


A further article on this very same news commented that:  


"....this drop is a stark reminder that cryptoassets still operate in a nascent market, which is susceptible to significant price moves by whales (large holders of cryptocurrency)." 


Article source: "BITCOIN PRICE ROLLERCOASTER CONTINUES AS VALUE PLUNGES BY $1,000 IN LESS THAN AN HOUR" 

https://www.independent.co.uk/life-style/gadgets-and-tech/news/bitcoin-price-crash-latest-usd-crypto-market-analysis-today-a8918641.html 

So as you can see if a single entity can move the price of Bitcoin in such a fashion on all exchanges (including the 10 listed in the Bitwise ETF proposal) then the argument that Bitcoin is uniquiely resistant to manipulation is incorrect.  

Furthermore it demonstrates that is a poor store of value with the volatility it has demonstrated- with its recent meteoric rise and this recent demonstration of what power a single user can wield. It is not mature enough for the SEC to even consider it giving it an ETP status. 

I am against this whole proposal for obvious reasons. 

Thanks for your time.  

Kind Regards, 

John