Exchange data from Bybt shows that roughly $46 million worth of long ETH positions were liquidated across the board due to the sudden pullback. Since the flash crash, ETH has also failed to hold above $4,000.
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At each point information from neighbouring data is used. As the time series considered are finite, the areas at the start and end of the data (especially at higher period bands) will not have all the data required. One solution to make computation possible, chosen here, is to pad the time series with zeros where required. However, the zero padding will impact the reliability of the results. It is standard to use a cone of influence to represent this difference in reliability of results. Pale colours represent those areas outside the cone of influence with less reliable results (as seen on Fig 3). Higher period bands require more data for computation resulting in the cone shape.
Recent drops have been caused by a combination of factors, Noble theorizes, from excitement about low-quality coins, to negative remarks from Elon Musk, to China’s recent crackdown on crypto services. The accumulated response made this sell off “all the more violent,” says Noble.