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.
Coinbase falls 11% after the crypto exchange misses Wall Street's 3rd-quarter earnings expectations

The SHIB/USDT pair formed a Doji candlestick pattern on Nov. 9 that resolved to the downside on Nov. 10. If bears sustain the price below the 20-day EMA ($0.000053), the pair could drop to the 78.6% Fibonacci retracement level at $0.000040 and then to the 50-day SMA ($0.000033).
It can in addition be observed from Fig 7 that as the period band considered increases, the overall (bubble and non-bubble) coherence values generally get stronger, suggesting online factors have a medium to long term link with price.