In the
Bitstamp sell-off
(t=3.3) each volume-bar is 40 minutes wide, the highest of these (matching
the time-period where the graph is in freefall) is 3.18 million USD, starting at
14 Jan 2015 07:20 hours and expressed by 2819 trades.
The extremities in this interval are (205,155) representing a 25% price
drop, in financial terms exceptional;
the greatest intra-day swing on the US stock market ~20% (black monday).
A closeup matching this period, 14 Jan, 07:20-08:00
shows the event composed of two main declines, the first and
largest of these occurring roughly across Δt = 5 min.
A further closeup across 6 minutes, 07:20-07:26 give more detail of the first drop, starting at t=100 a succession of large orders driving the price downwards.
