MTL/BTC Metal What do you make of these repeated volume spikes?

Incremental Metal volumes spikes
4/6 @ 9:00 MST
4/7 @ 18:00 MST
4/8 @ 20:00 MST
4/10 @ 6:00 MST
4/11 @ 10:00 MST
4/12 @ 11:00 MST
4/13 @ 11:00 MST