I posted a chart which shows how the stop hunt was carried out. The largest block was 15,400, before that some gaps down on 100 and 200 share lots. Then the stops hit at 1.50. All the volume was 1.50 and below. 1.50 being a logical round number target for stops.

The 'lucky' ones were filled within a couple pennies, possibly stop limit orders. The unlucky stop markets were filled on a gap down to the 1.42 area.

Then the chart gapped back up, then some retail fear selling, then gapped up again to close up a penny.

Classic bear raid by the MMs.  Beware stop orders, beware round numbers. This is the OTC.