100 shares in a $128 trade is not tea leaves! I would call it the reason that people who don't know what they're doing should not trade after hours, when there is a huge bid-ask spread, and in this case no news.
I think you're missing my point gwconcord. I don't think anyone is stupid enough to trade 100 shares of PSUN after-hours given the bid-ask spread. Think about it, 100 shares is worth ~$150. That trade by itself doesn't make sense even during trading hours, because a normal trading commission would be 5-10% of the trade amount. So the trade doesn't make sense as a standalone during trading hours, and it CERTAINLY doesn't make any sense in after hours. It's beyond stupid for a human trader, and also for an automated trade. So where do such trades come from?
Everything you said is correct, which is why it's meaningless to analyze.
But for fun, if I had to guess, someone had 100 shares back when they were worth more - for fun let's say $20 a share, and they finally decided to take the loss. And maybe they live on the West Coast, so they put in an after hours trade.
Or someone with 100 free trades and nothing to do put an order in for fun.