Honestly, when $UAI jumped 3.98% over the past 15 minutes, my first instinct was to check the trading volume ($37.4 million over 24h).
Why check volume first? I've learned the hard way: a rally on declining volume can easily be a spike, and if you chase it, you can end up stuck at the top.
This move looks fairly healthy, so it's worth watching a little longer.
When you see a rally, what do you usually check first?