A truth that's not exactly funny: $AGT has fallen below the 0.07 level.
On a candlestick chart, a level is just an ordinary number, but to us, it's a big deal.
For a bit of serious explanation: there are often a lot of stop-loss orders clustered around key levels. Once the price crosses one, those stops can all be triggered at once, causing volatility to spike suddenly.
The same reading can mean very different things in different market conditions, so don't apply any single rule blindly.