$Lion-OCBC Sec HSTECH S$ (HST.SG)$ These seem to be support/...

$Lion-OCBC Sec HSTECH S$ (HST.SG)$ These seem to be support/resistance lines. But when the price reaches them, it will fluctuate every second, causing confusion as to the support or selling pressure. In fact, they have never been traded. Can it be like this?