What the scanner showed
AIOK gapped +10.1% from its previous close of $4.25 to its first trade, $4.68 at 08:55:58 ET. Traderly's Gap screen listed it at 09:58:01 ET at $5.92, up 26.5% from its open with RVOL 12.5× on 102K shares. It was the first of 5 stocks the screen listed at that minute.
Traderly's market data is delayed 15 minutes, so a live user saw that listing from about 10:13 ET, still showing the 09:58 ET price. Replay shows it at 09:58:01 ET itself.
What it did next
Its low after the listing came within the same minute: $5.50 at 09:58:31 ET, −7.1% from its listing. Holding from the listing meant sitting through that dip first; it never traded lower for the rest of the session. By 10:13 ET, when the delayed view showed the listing, it was back above its listing price.
Then it ran. AIOK peaked at $15.59 at 12:06:40 ET, +233.1% from its open and +163.3% from its listing. It closed the regular session at $12.06 at 16:00 ET, +157.7% from its open and +103.7% from its listing: well below its high, still far above its listing. After hours it slid to $9.82 at 20:00 ET, +109.8% from its open.
How to read a gap like this
The gap was there from the first trade, if only just: the Gap screen asks for a gap above 10%, and AIOK's was +10.1%. What it waited on was volume. It traded only a handful of small lots in the premarket, so its listing came after the 09:30 ET open, once the volume arrived all at once in the minutes around 09:56 ET. At 09:56:57 ET, when the Default screen listed it at $5.60, it had traded 50K shares with RVOL 6.3×: enough for that screen, short of the Gap screen's volume filter. The Gap screen showed it at 09:58:01 ET, once it had traded 102K shares.
An RVOL of 12.5× says how heavily a stock trades against its usual volume, not where its price goes next: AIOK's low after the listing came first, and its high about two hours later. The premarket gap scanner settings guide covers each of the Gap screen's filters, and the relative volume guide explains what RVOL measures.