XRTX, October 8: news and an after-hours run to $2.46

After-hours run. It opened down 0.9% at $1.73 and traded at $1.78 at the 4:00 p.m. close, then ran 37.8% from $1.78 to $2.46 at 4:22 p.m. after the close, on 5.36 million shares traded after hours.

The shape's name comes from a fixed rule, not a judgement (how shapes are named). Halts are in the halt table below.

Previous close

$1.75

Open, 9:30 a.m.

$1.73

Gap at the open

−0.9%

Pre-market high

$1.75 at 4:53 a.m.

High, 4 a.m. to 4 p.m.

$1.83 at 3:53 p.m.

Low, 4 a.m. to 4 p.m.

$1.71

Close, 4 p.m.

$1.78

Change at 4 p.m.

+2.3%

After-hours high, 4 p.m. to 8 p.m.

$2.46 at 4:22 p.m.

Volume, 4 a.m. to 4 p.m.

6,718

Volume after hours, 4 p.m. to 8 p.m.

5.36 million

Relative volume by 8 p.m.

17.4×

Float

1.77 million shares, from filings as of October 8, 2026

Shares outstanding

1.82 million

• From news to the move: the first trade 20% above the previous close came 3 minutes after the latest news item before it (GlobeNewsWire, 4:00 p.m.).
• Volume, from the one-minute bars: 20 shares before the 9:30 a.m. open (0%), 111 in the first 30 minutes (0%), and 5.37 million in the rest of the day to 8 p.m. (100%).
• Float rotation, the volume since 4 a.m. against the float of 1.77 million shares: past it once at 4:15 p.m., twice at 4:39 p.m., three times at 7:43 p.m.
• Other days XRTX met the small-cap rule in our recaps: 5, the latest on October 9, 2026.
• The next session, October 9, 2026, it gapped up 13.9% at 9:30 a.m.

On the day's lists: the intraday runners, after-hours movers. It is here because it met the small-cap rule on the intraday runners: price $2 to $20, up 10% or more, relative volume 5× or more, float under 20 million shares, its high reached $1 or more and it started the day at $20 or under (the rule every page uses).

The exchange's halt feed shows no halts for XRTX that day.

Halt bands that day: the LULD plan's Amendment 18 rules (what that means, LULD calculator).