Hindsight Markets Recaps Small-cap stocks on October 16, 2026
GUTS, October 16: an 8-K and a pre-market spike to $4.84
GUTS spiked to $4.84 before the open after an 8-K, then gave much of it back in the session.
News via Stock News API
What happened
Before the open
The news came first: an 8-K at 7:01 a.m. Before the bell it reached $4.84, on 3.7M shares.
The open
It opened down 49%, at $2.14.
The close
It closed at $1.56, 68% under its high.
What to take from it: The move happened before the bell. The regular session never got back to the pre-market high.
The details
How it traded, step by step
Pre-market spike. Before the open it spiked 16.3% from $4.16 to $4.84 at 7:19 a.m.. It opened down 48.6% at $2.14 and traded at $1.56 at 4:00 p.m.
| Time (ET) | What happened |
|---|---|
| 7:00 a.m. | News (GlobeNewsWire): Fractyl Health's Revita Meets Six-Month Co-Primary Endpoint in Ongoing REMAIN-1 Pivotal Study, With Highly Statistically Significant Reduction in Weight Regain After GLP-1 Discontinuation |
| 7:01 a.m. | SEC filing 8-K: 8-K |
| 7:19 a.m. | Pre-market high, $4.84 |
| 7:19 a.m. | High of the day to the close, $4.84 |
| 9:30 a.m. | The open: $2.14, down 48.6% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $1.56, 67.8% below the high |
The shape's name comes from a fixed rule, not a judgement (how shapes are named). Halts are in the halt table below.
The day in numbers
- Previous close
- $4.16
- Open, 9:30 a.m.
- $2.14
- Gap at the open
- −48.6%
- Pre-market high
- $4.84 at 7:19 a.m.
- High, 4 a.m. to 4 p.m.
- $4.84 at 7:19 a.m.
- Low, 4 a.m. to 4 p.m.
- $1.54
- Close, 4 p.m.
- $1.56
- Change at 4 p.m.
- −62.5%
- After-hours high, 4 p.m. to 8 p.m.
- $1.61 at 4:02 p.m.
- Volume, 4 a.m. to 4 p.m.
- 5.41 million
- Volume after hours, 4 p.m. to 8 p.m.
- 204,029
- Relative volume by 8 p.m.
- 67.0×
- Float
- 12.38 million shares, from filings as of October 16, 2026
- Shares outstanding
- 13.26 million
- Volume, from the one-minute bars: 3.65 million shares before the 9:30 a.m. open (65%), 255,971 in the first 30 minutes (5%), and 1.71 million in the rest of the day to 8 p.m. (30%).
- In our recaps, this is the only day GUTS met the small-cap rule.
On the day's lists: the intraday runners. It is here because it was in play on the intraday runners: up 30% or more on $3 million or more really traded, outside the small-cap rule's price, relative volume or float, its high reached $1 or more and it started the day at $20 or under (the rule every page uses).
Halts (none)
The exchange's halt feed shows no halts for GUTS that day.
Halt bands that day: the LULD plan's Amendment 18 rules (what that means, LULD calculator).
How we read the data, name a day's shape and pick the stocks: methodology.
Trade this day
Replay GUTS on October 16, 2026 in Hindsight Markets: the real tape, the order book and the halts, on a clock you control, and see where your orders would have filled.