Hindsight Markets Small-cap stocks on August 4, 2026
XGN on August 4, 2026: why it ran
On August 4, 2026, XGN opened up 22.9% from the previous close of 4.68 and reached 6.83 at 9:33 a.m. ET. The exchange did not halt it.
- Previous close
- 4.68
- Open, 9:30 a.m.
- 5.75
- Gap at the open
- up 22.9%
- Pre-market high
- 5.90 at 9:28 a.m.
- High, 4 a.m. to 4 p.m.
- 6.83 at 9:33 a.m.
- Low, 4 a.m. to 4 p.m.
- 4.70
- After-hours high, 4 p.m. to 8 p.m.
- 7.40 at 6:56 p.m.
- Last trade before 4:00 p.m.
- 6.45
- Volume
- 1.38 million
- Relative volume
- 10.3x
- Float
- 21.97 million shares, from filings as of August 4, 2026
- Shares outstanding
- 24.23 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for XGN published between the previous session's close and the first minute XGN traded 20% above it, at 8:06 a.m. ET, newest first, from the same feeds the replay shows.
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10-Q
-
Exagen Inc. Reports Second Quarter 2026 Financial Results
News via Stock News API
How it traded
Gap, run and fade. It gapped up 22.9% to 5.75 at the open, ran from the open to the high of 6.83 in 3 minutes, then gave back 35% of that move by 4:00 p.m., trading at 6.45.
| Time (ET) | What happened |
|---|---|
| 8:00 a.m. | News (GlobeNewsWire): Exagen Inc. Reports Second Quarter 2026 Financial Results |
| 8:02 a.m. | SEC filing 8-K: 10-Q |
| 8:06 a.m. | First trade 20% above the previous close of 4.68 |
| 9:28 a.m. | Pre-market high, 5.90 |
| 9:30 a.m. | The open: 5.75, up 22.9% from the previous close |
| 9:33 a.m. | High of the day to the close, 6.83 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 6.45, 5.6% below the high |
The shape is a fixed rule, not a judgement: gapped 10% or more at the open, ran 10% or more from the open to the high, and faded if it gave back 30% or more of that move by the close.
The day in numbers
- From news to the move: the first trade 20% above the previous close came 3 minutes after the latest SEC filing before it (8-K, 8:02 a.m.).
- Volume, from the one-minute bars: 85,085 shares before the 9:30 a.m. open (6%), 485,947 in the first 30 minutes (35%), and 811,597 in the rest of the day to 8 p.m. (59%).
- In our recaps, this is the only day XGN met the small-cap rule.
Halts
The exchange's halt feed shows no halts for XGN that day.
On this date the LULD plan ran under Amendment 18, in force from February 24, 2020: no band doubling at the open, and the closing doubling only for Tier 1 stocks and Tier 2 stocks whose previous close was at or below three dollars. See LULD halts or work out a band with the LULD calculator.
Trade this day
Replay XGN on August 4, 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.