Hindsight Markets Beta

Recaps · October 8, 2026

BIAF, October 8: the $8.00 wall, one halt, and $9.37

Float
1.16 million shares
Volume
12.35 million shares
Previous close
$6.16
Open
$6.38 (up 3.6%)
High
$9.37 at 10:08 a.m.
Halts
1 (12:07 p.m.)
Close
$5.65
9.376.165.454 a.m.9:30noon4 p.m.8 p.m.
BIAF on October 8, 2026, one-minute bars in New York time. Shaded: before the 9:30 a.m. open and after the 4:00 p.m. close. Bands: halts.

The day before

On October 7, BIAF was quiet. It traded between $5.87 and $6.29 on 42,407 shares and closed at $6.16. That is a tiny float (1.16 million shares) on very low volume.

Pre-market: the headline at 8:00

The first trades on the 8th were at $6.06 at 4:42 a.m., below the $6.16 close. For more than three hours it barely traded.

At 8:00 a.m. this headline came out: “bioAffinity Technologies Announces Notification of Japanese Patent Allowance Covering Noninvasive CyPath® Lung and AI-Built Algorithm”. The 8:00 bar opened at $6.15.

It ran to $7.65 at 8:06 a.m. Then it kept going: $8.20 at 8:10 a.m. By 8:14 a.m., more shares had traded than exist in the whole float (1.16 million).

The pre-market high was $8.34 at 8:14 a.m. It reversed hard. By 8:18 a.m. it was at $6.50, down 22% from the high. At 8:30 a.m. the company filed an 8-K (a current report). From 8:30 until the open the price drifted between about $6.16 and $6.98. 2.41 million shares traded before the bell, about twice the float.

The wall at $8.00

It opened at $6.38, up 4% from the previous close. By 9:44 it was at $7.54, up 18% from the open. It pulled back to $6.82 at 9:50 and then turned up again.

At 9:54 a.m. someone started offering stock at exactly $8.00, just under the $8.34 pre-market high. The 9:54 minute traded 180,015 shares, the biggest volume since the open to that point.

Stop It's 10:01. BIAF is at $7.62. A large block of shares has been offered at exactly $8.00 since 9:54, and the pre-market high is $8.34. Would you buy here?

Press play: the real Level 2, time and sales and chart stop at 10:01 a.m. ET for your call, then show what happened. The clip starts at 9:58 a.m. ET.

The wall peaked at 41,587 shares at 10:01:33, about 4% of the float. At 10:01:35 the first trade printed at $8.00. In about a tenth of a second, 39,716 shares traded at exactly $8.00 and the wall was gone. It wasn't pulled. Buyers ate it. One buy order swept 27,636 shares from $8.00 to $8.19 across 20 price levels.

The 10:01 minute went to $8.36, over the pre-market high. It kept climbing. A buy sweep of 18,437 shares ran from $8.98 to $9.13 at 10:08:07, and the high so far was $9.37 at 10:08. That minute traded 320,143 shares. Within five minutes it was back down to $8.13.

A lower high, and more stock stacked above

It bounced again. At 10:18 it pushed to $8.95, a lower high under the $9.37 top. After that it did not trade above $8.95 before the 12:07 halt.

Meanwhile more stock was stacked above. An ask wall at $9.00 showed up at 10:14. Another at $10.35 appeared at 10:17 and was pulled at 11:57. A wall of 50,157 shares at $9.49 appeared at 11:57 and was pulled at 12:07.

The slide came in steps. At 10:39 a sell order swept 19,157 shares from $8.01 to $7.80 and the minute hit $7.62. At 11:14 another sell sweep took 24,188 shares from $8.01 to $7.87. By midday it was back near $8.00.

One halt at $7.09

At 12:07:00 a sell order swept 62,872 shares from $8.13 to $7.47 across 61 price levels. A second one took 18,998 shares from $7.27 to $7.09. At 12:07:15 p.m. the stock was halted (a volatility pause) with the last trade at $7.09. The same minute, a headline came out: “bioAffinity Technologies, Inc. Announces Approximately $4 Million Registered Direct Financing of Common Stock and Concurrent Private Placement Priced At-The-Market Under Nasdaq Rules”.

An ask wall at $7.09, the halt price, was first seen at 12:07:03. It peaked at 169,237 shares, 14.6% of the float, at 12:07:15 and was pulled at 12:15:44. A 48,000-share wall showed at $7.39 at 12:15.

Stop It's 12:17. BIAF has been halted for ten minutes since its last trade at $7.09, and the financing headline came out as the halt began. Trading is about to reopen. Would you buy the reopen?

Press play: the real Level 2, time and sales and chart stop at 12:17 p.m. ET for your call, then show what happened. The clip starts at 12:14 p.m. ET.

It reopened at 12:17:15 at $6.30, 11% below where it stopped. The opening print was one trade of 53,649 shares on Nasdaq. The 12:17 minute ranged from $6.04 to $6.93 and traded 271,702 shares.

The rest of the day

It sank to $5.66 at 12:30, bounced to $6.82 at 1:09 p.m., and at 1:30 a second press release about the financing went out. The afternoon was quiet and drifting, with $5.50 the low after the open, at 3:08 p.m.

It closed at $5.65, below the $6.16 previous close and 40% under the $9.37 high.

In the regular session, 9.86 million shares traded. Counting pre-market and after hours, 12.35 million shares traded: the float changed hands about 11 times, at about 14 times its normal volume.

What to take from it

Replay this day

Trade BIAF on October 8, 2026 yourself in Hindsight Markets: the real tape, the order book and the halts, on a clock you control, with fills from the real book.

Replay this day Log in