Recaps · September 15, 2026

BDRX, September 15: a 4:14 a.m. spike, a $3.40 high at 5:21, an 8:00 headline, and two walls at the open

• Small cap
• Momentum
• Main move: pre-market
• Float traded 36x
• Ask wall break
• Bid wall break
• Ran and faded

Float

926,260 shares

Volume

33.23 million shares

Previous close

$1.12

Open

$1.28 (up 14.3%)

High

$3.40 at 5:21 a.m.

Close

$1.33

Pre-market: the float traded by 4:18 a.m.

The official previous close was $1.12. The first trades on the 15th were at $1.20, already above it. For the first ten minutes the stock sat near $1.20 on thin volume.

At 4:14 a.m. it woke up. From about $1.27 it ran to $2.90 at 4:18 a.m. It traded through $2.00 at 4:16. By the end of the 4:17 a.m. minute, more shares had traded than exist in the whole float (926,260).

It held between $2.18 and $2.78 for the next 45 minutes. The high of that stretch was $2.78 at 4:25 and the low was $2.18 at 5:01. Then at 5:05 a.m. it started again, from about $2.25.

It made $3.40 at 5:21 a.m., the high so far, before the bell. That was 204% above the previous close. By 5:36 it had traded as low as $2.82. 25.34 million shares traded before the open.

There were two more pushes after that. It reached $2.97 at 5:41 a.m. and $2.80 at 5:56 a.m. Both stopped well under $3.40.

The 8:00 headline

At 8:00 a.m. GlobeNewsWire ran: “Biodexa Enters Into Warrant Exercise Transaction for $2.3 Million in Gross Proceeds.” The stock closed the 7:59 minute at $1.98. By 8:02 it had traded at $1.61.

It kept sliding. At 8:03, an ask wall of 109,824 shares appeared at $1.60, about 12% of the float. It was pulled at 8:30. At 8:27 a 6-K was filed, and at 8:33 seven 424B3 filings came in.

By 9:05 it was at $1.09, $2.31 under the high. From 9:03 a large bid wall sat at $1.00.

Two walls at the open

From 9:17 a.m., someone was offering a lot of stock at exactly $1.25. It peaked at 102,561 shares at 9:20, about 11% of the float. The stock sat just under it for minutes.

At 9:26:06 one buy order swept 102,590 shares from $1.23 to $1.29 across 7 levels. The wall was gone by 9:26:07. It wasn't pulled. It was eaten.

As the wall went, a new one appeared on the other side. From 9:26 a.m. someone was bidding for a lot of stock at exactly $1.26. It peaked at 106,892 shares at 9:29, about 12% of the float.

At 9:30:37 the trades started printing at $1.26. In 3.7 seconds, 89,304 shares traded at exactly $1.26, and the bid wall was gone at 9:30:41. It wasn't pulled. It was traded through. The 9:30 candle opened at $1.28, ranged from $1.22 to $1.33 and closed at $1.24.

A buy sweep at 9:32:49 of 36,105 shares ran from $1.30 to $1.32, and the 9:32 candle's high was $1.34. After that it drifted. Another ask wall, over 100,000 shares at $1.26, stood from 9:54 to 9:57. The stock was at $1.20 by 9:56.

The low after the open came at 10:07, just under $1.14.

The 10:51 spike

After about an hour between roughly $1.14 and $1.22, it moved at 10:46. At 10:51:24 a buy sweep took 65,190 shares from $1.27 to $1.33 across 7 levels, and 13 seconds later another bought 46,090 shares up to $1.35. By 10:55 the price touched $1.43, its highest since 8:06 a.m.

It did not hold. A sell sweep at 10:56:08 took 45,303 shares from $1.41 to $1.39, and the 10:56 candle's low was about $1.31. The 11:00 candle closed at about $1.26, near where the 10:51 sweep began.

The rest of the day

The afternoon was quiet and mostly between $1.22 and $1.33. At 3:46 p.m. the $1.20 bid wall (up to 101,120 shares) was pulled. A buy sweep of 40,385 shares ran $1.27 to $1.30 seconds later.

It closed at $1.33, 61% under the $3.40 high. That high came before the bell, at 5:21 a.m., 166% above the $1.28 regular-session open. After hours it touched $1.40 at 5:03 p.m.

The regular session traded 7.26 million shares, about 8 times the float. For the whole day, 33.23 million shares traded: the float changed hands about 36 times. Relative volume was 7.8. Most of that volume came before the open.

What to take from it

• Where the volume trades matters. About 25 of the 33 million shares traded before the open, and the $3.40 high came at 5:21 a.m. The regular session was much smaller.
• The book can be thin or deep behind the screen price. At the $3.40 high a 5,000-share buy cost $97 over the screen. Seconds after the $1.25 wall broke at 9:26 it cost nothing extra.
• Later pushes stopped lower. After $3.40 came $2.97 and then $2.80, and the stock closed at $1.33, 61% under the high.