BIYA on October 7, 2026: why it ran

The day, step by step

• Small cap
• Momentum
• Main move: pre-market
• Round-number break
• Gap, run and fade
• No halts
• Float traded 23x

The day before

On October 6, BIYA traded between $1.30 and $2.48. The official close was $1.37.

After hours the last bar of that day was $2.33. No news headline is in the data for the 7th.

Pre-market: the float traded by 4:13 a.m.

The first trades on the 7th were at $2.09, already above the $1.37 close. The float is 2.75 million shares.

The 4:13 a.m. candle jumped from $2.13 to $2.84 on 819,419 shares. By the end of that minute, more shares had traded than exist in the whole float. By 8:19 a.m. that was ten times the float.

Then it went sideways for hours. From 4:14 a.m. to 8:19 a.m. it traded between $2.02 and $3.10, mostly between about $2.35 and $2.99.

The wall at $3.00

These are order-book levels, not visible on the candles. Stock was offered at exactly $3.00 twice before the bell.

The first wall was seen at 4:20 a.m. It peaked at 85,060 shares at 4:55 a.m., about 3% of the float. A buy sweep of 67,276 shares ran from $2.80 to $2.88 at 4:54. At 5:38:49 a.m., 53,250 shares traded at exactly $3.00 in that one second and the wall was gone. The 5:38 candle touched $3.10. The next minute closed at $2.95.

A second wall appeared at $3.00 at 6:02 a.m. It peaked at 73,257 shares at 8:12 a.m. Meanwhile the stock traded between about $2.34 and $2.80.

Here's what happened. At 8:20:41 a buy order took 109,468 shares from $2.66 to $2.79. At 8:20:46 45,396 shares traded at exactly $3.00 in under a second and the wall was gone. It wasn't pulled. Buyers ate it. A 141,412-share buy sweep ran from $2.97 to $3.17 across 21 price levels.

The 8:20 candle opened at $2.53 and closed at $28.56 on 1.83 million shares. A 30,389-share print went through at $14.72 at the ask. The high so far was $37.10, in the 8:21 minute. That is up 2,618% from the previous close. The same candle's low was $7.29.

From $37.10 to $1.67

The fall was as fast as the rise. The 8:22 candle hit $5.19. By 8:25 the low was $2.72. Big prints in those minutes included 24,997 shares at $6.41 and 30,539 shares at $6.93. There were no halts all morning.

From 8:26 to 8:49 it chopped between $2.76 and $3.75. At 8:42 a bid wall appeared at $2.38. It peaked at 73,830 shares and was pulled at 8:43.

Then it slid. The 9:02 minute closed at $2.03, and the stock hit $1.67 at 9:15, the low so far. The 9:17 minute closed back at $2.06. 44.87 million shares traded before the bell.

The open and the afternoon walls

It opened at $2.14, up 57% from the previous close. The opening print was 54,621 shares at $2.14. The 9:31 minute reached $2.50. After that the stock mostly sat near $2 through the morning. The low since the open was $1.78 at 11:03.

More walls showed up. A $3.00 ask wall had been on the book since 9:30. An ask wall at $2.50 appeared at 9:40 a.m. and reached 101,675 shares at 1:03 p.m. At 1:01 p.m. a new one appeared at $2.38.

At 1:07:24 p.m. buyers started taking the $2.38 wall. Over 8.2 seconds, 74,629 shares traded at exactly $2.38. Two prints of 25,333 and 28,333 shares crossed at 1:07:32. At 1:11:08 p.m. the $2.50 wall went too. 79,003 shares traded at exactly $2.50 in 1.8 seconds.

The 1:11 candle reached $2.65 on 474,180 shares. At 1:26 it pushed to $2.81. At 1:40 a 99,160-share buy sweep ran from $2.76 to $2.82, and the high after the open was $2.89 at 1:40 p.m. That stayed under the $3.00 wall. At 1:43 p.m. the stock dropped to $2.37.

The close and after hours

It closed at $2.31, 94% under the $37.10 high of the day. That high came before the bell, 1,634% above the open.

After hours it reached $2.49 at 4:21 p.m. The last trade in the data was $2.12 at 7:59 p.m.

Volume was 44.87 million before the bell, 17.96 million in the regular session and 1.21 million after hours. For the whole day, 64.04 million shares traded: the float changed hands about 23 times, at about 81 times its normal volume.

What to take from it

• Both $3.00 ask walls before the bell were eaten. The first $3.00 wall was eaten at 5:38 a.m. and the stock fell back. The second was eaten at 8:20 a.m. and the stock spiked.
• On two of this day's wall breaks, the screen price was not the fill price. Two seconds after the 8:20 break, the screen showed only 300 shares at $3.72 and 5,000 shares averaged $3.74. After the 1:11 p.m. break at $2.50, 18,122 shares were showing and the fill matched the screen.
• The biggest moment can come before the open. The high of the day was $37.10 at 8:21 a.m. The regular session opened at $2.14 and closed at $2.31.

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