AIFF on September 17, 2026: why it ran

The day, step by step

• Small cap
• Momentum
• Main move: the afternoon
• Catalyst: news (7:50 a.m.)
• Bid wall
• Late-day run
• Lower high
• No halts

Pre-market: a headline at 7:50

AIFF closed the day before at $0.93. On September 16 it traded between $0.91 and $1.00, on 27,156 shares. That is a very quiet stock.

The first trade on the 17th was one share at $0.90 at 4:30 a.m. By 6:28 a.m. it was at $0.89, the low so far. Only a handful of shares traded before 7:50.

At 7:50 a.m. GlobeNewsWire ran: “Firefly Neuroscience's Evoke™ Platform Selected to Bring Objective Brain-Function Insights to Radial's AI-Native Operating System for Brain Medicine”. In that same minute it hit the pre-market high, $1.12 at 7:50 a.m., and closed the minute at $1.03.

It did not hold. In the 7:51 minute it traded as low as $0.93, back at the previous close. By 8:02 it was $0.93, and the 8:03 low was $0.93. Of the 131,713 shares traded before the bell, 31,260 came in those first two minutes. After that it traded thinly, with long gaps between prints. It was back above $1.00 at 8:49 and sat at $1.02 into the open.

The open and a quiet midday

It opened at $1.02, up 10% from the previous close. It worked up to $1.10 at 9:37. Then it slipped back to $1.03 by 9:56.

At 10:03:51 a buy order for 18,806 shares went through four price levels, from $1.06 to $1.09. The 10:04 minute reached $1.10 again. By 10:13 it was back at $1.03.

From 10:13 to 1:37 p.m. it stayed between $1.03 and $1.09, and many minutes had no trades at all. By 1:37 p.m. it was at $1.07, with no halts so far.

1:38 p.m. and the wall at $1.14

At 1:38 p.m. a buy order for 13,375 shares went through five levels, from $1.08 to $1.12. That minute traded 14,844 shares and closed at $1.12, the most volume in one minute since the 10:03 bar. By 1:40 it was at $1.14. It then chopped between $1.11 and $1.15 for the next 35 minutes.

The next push came at 2:20 p.m. At 2:20:28 a bid wall showed up at $1.14, peaking at 83,149 shares at 2:20:32 (0.6% of the float). It was pulled at 2:21:50. The 2:20 minute ran from $1.14 to $1.17 on 11,979 shares, and the 2:21 minute reached $1.18.

Over the next quarter hour it stayed between $1.15 and $1.22, climbing in small steps. At 2:35 it traded 22,556 shares.

$1.36 and the pullback

The 2:37 minute ran from $1.24 to $1.36, up 33% from the $1.02 open, on 117,404 shares. A buy order for 13,207 shares at 2:37:50 went through five levels, from $1.32 to $1.36. It was not a straight line. At 2:38:33 a sell order for 13,729 shares went down five levels, from $1.31 to $1.27. At 2:39:34 another sell went from $1.28 to $1.25. The 2:44 minute dipped to $1.22, below the $1.24 where the 2:37 minute began.

It ran again. The 2:46 minute reached $1.37, 2:47 reached $1.39, and 2:48 reached $1.40. At 2:48:11 a sell order for 37,040 shares went down six levels, from $1.39 to $1.34. At 2:53 it touched $1.41, with another sell sweep, and at 2:54:05 a 20,047-share buy took it from $1.37 to $1.40.

The 2:55 minute made $1.44, the high so far, on 156,302 shares. The next minute fell back to $1.36, and by 2:57 it had traded as low as $1.33.

After $1.44

It chopped between $1.31 and $1.42 for the next few minutes. The 3:00 minute reached a low of $1.32, and 3:02 closed at $1.39.

At 3:03 it pushed to $1.43, a lower high under the $1.44 top, on 91,388 shares. Three minutes later the 3:06 minute opened at $1.37 and fell to $1.26 on 164,478 shares. At 3:06:31 a sell order for 37,593 shares went from $1.32 to $1.30 across three levels.

By 3:11 it was $1.26 again, and it never got back to $1.43. At 3:14:33 a bid wall appeared at $1.10, well below the price. It peaked at 253,876 shares at 3:21:23 (1.7% of the float). Meanwhile the stock traded in a narrow band around $1.26 to $1.30.

The close and after hours

At 3:55 a buy order for 20,437 shares took it from $1.29 to $1.32 on 70,530 shares for the minute. At 3:56:22 an ask wall appeared at $1.49, above the day's high. It peaked at 76,927 shares at 3:59:41 (0.5% of the float). The stock closed at $1.29.

In the regular session, 3.28 million shares traded, about 22% of the 14.6 million float, and relative volume for the day was about 125 times normal.

After hours, 216,975 shares traded. At 4:23 p.m. it dropped to $1.13. At 5:00 p.m. it touched $1.32, and it was $1.27 in the last minute at 7:59 p.m. Our news feed shows no headline after 7:50 a.m.

What to take from it

• A headline spike can fade in minutes. AIFF hit $1.12 at 7:50 a.m. and was back at the $0.93 previous close by 8:02. The real move came about six and a half hours later.
• After the top, the next push stopped lower. $1.44 at 2:55 p.m., then $1.43 at 3:03 p.m., and the stock fell to $1.26 within minutes.
• The move came with volume. AIFF sat in a narrow range on thin volume for hours. Minute volume first passed 100,000 shares at 2:37 p.m.

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