Hindsight Markets / Small-cap stocks on August 13, 2026

CURI on August 13, 2026: why it ran

Published October 11, 2026 · By Hindsight Markets

On August 13, 2026, CURI opened up 27.5% from the previous close of 2.80 and reached 4.30 at 10:16 a.m. ET. The exchange did not halt it.

Previous close

2.80

Open, 9:30 a.m.

3.57

Gap at the open

up 27.5%

Pre-market high

3.90 at 4:00 a.m.

High, 4 a.m. to 4 p.m.

4.30 at 10:16 a.m.

Low, 4 a.m. to 4 p.m.

3.43

After-hours high, 4 p.m. to 8 p.m.

4.07 at 5:39 p.m.

Last trade before 4:00 p.m.

3.98

Volume

8.39 million

Relative volume

36.4x

Float

41.36 million shares, from filings as of August 13, 2026

Shares outstanding

59.29 million

Halts

none in the halt feed

Why it ran

News and SEC filings for CURI published between the previous session's close and the first minute CURI traded 20% above it, at 4:00 a.m. ET, newest first, from the same feeds the replay shows.

1. August 12, 2026, 7:06 p.m. ET · MarketBeat

   CuriosityStream Q2 Earnings Call Highlights

2. August 12, 2026, 6:37 p.m. ET · Seeking Alpha

   CuriosityStream Inc. (CURI) Q2 2026 Earnings Call Transcript

3. August 12, 2026, 6:21 p.m. ET · Zacks Investment Research

   CuriosityStream Inc. (CURI) Tops Q2 Earnings and Revenue Estimates

News via Stock News API

How it traded

Gap, run and fade. It gapped up 27.5% to 3.57 at the open, ran from the open to the high of 4.30 in 46 minutes, then gave back 44% of that move by 4:00 p.m., trading at 3.98.

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 8 hours 53 minutes after the latest news item before it (MarketBeat, Aug 12, 7:06 p.m.).
• Volume, from the one-minute bars: 1.52 million shares before the 9:30 a.m. open (18%), 1.42 million in the first 30 minutes (17%), and 5.45 million in the rest of the day to 8 p.m. (65%).
• Other days CURI met the small-cap rule in our recaps: 1, the latest on August 12, 2026.

Halts

The exchange's halt feed shows no halts for CURI 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.