Daily snapshot of the top-moving US stocks
Last updated Jun 24, 2026, 8:01 PM
Note: Figures below are as of the last close — June 23, 2026 at 4:15 PM ET.
The session was dominated by micro-cap and sub-penny speculation, with several names posting triple-digit gains on massive volume while legitimate large-caps quietly bled out. The real tell is in the most-active list: SOXS — a 3x inverse semiconductor ETF — surged nearly 24%, signaling that traders are actively betting against the chip sector, which was confirmed by NVDA dropping 4.1% and INTC falling 6.1%. Beneath the noise of the penny-stock circus, there's a clear risk-off, anti-semis current running through the day.
ATLN — +202% to $1.33 (volume: 411M shares) This is the headline number of the day. ATLN is a micro-cap that traded over 411 million shares — an extraordinary volume figure for a $1 stock. Without a confirmed catalyst, a move of this size at this price point demands extreme skepticism, but the sheer volume separates it from the pure noise names. Watch for a press release or SEC filing explaining the move before drawing conclusions.
BLZE (Backblaze) — +43.6% to $11.66 (volume: 35M shares) Backblaze is a legitimate cloud storage and backup company. A 44% move with 35 million shares traded on a stock that typically sees a fraction of that volume strongly suggests a material catalyst — likely an earnings beat, acquisition rumor, or a major partnership announcement. This is the most credible large-percentage gainer on the board and worth digging into.
FCUV (Focus Universal) — +89.2% to $4.11 (volume: 76.6M shares) Focus Universal develops universal smart instrumentation and IoT hardware. An 89% jump with heavy volume on a sub-$5 stock is unusual. This could be a product announcement or contract win, but the price and volume profile also make it a candidate for speculative momentum trading. Verify the catalyst before treating this as investable.
HSCS (Heart Test Laboratories) — +55.4% to $2.75 (volume: 134M shares) Heart Test Labs makes AI-powered cardiac diagnostic tools. A 55% gain on 134 million shares is significant for a micro-cap medtech. The most likely driver is a clinical trial result, FDA clearance update, or partnership news. The volume is too large to dismiss — something specific happened here.
Treat these as avoid-or-extreme-caution territory:
SOXS — +24% to $4.05 (volume: 864M shares) SOXS is the Direxion 3x inverse semiconductor ETF. When this thing moves 24% with 864 million shares traded, it means institutional and retail traders alike are aggressively shorting the chip sector. Combined with NVDA -4.1% and INTC -6.1% on heavy volume, this looks like the start of a broader semiconductor selloff, not a one-day blip. If you hold chip stocks, this is a flashing yellow light.
INTC — -6.1% to $132.28 (volume: 131M shares) Intel down 6% on 131 million shares is a major move for a large-cap. At $132, Intel has clearly been on a recovery run — a drop of this size on this volume suggests either a guidance cut, analyst downgrade, or macro headwind hitting the stock hard. Given the SOXS surge alongside it, the semiconductor trade is the developing story to track heading into the next session.
AI-generated output for information only — verify before acting on it.