There are notable gap-ups and gap-downs in today's session.

Let's have a look at what is happening on the US markets on Tuesday. Below you can find the gap up and gap down stocks in today's session.

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TODAY'S GAP UP STOCKS

TICKER
CHANGE
COMMENT

STAI [https://www.chartmill.com/stock/quote/STAI/profile]
85.1%
Exciting news for SCANTECH AI SYSTEMS INC's (NASDAQ:STAI [https://www.chartmill.com/stock/quote/STAI/profile]) stock! It advanced 85.1% to $1.24 in today's session, accompanied by a substantial gap of 38.72%. Earlier today the company had a press release: ScanTech AI Unlocks Potential $100M Market Opportunity Through TIPS Procurement Contract with Creeksource Consulting [https://www.chartmill.com/news/STAI/gnwcq-2025-7-29-scantech-ai-unlocks-potential-100m-market-opportunity-through-tips-procurement-contract-with-creeksource-consulting].

SCNI [https://www.chartmill.com/stock/quote/SCNI/profile]
56.1%
SCINAI IMMUNOTHERAPEUTICS LT'S (NASDAQ:SCNI [https://www.chartmill.com/stock/quote/SCNI/profile]) shares rose 56.1% to $3.2 with a gap of 24.76%. The stock is trading 26.26% lower than 3 months ago.

SGD [https://www.chartmill.com/stock/quote/SGD/profile]
35.8%
During Tuesday's session, SAFE & GREEN DEVELOPMENT COR's (NASDAQ:SGD [https://www.chartmill.com/stock/quote/SGD/profile]) stock price showed an impressive increase of 35.8%, reaching $1.2 with a substantial gap of 15.07%. Shareholders saw the stock price going 39.36% lower is the past 6 months.

CLDI [https://www.chartmill.com/stock/quote/CLDI/profile]
35.33%
CALIDI BIOTHERAPEUTICS INC'S (NYSEARCA:CLDI [https://www.chartmill.com/stock/quote/CLDI/profile]) stock price is advancing with 35.33% to a price of $0.74 with a gap of 14.43%. Shareholders saw the stock price going 146.0% higher in the past month.

SRPT [https://www.chartmill.com/stock/quote/SRPT/profile]
23.52%
SAREPTA THERAPEUTICS INC'S (NASDAQ:SRPT [https://www.chartmill.com/stock/quote/SRPT/profile]) shares surged 23.52% to $17.12, accompanied by a significant 21.37% gap. SAREPTA THERAPEUTICS INC is releasing earnings today. Yesterday the company had a press release: HIMS and SRPT ALERTS: Bragar Eagel & Squire, P.C. Reminds Investors That Class Action Lawsuits Have Been Filed Against Hims & Hers and Sarepta and Encourages Investors to Contact the Firm [https://www.chartmill.com/news/SRPT/gnwcq-2025-7-28-hims-and-srpt-alerts-bragar-eagel-and-squire-pc-reminds-investors-that-class-action-lawsuits-have-been-filed-against-hims-and-hers-and-sarepta-and-encourages-investors-to-contact-the-firm].

AMKR [https://www.chartmill.com/stock/quote/AMKR/profile]
23.5%
AMKOR TECHNOLOGY INC'S (NASDAQ:AMKR [https://www.chartmill.com/stock/quote/AMKR/profile]) shares surged 23.5% to $26.22 with a remarkable gap of 13.89%. Yesterday the company had a press release: Amkor Technology Reports Financial Results for the Second Quarter 2025 [https://www.chartmill.com/news/AMKR/bizwire-2025-7-28-amkor-technology-reports-financial-results-for-the-second-quarter-2025].

PII [https://www.chartmill.com/stock/quote/PII/profile]
23.09%
In today's session, POLARIS INC's (NYSE:PII [https://www.chartmill.com/stock/quote/PII/profile]) stock experienced a notable rise of 23.09%, reaching $60.91 with a significant 9.93% gap. yesterday the company released their earnings. In the last month the stock gained 20.86%.

XPRO [https://www.chartmill.com/stock/quote/XPRO/profile]
22.78%
EXPRO GROUP HOLDINGS NV'S (NYSE:XPRO [https://www.chartmill.com/stock/quote/XPRO/profile]) shares rose 22.78% to $11.05 with a gap of 13.75%. yesterday the company released their earnings. Earlier today the company had a press release: Expro Group Holdings N.V. Announces Second Quarter 2025 Results, Reaffirms Full-Year Guidance, and Remains Committed to Shareholder Return Targets [https://www.chartmill.com/news/XPRO/bizwire-2025-7-29-expro-group-holdings-nv-announces-second-quarter-2025-results-reaffirms-full-year-guidance-and-remains-committed-to-shareholder-return-targets].

TNFA [https://www.chartmill.com/stock/quote/TNFA/profile]
19.52%
TNF PHARMACEUTICALS INC'S (NASDAQ:TNFA [https://www.chartmill.com/stock/quote/TNFA/profile]) stock price is advancing with 19.52% to a price of $0.15 with a gap of 15.03%. In the last 3 months the share price dropped with 37.87%.

CLS [https://www.chartmill.com/stock/quote/CLS/profile]
18.69%
CELESTICA INC (NYSE:CLS [https://www.chartmill.com/stock/quote/CLS/profile]) rose 18.69% to $205.76 with a gap of 7.36% during Tuesday's session. A press release (Celestica Announces Second Quarter 2025 Financial Results [https://www.chartmill.com/news/CLS/gnwcq-2025-7-28-celestica-announces-second-quarter-2025-financial-results]) was released yesterday.

For the full gap up stocks list go to our gap up stocks [https://www.chartmill.com/stock/market/gap-up-and-down/usa-nyse-nasdaq-amex] screener.

TODAY'S TOP GAP DOWN STOCKS

TICKER
CHANGE
COMMENT

PETWW [https://www.chartmill.com/stock/quote/PETWW/profile]
-57.63%
WAG! GROUP CO'S (NASDAQ:PETWW [https://www.chartmill.com/stock/quote/PETWW/profile]) shares declined by 57.63% to $0.0, showing a 69.84% gap in today's session. The stock is trading 60.67% lower than a month ago.

AIM [https://www.chartmill.com/stock/quote/AIM/profile]
-55.34%
In today's session, AIM IMMUNOTECH INC's (NYSEARCA:AIM [https://www.chartmill.com/stock/quote/AIM/profile]) stock witnessed a 55.34% fall to $3.22 with a 84.72% gap. In the last 3 months the stock gained 5.0K%.

LTRYW [https://www.chartmill.com/stock/quote/LTRYW/profile]
-50.0%
LOTTERY.COM -CW21'S (NASDAQ:LTRYW [https://www.chartmill.com/stock/quote/LTRYW/profile]) stock price decreased by 50.0% to $0.01 with a gap of 45.05%. The stock is trading 55.17% higher than 6 months ago.

WLGS [https://www.chartmill.com/stock/quote/WLGS/profile]
-42.2%
Today, WANG & LEE GROUP INC's (NASDAQ:WLGS [https://www.chartmill.com/stock/quote/WLGS/profile]) stock experienced a 42.2% fall to $0.05 with a 56.71% gap. Shareholders saw the stock price going 85.53% higher in the past month.

BKKT [https://www.chartmill.com/stock/quote/BKKT/profile]
-41.41%
Today, BAKKT HOLDINGS INC's (NYSE:BKKT [https://www.chartmill.com/stock/quote/BKKT/profile]) stock experienced a 41.41% fall to $10.06 with a 47.95% gap. A press release (Bakkt Announces Pricing of $75 Million Public Offering [https://www.chartmill.com/news/BKKT/bizwire-2025-7-29-bakkt-announces-pricing-of-75-million-public-offering]) was released yesterday.

ZOOZ [https://www.chartmill.com/stock/quote/ZOOZ/profile]
-39.32%
Unfortunate news for ZOOZ POWER LTD's (NASDAQ:ZOOZ [https://www.chartmill.com/stock/quote/ZOOZ/profile]) stock! It registered a 39.32% decline to $2.13 in today's session, accompanied by a 44.38% gap. In the last month the share price increased with 289.0%.

PET [https://www.chartmill.com/stock/quote/PET/profile]
-34.87%
Unfavorable news for WAG! GROUP CO's (NASDAQ:PET [https://www.chartmill.com/stock/quote/PET/profile]) stock! It witnessed a 34.87% decline to $0.08 in today's session, along with a 40.84% gap. In the last 3 months the share price dropped with 28.48%.

STSSW [https://www.chartmill.com/stock/quote/STSSW/profile]
-33.33%
During Tuesday's session, SHARPS TECHNOLOGY INC -27's (NASDAQ:STSSW [https://www.chartmill.com/stock/quote/STSSW/profile]) stock price decreased by 33.33% to $0.02 with a significant 29.33% gap. In the last 3 months the share price increased with 134.0%.

LIDRW [https://www.chartmill.com/stock/quote/LIDRW/profile]
-25.0%
AEYE INC -CW27'S (NASDAQ:LIDRW [https://www.chartmill.com/stock/quote/LIDRW/profile]) shares experienced a 25.0% decline to $0.27 during Tuesday's session, accompanied by a 67.24% gap. The stock is trading 317.0% higher than a month ago.

NOTE [https://www.chartmill.com/stock/quote/NOTE/profile]
-23.16%
During Tuesday's session, FISCALNOTE HOLDINGS INC's (NYSE:NOTE [https://www.chartmill.com/stock/quote/NOTE/profile]) stock price decreased by 23.16% to $0.61 with a significant 26.84% gap. A press release (FiscalNote Files Preliminary Information Statement to Authorize Process for Potential Reverse Stock Split at Board’s Discretion [https://www.chartmill.com/news/NOTE/bizwire-2025-7-29-fiscalnote-files-preliminary-information-statement-to-authorize-process-for-potential-reverse-stock-split-at-boards-discretion]) was released earlier today.

Our gap down stocks [https://www.chartmill.com/stock/market/gap-up-and-down/usa-nyse-nasdaq-amex] screener will show you the full list.