Alright, imagine you're in a big library where everyone wants to know what's happening in the stock market.

1. **EHang (EH)** had a really good day! They sold more things than they thought they would, so their sales went up by a lot compared to last year. But even though their shares were going down a little after hours, it was still a good day for them!

2. **Sangamo Therapeutics (SGMO)** made a deal with someone called Pfizer, but then they said, "No thanks, we don't want to work together anymore." So, Sangamo's shares went way down.

3. **Cemtrex (CETX)** is like the star student who always does better than everyone expects! They sold more stuff than everyone thought they would, so their shares are going up after hours.

4. **CompoSecure (CMPO)** said they're going to make a new company called Resolute Holdings. So, people are excited about CMPO's news and their shares went up!

5. **Ambow Education (AMBO)** had a little problem; they didn't sell as much stuff as last time. But at least they made some money this time, not lost it like before. People were a bit sad about AMBO's news, so their shares were going down after hours.

So, in the library, everyone is talking about these five companies because something interesting happened to them today! Read from source...

As a language AI model, I don't have the ability to browse or critique news articles. However, I can provide general advice on how to critically evaluate information you read:

1. **Check the Source**: Is the source reputable and reliable? Look for established, trusted news organizations.

2. **Read Beyond the Headline**: Headlines can be misleading. Always read the entire article to understand the context and details of the story.

3. **Fact-Check**: Use fact-checking websites to verify information in the article. Websites like Snopes, FactCheck.org, or PolitiFact can help determine if the information is accurate.

4. **Consider the Author'sCredentials**: Does the author have expertise on the topic they're writing about? Have they written other credible pieces?

5. **Bias**: Be aware of potential biases in the reporting. This can include political bias, confirmation bias (the tendency to interpret new evidence as confirmation of one's previously held beliefs), or bias due to the source funding.

6. **Logical Fallacies**: Watch out for logical fallacies, which are errors in reasoning that render an argument invalid. These could include ad hominem attacks (attacking the person rather than their arguments), straw man arguments (misrepresenting someone's argument), or false dichotomies (presenting only two options when there is a spectrum of possibilities).

7. **Emotional Behavior**: Be wary if you find yourself feeling excessively emotional while reading, as this can cloud your judgment and make it harder to critically evaluate the information.

8. **Consider Alternative Perspectives**: Look for articles that present differing viewpoints on the same topic to get a more balanced understanding.

9. **Update Your Knowledge**: Information can change rapidly, so be sure to check for updates on a story you're following.

10. **Think Critically**: Finally, don't just accept what you read at face value. Always think critically about the information and encourage others to do the same.

Based on the information provided in the article, here's a sentiment analysis:

1. **Positive**:
- Earnings/EPS surprises: "Earnings updates", "EPS Surprise", "Rev Surprise"
- Stock price movements after announcements: "surged 7.4% to $16.80" (CMPO), "climbed 12.1% to $3.51 in after-hours trading" (CETX)

2. **Negative**:
- Stock price declines after announcements: "fell 0.4% to $15.60" (EH), "tumbled 60.4% to $0.9270" (SGMO), "dipped 13.8% to $2.94 in the after-hours trading session" (AMBO)
- Net revenues decline: "Net revenues fell by 11.1% to $2.4 million during the quarter" (AMBO)

3. **Neutral**:
- General market and news updates without clear sentiment: "Pre-Market Outlook", "Benzinga simplifies the market"

Overall, the article leans slightly bearish due to the significant stock price drops reported for three of the five stocks mentioned. The positive movements and earnings surprises are less impactful compared to the substantial negative changes.

Sentiment Score (scale of -100 to 100): -35

To provide comprehensive investment recommendations, let's analyze the given companies based on the recent news and their financial performance. I'll also include potential risks associated with each.

1. **EHang Holdings Ltd (NASDAQ: EH)** - *Buy*
- *Recommendation*: EH recently reported strong sales growth of 187% YoY, indicating increasing demand for its autonomous aerial vehicle technology.
- *Risks*:
- High volatility in share price.
- Still in the early stages of commercialization; potential execution risks.
- dependence on a few key customers.

2. **Sangamo Therapeutics Inc (NASDAQ: SGMO)** - *Sell/Avoid*
- *Recommendation*: SGMO's shares plummeted after announcing the termination of its collaboration with Pfizer. The company will need to find new partnerships or develop its pipeline independently.
- *Risks*:
- Potential delays in clinical trials and regulatory approvals.
- High dependence on a single product candidate (giroctocogene fitelparvovec).
- Low financial runway.

3. **Cemtrex, Inc (NASDAQ: CETX)** - *Buy*
- *Recommendation*: CETX reported strong sales growth and beat analyst expectations. Its business segments have shown resilience in challenging macroeconomic conditions.
- *Risks*:
- Exposure to international markets that may be impacted by geopolitical instability or economic downturns.
- Potential supply chain disruptions.
- Low analyst coverage, making the stock less liquid and more volatile.

4. **CompoSecure, Inc (NASDAQ: CMPO)** - *Hold*
- *Recommendation*: CMPO announced plans to spin off Resolute Holdings Management. This strategic move could unlock shareholder value but will require a successful separation process.
- *Risks*:
- Risks associated with the spin-off, such as distractions for management and potential disruptions in operations.
- High debt levels and significant interest expenses that limit cash flow generation.

5. **Ambow Education Holding Ltd (NYSE: AMBO)** - *Sell/Avoid*
- *Recommendation*: Despite reporting a positive net income, AMBO's revenue continues to decline due to regulatory changes in China's education sector. The company is also facing liquidity concerns.
- *Risks*:
- Significant exposure to the Chinese market and dependence on a single territory for revenue generation.
- Uncertainty around future regulations and demand for educational services in China.
- Cash flow constraints and potential operational disruptions.

Before making investment decisions, consider all relevant factors such as your risk tolerance, time horizon, and overall portfolio composition. It is recommended to do thorough research or consult with a licensed financial advisor before investing.