Arbitrum is a type of digital money that people can buy and sell. It had a good day and went up by more than 3% in one day, but it didn't do well last week and lost some value. The highest price it ever reached was $2.39. People are not trading as much as before and there is more Arbitrum available for people to buy. Read from source...

1. The title is misleading and sensationalized, as it implies a significant increase in Arbitrum's value when in fact the change is only 3% in 24 hours and 3% loss in a week. A more accurate title could be "Arbitrum Experiences Minor Fluctuations in Price Over Short Term".
2. The article lacks proper context and background information about Arbitrum, its purpose, how it works, and its potential impact on the cryptocurrency market. This makes it difficult for readers to understand the significance of the price change and why they should care.
3. The use of technical terms such as "Bollinger Bands" and "volatility" without explaining what they mean or how they are relevant to Arbitrum's performance is confusing and intimidating for non-experts. A simpler explanation could be "a measure of how much the price changes over time".
4. The article focuses too much on the price movement and not enough on the underlying fundamentals, innovations, or adoption of Arbitrum. This creates a superficial impression of the coin's value and potential, rather than informing readers about its actual strengths and weaknesses.
5. The article does not mention any possible reasons or factors that could have influenced the price change, such as news, events, market trends, or competitors. This leaves readers without a clear understanding of what drives Arbitrum's performance and why it might change in the future.

- Arbitrum is a cryptocurrency that operates on the Ethereum blockchain as a layer 2 scaling solution, enabling faster and cheaper transactions. It has experienced a short-term price increase of over 3% in the past 24 hours, but a long-term negative trend of about 3% in the past week.
- The main factors driving Arbitrum's price are its adoption, network effect, and scalability compared to other layer 2 solutions or Ethereum itself. Some of the potential risks include regulatory uncertainty, security breaches, competition, and changes in Ethereum's network fees or protocol upgrades.
- Based on these factors and risks, a possible investment recommendation for Arbitrum is to buy at current levels with a stop-loss order below the recent low of $1.60, and set a profit target at around $2.00 or the 50-day moving average. Alternatively, one could use a limit order to buy below the market price and sell above the profit target, or use a trailing stop-loss strategy to adjust the stop-loss level as the price moves higher. One should also diversify their portfolio by investing in other cryptocurrencies, layer 2 solutions, or Ethereum itself, as well as consider the overall market conditions and risk appetite.