Key TakeawaysShares in Arm Holdings will likely remain in focus on Tuesday after the stock surged yesterday following a report that the iPhone 16 will run on a chip based on the British company’s design. Although the stock has found buying interest this month around the 200-day moving average, it remains susceptible to further selling while trading under the closely-watched 50-day moving average.Investors should monitor key support levels on Arm's chart at $94 and$78, while watching important resistance le ...