
Often, investors’ reaction to such news is blasé. I have mostly found that they don’t vet a new piece of product news by shoving around the shares of a public company, though there are counter-examples. I would posit that the larger and more diversified the company, the lesser the impact.
And then there is Apple, which combines the chimera properties of both diverse hardware revenues, along with software and cloud incomes. The company’s product-release days tend to have a larger media spotlight attached to them than what other firms’ can engender. As such, we should perhaps not be overly surprised that when Apple talks, the markets listen.
I present to you an adapted chart, derived from Google Finance, with some notes verified by ZeroHedge and Business Insider:

Each percent change in Apple stock is worth around $7.5 billion, making movements of 2 or 3 percent more interesting than watching a midcap, buffeted by larger market forces, move in the same way.
Today, Apple at least met market expectations, but investors awarded muted praise. Are investors too negative, or were the gains predicated in Apple having a good product day priced into its shares already? Perhaps both