Apple's 5.7% drop last week was par for the course
Average post WWDC loss: 5.4%. Average gain from the previous year: 56.8% — There was the usual gnashing of teeth on the Apple (AAPL) investor boards when the company's share price dropped $6.18 ($1.8%) Monday, the day of Steve Jobs' iCloud keynote.
Context & Ripple Effects
Apple stock has a history of violent moves around news rather than fundamentals: the September 2008 nosedive and the slide below $90 the following month came amid the financial crisis, before the rally through early 2009 that bulls argued would continue. Fortune's point this week is that the latest swing fits a measurable pattern, not a new story.
After Steve Jobs introduced iCloud at WWDC on Monday, AAPL fell $6.18 (1.8%) that day and finished the week down 5.7% — almost exactly the 5.4% average post-WWDC loss — even though the stock has gained an average of 56.8% over the prior year. The article's argument to nervous investors: keynote-week selling is statistical noise, not a verdict on iCloud.
First-order effects
- Investors who sold into the Monday iCloud-keynote drop locked in a 5.7% weekly loss on a stock still up more than 56% year over year, with no new negative disclosure from Apple to justify it.
- Traders now have a documented baseline for WWDC week — an average 5.4% post-event decline — which reframes this year's dip as routine rather than a warning sign about iCloud or iOS 5.
Second-order effects
- If the post-keynote dip is predictable, it becomes a positioning input: contrarian buyers have an incentive to accumulate during WWDC week, which in turn limits how deep future keynote selloffs can run.
- Apple's own news flow around the keynote — the Appstore trademark suit against Amazon, the rumored Nuance speech-to-text traces in iOS 5 internals — gives bears and bulls material either way, keeping volume elevated in a week with no earnings information.
Third-order effects
- As long as Apple concentrates its biggest product reveals at events like WWDC without accompanying guidance, its share price will keep swinging on sentiment around announcements rather than reported results — a structural gap between the product calendar and the earnings calendar that recurs every June.
- The pattern reinforces a longer dynamic visible since the 2008–09 swings: AAPL's valuation is driven by narrative cycles that analysts and boards must discount statistically, or risk selling at exactly the wrong moment.
The trend: Apple's stock has repeatedly dropped after its own biggest announcements — from the 2008 crash to the post-WWDC dip — making keynote-week weakness a recurring seasonal pattern that disciplined investors learn to buy rather than fear.