SpaceX shed more than $500 billion in market value since its June debut. The rocket company reports earnings after the bell Tuesday, with shares trading more than half below their intraday high and investors who caught the IPO already underwater.

Four straight weekly declines have left retail buyers nursing heavy losses. The comparison to Facebook's 2012 IPO is becoming harder to ignore. Facebook also stumbled at launch, fell for months, and bottomed near half its offering price. SpaceX's drop is steeper in absolute terms, erasing more than $500 billion versus Facebook's roughly $100 billion at that stage.

Analysts are bracing for mixed numbers. Revenue is expected to climb 68% to $6.85 billion, but the quarterly loss widens to 19 cents per share. The timing matters. Tesla reported earnings two weeks ago, and Wall Street punished the stock on rising costs, negative free cash flow, and Elon Musk's cautious remarks about expansion speed. SpaceX investors may be watching that playbook closely.

The post-IPO stumble raises a familiar question about space companies trading at stratospheric multiples. Musk's rocket venture came public with a valuation most analysts considered aggressive, and the market has been correcting ever since. Whether today's report offers any stabilizing news, or pushes the stock lower before recovery, will tell investors if this is capitulation or the start of a longer grind.

This material is informational only and does not constitute financial advice. Past performance and IPO trading patterns do not guarantee future results.