SpaceX, the Secret Behind the $800 Billion Valuation: Space Connected by Lasers, and Finding Hidden Beneficiaries
Elon Musk denied the report, but the market's excitement is real. We dive into the '1550nm laser' technology connecting space and the hidden supply chain stocks
The Real Reason the Market is Obsessed with SpaceX (Despite Musk’s Denial)
Recent reports from the Wall Street Journal (WSJ) and others shook the market by stating SpaceX’s enterprise value reached $800 billion (approx. 1,100 trillion KRW).
However, Elon Musk immediately drew a line, dismissing it as ‘Inaccurate.’ He stated that SpaceX is already cash flow positive and has no reason to raise funds.
Nevertheless, why should we pay attention to this happening? Despite Musk’s denial, the important shift is that the market has begun to view SpaceX as a ‘Global Big Tech’ class company. The source of this massive expectation isn’t rockets, but the ‘Laser Link Technology’ connecting space with light.
1. Cash Cow: Why ‘Starlink’, Not Rockets?
SpaceX’s symbol is the massive rocket Starship bound for Mars, but the real breadwinner filling the company’s wallet is Starlink.
The Power of the Subscription Economy: Rocket launches are close to one-off events where revenue occurs per mission. Conversely, Starlink is a cash-generating machine with an estimated 8 million subscribers by the end of 2025 paying monthly subscription fees that flow in continuously.
Virtuous Cycle of Funds: The massive cash earned by Starlink through the space internet business is poured directly into the development costs of the next-generation launch vehicle, Starship. Essentially, Starlink’s success is the core engine guaranteeing SpaceX’s future.
2. Technical Analysis: The Backbone of Space Internet, ‘Laser Links’
The technical moat where Starlink overwhelms competitors like OneWeb or Amazon Kuiper lies in Optical Space Lasers.
Unlike past satellite communications that required bouncing signals to ground stations, Starlink satellites exchange data via lasers in space. In the vacuum of space, there is no medium to obstruct light, so light travels about 30% faster than in optical fiber, and paths can be designed to be straighter, expecting a 20–40% reduction in latency for global communication. This becomes an irreplaceable advantage in financial trading or military operations where ultra-low latency is vital.
The Key is the ‘1,550nm’ Wavelength: The Secret of the Economic Moat
So, what lasers is SpaceX using? Technical analysis suggests they are using the 1,550nm (nanometer) band, not a proprietary standard. There are crucial economic and technical reasons hidden here.
Supply Chain Unification: 1,550nm is the standard wavelength (C-Band) used in terrestrial data centers and optical networks. Instead of developing new space-grade parts, SpaceX drastically cut costs by utilizing commercial off-the-shelf components already in the market.
Eye Safety: The 1,550nm wavelength is absorbed by the cornea and does not reach the retina. Therefore, it is harmless to the human body (eyes) when communicating with ground stations, making it far more advantageous for obtaining regulatory approval.
