Overview of Bitcoin in 2021: continued big price fluctuations, crossed $67,000 in November, 75%+ of circulating supply held by “illiquid addresses”, and more
Context & Ripple Effects
Bloomberg's year-end review closes out a decade-long arc the coverage has tracked since early on: from the steady-growth years of rising transaction volume and VC investment in 2015, through the $16K run that came wrapped in bubble warnings in December 2017, to 2021's mainstream breakout past $67,000 in November. The companion piece filed a day earlier frames the same year as a breakout story; this overview adds the structural detail that matters most analytically — over 75% of circulating supply sitting in illiquid addresses.
First-order effects
- With three-quarters or more of supply locked in illiquid addresses, the marginal buyer entering during the November $67K peak was trading against a much thinner effective float than headline market-cap figures suggest, which magnifies both the year's large price fluctuations and any holder's mark-to-market exposure.
Second-order effects
- A shrunken tradable float cuts both ways on the way down: the same concentration that powered the climb to $67K deepened the subsequent drawdowns, and the recovery path later traced by Bitcoin's 2023 pass back above $30K shows how much ground a concentrated market must retrace after a peak-year exit.
Third-order effects
- If the illiquid-share keeps rising across cycles, each boom-bust round is set against progressively less responsive supply — reinforcing the recurring pattern of extreme yearly swings (156% gains in 2023 per the $45K recovery coverage) and keeping the gap between Bitcoin's price narrative and its day-to-day usability, the core of the crypto legitimacy question, unresolved.
The trend: Bitcoin is settling into a repeating cycle of sharp boom-and-bust years in which a growing share of illiquid supply makes each peak higher and each drawdown steeper.