According to @ItsDave_ADA, only Bitcoin (BTC), Cardano (ADA), and XRP in the top 10 have a hard supply cap and thus fixed digital scarcity, while Solana (SOL) is inflationary, implying capped assets can compound value as demand rises. Source: https://twitter.com/ItsDave_ADA/status/1966946060598935669 Bitcoin’s supply is hard-capped at 21 million with programmed halvings that cut new issuance roughly every four years, limiting structural dilution. Source: https://bitcoin.org/en/faq Cardano’s ADA has a fixed maximum supply of 45 billion, with staking rewards emitted from reserves until the cap is reached, reinforcing a capped-supply profile. Source: https://iohk.io/en/blog/posts/2020/08/13/the-monetary-policy-of-cardano/ XRP’s total supply was created at genesis at 100 billion and cannot be increased, with small reductions from transaction-fee burns, confirming a non-inflationary supply. Source: https://xrpl.org/xrp.html Solana employs an inflation schedule that started near 8% annually and decays by 15% per year toward a long-term 1.5% rate, indicating no hard cap. Source: https://docs.solana.com/cluster/inflation However, BNB also enforces a maximum supply of 200 million with ongoing auto-burns targeting a 100 million terminal supply, so capped-supply designs extend beyond BTC, ADA, and XRP. Source: https://www.binance.com/en/bnb Trading takeaway: capped-supply assets reduce dilution from new issuance, but circulating float still changes via mechanisms like ADA reserve emissions and XRP escrow releases, which can affect short-term supply overhang and price elasticity. Source: https://iohk.io/en/blog/posts/2020/08/13/the-monetary-policy-of-cardano/ and https://ripple.com/insights/quarterly-xrp-markets-reports/