One year after 10/10 flash crash, bitcoin and ether liquidity have rebuilt, but altcoins still face risks

60-second summary
Bitcoin and ether order books now exceed pre‑crash depth, showing restored liquidity a year after the 10/10 flash crash, while altcoin markets continue losing depth and spot volumes stay far below the October 2025 peak; this divergence signals renewed confidence in major tokens but warns that weaker altcoins may face heightened volatility and reduced investor interest.
Bitcoin and ether order books are deeper than before the crash, while altcoin liquidity keeps eroding and spot trading remains well below its October 2025 peak.