Market indicators suggest potential momentum for altcoins outside the top 10 cryptocurrencies, though leverage accumulation presents significant risks to the rally's longevity.
Signs of Capital Rotation
Bitcoin dominance opened September lower after being rejected at the 60% level. During the same period, the total market cap of altcoins outside the top 10 increased more than 10% from the month's start, breaking above the $200 billion level and clearing the mid-May resistance zone. This pattern reflects capital moving from Bitcoin into smaller coins.
Leverage Concerns
Altcoin open interest has now exceeded Bitcoin open interest for the first time since December 2024. That period saw the total crypto market cap reach approximately $3.91 trillion before significant liquidations occurred. On December 9, the market experienced over $1.5 billion in liquidations, with roughly $1.38 billion from long positions. Altcoin open interest relative to market cap increased from 3.57% to 4.42%, then fell to 3.96% as liquidations wiped out over $12.8 billion in altcoin open interest.
Altcoin open interest relative to market cap has since expanded to 4.42%, indicating traders are taking increasingly aggressive positions while leverage accumulates rapidly.
The Critical Level
The altcoin market cap outside the top 10 approaches a critical $220–$230 billion rejection zone. With Bitcoin's $80,000 level acting as an obstacle and Bitcoin dominance declining, a failed breakout at this level could trigger a broad market selloff, particularly given the leveraged long positions already in place.
For an altcoin cycle to take hold, the market must sustain gains above this threshold. A reversal of the leverage trend before spot demand absorbs the positions could result in significant liquidations.
