Bitcoin is once again at one of those moments where history doesn’t repeat, but it sure does rhyme. Analysts are saying that the world’s biggest cryptocurrency is moving in ways that look eerily familiar to its past cycles. For seasoned investors, that’s both exciting and nerve-wracking as we head into the final stretch of the year.

Analyst Benjamin Cowen said that Bitcoin’s previous two cycles ran for about 1,060 days before hitting their peaks. Today, we’re sitting around day 1,016. In plain English: if history lines up, Bitcoin could be staring at a potential top sometime between October and December.

Here’s the catch: Bitcoin has never peaked in October before. Its past blow-off tops happened in November and December. But the timing of this current run puts October right in the spotlight, meaning the market is entering a window worth watching very closely.