- Bitcoin is on track to close September with a rare positive gain of 4.5 percent.
- Historically, a green September has preceded an average Q4 rally of more than 50 percent.
- If the pattern holds, Bitcoin could be looking toward roughly $170,000 by year-end.
In a powerful and unusual reversal of its own gloomy reputation, Bitcoin is one step away from closing the books on September with a positive result.
That is no small feat. September has long been the harshest month on the crypto calendar, a steady sea of red that earned it the ominous nickname “Red September.”
This year, however, a 4.5% gain has flipped the narrative and may have just lit the fuse for a potentially explosive rally in the final quarter of the year.
Charts point to a recurring pattern
History doesn’t repeat exactly, but it often rhymes. In Bitcoin’s world, the rhyme of a green September can be a powerful omen.
According to historical data, in the rare instances when Bitcoin finished September in the green—in 2015, 2016, 2023 and 2024—the final quarter of the year produced spectacular returns, with average gains exceeding 53 percent.
In those instances, Q4 returns ranged from a substantial 45 percent to an astonishing 66 percent.
If that historical pattern repeats this year, Bitcoin could be eyeing the neighborhood of $170,000 before the calendar turns to 2026.
Data show October typically acts as a launchpad for these powerful moves, with an average gain of 21.8 percent, while November often carries the momentum forward.
This seasonal effect has been especially pronounced in years following a Bitcoin halving, when a potent mix of fresh capital inflows and market positioning combine to drive assets into a new phase of price discovery.
On-chain view: a bullish tide is turning
The seasonal setup is not just a statistical quirk; it’s actively supported by deeper on-chain currents.
Key on-chain indicators are now signaling green, pointing to a meaningful and potentially durable shift in market dynamics.
The Cumulative Delta Volume for Spot Takers (CVD), an important metric that tracks the difference between market buy volume and market sell volume, has turned positive over a 90-day period for the first time since mid-July.
That is a clear, direct signal of a “Taker Buy Dominant Phase,” a period where buying pressure decisively outweighs selling pressure.
At the same time, the Coinbase premium index highlights steady and aggressive accumulation by U.S. investors throughout the third quarter.
The alignment of these two key on-chain measures strengthens the view that a new wave of buying momentum is not merely approaching—it’s already underway.
The stage is set, signals are lining up, and the final quarter of the year could once again prove decisive and explosive for the world’s leading digital asset.