Bitcoin’s 4-year cycle: Will 2026 bring a new all-time high?

Bitcoin’s [BTC] four-year scarcity cycle drives its boom-bust swings.

Put simply, BTC’s price swings aren’t just on-chain flows, whale stacking, macro rotations, or regulatory tailwinds. Instead, they’re also baked into halving-driven supply shocks that power post-cycle rallies.

Heading into 2026, history signals a possible bearish tilt. After monster post-halving pumps in 2017, 2021, and 2025, BTC typically sees corrective pullbacks — 73% in 2018, 65% in 2022.

Source: TradingView (BTC/USDT)

Backing this, so far, Bitcoin’s tracking the historical pattern: Mid-2025 sees a 23% YTD gain after a 120% halving-year rally. That means scarcity is still king, driving the supply shock.

On-chain, daily issuance has slid to 400-500 BTC/day, down from 800-1000+ pre-2024 halving, reflecting Bitcoin’s programmed scarcity. Meanwhile, market cap has breached $2 trillion by mid-2025.

All told, the 2025 rally is riding this supply-demand squeeze. But can BTC carry the momentum into 2026, which historical cycles hint might lean bearish after the post-halving run?

4-year cycles in play: Will Bitcoin hit new highs?

Typically, Bitcoin follows a classic boom-bust cycle. 

After euphoric rallies, FUD creeps in, triggering sell-offs and deeper corrections. With limited demand left to absorb sky-high valuations, the market naturally retraces.

In short, demand shortfall drove the 2018 and 2022 drawdowns.

On-chain, exchange reserves popped 2-3 million BTC by early 2019, nearly 4 million in 2022, signaling heavy supply hitting the market amid corrections.

Source: CryptoQuant

However, even with inflated supply, demand couldn’t soak it up, fueling 60%+ annual drawdowns. 

Now, heading into 2026, BTC addresses in profit are overheating (classic cycle-top signal). However, exchange reserves are dipping, with nearly 20,000 BTC scooped this month.

If this supply-demand divergence holds, Bitcoin could break historical patterns and keep grinding higher, potentially entering a fresh price discovery phase in 2026.