BitcoinBTC
Digital gold with a hard 21M cap.
The original cryptocurrency and the reserve asset of the crypto economy.
What Bitcoin is
Bitcoin is a peer-to-peer monetary network. New coins are issued on a fixed, diminishing schedule; transactions are settled in ~10-minute blocks by a global set of miners. There is no company, no CEO, no central server — only software that every full node runs and verifies.
Everything else in crypto — altcoins, DeFi, stablecoins — exists in a market that uses Bitcoin as the reference asset. When BTC moves, the rest of the market reacts.
Why it matters
- Hard cap of 21 million coins — a rule enforced by every node, not a promise.
- Halvings every ~4 years — block subsidy cuts in half, tightening supply. The most important macro event in the BTC calendar.
- Deepest crypto market — highest spot volume, largest derivatives open interest, the only asset with spot ETFs across major jurisdictions.
- Store-of-value narrative — the reason pension funds, corporates and sovereign wealth funds now hold it.
How to think about BTC
Think of BTC as the market's risk barometer. A decisive BTC trend usually drags altcoins along, then eventually lets them outperform in the "altseason" phase once BTC stabilises.
The on-chain framework to read BTC:
| Metric | What it tells you |
|---|---|
| MVRV | Is the market expensive or cheap vs its own cost basis? |
| NUPL | How much of the market cap is paper profit? |
| Realized Price | Where is the average on-chain cost basis? |
| SOPR | Are holders selling at a profit or at a loss? |
Risks and trade-offs
- Volatility — 50–80% drawdowns are normal inside a bull cycle, not an anomaly.
- Energy debate — PoW security has a real electricity footprint. This is a political risk more than a technical one.
- Regulation — spot ETFs are approved in the US and EU, but custody, taxation and accounting rules still vary widely.
- Not yield-bearing natively — holding BTC produces no yield. Any "BTC yield" product introduces counterparty risk.
What to watch on Exum
Open the BTC chart and layer:
- Price + EMA corridor for trend context
- MVRV / NUPL for cycle position
- SOPR for short-term profit-taking pressure
- Fear & Greed as a sentiment overlay
- Event Timeline to align price with halvings, ETF flows and macro prints