BTC.D = Bitcoin’s share of the total crypto market cap.
Formula (conceptually):
BTC market cap ÷ Total crypto market cap
If BTC.D is 55%, that means Bitcoin makes up 55% of the entire crypto market’s value.
What BTC.D tells you
It’s basically a risk appetite gauge for crypto:
Rising BTC.D
Money flowing into Bitcoin
Or money flowing out of altcoins
Usually = risk-off, uncertainty, or early bull market
Falling BTC.D
Capital rotating from BTC into alts
Usually = risk-on, confidence, alt season vibes 🚀
What is OTHERS.D (or OTHER.D)?
This one’s less standardized, but commonly:
OTHERS / OTHER.D
= Market dominance of all crypto excluding BTC and ETH
So it represents mid-caps + low-caps + micro-caps
Think of it as:
“How much appetite is there for speculative crypto risk?”
What OTHER.D tells you
Rising OTHER.D
Money flowing into smaller alts
Strong risk-on sentiment
Often late bull / alt season behavior
Falling OTHER.D
Capital leaving small caps first
Risk-off, fear, or consolidation
How BTC.D and OTHER.D interact (the key relationship)
They’re not perfectly inverse, but they usually pull against each other.
1. BTC.D ↑ → OTHER.D ↓ (most common)
This happens when:
Market is scared
BTC is seen as “safe haven crypto”
Alts bleed harder than BTC
📉 Alts underperform
📈 BTC holds up better
2. BTC.D ↓ → OTHER.D ↑ (alt season setup)
This is the classic alt season rotation:
BTC pumps first
BTC consolidates
Capital rotates into ETH
Then flows into OTHER (small & mid caps)
📉 BTC.D drops
📈 OTHER.D climbs fast
This is when:
Random alts start doing +50% in a week
Twitter gets loud
Risk management quietly leaves the chat 😅
3. Both BTC.D ↓ and OTHER.D ↓ (rare but important)
This usually means:
ETH dominance is rising
Capital rotating mainly into ETH
Often seen before broader alt expansion
ETH acts as a “bridge asset” between BTC and alts.
4. Both BTC.D ↑ and OTHER.D ↑ (also rare)
This can happen if:
Total market cap is shrinking fast
ETH is getting sold harder than both BTC and small caps
Usually a stress event, not bullish.
How traders actually use these together
Common macro framework
BTC.D trend up → Favor BTC, avoid small caps
BTC.D topping / breaking down → Watch ETH
ETH.D strong + BTC.D falling → Prepare for alt season
OTHER.D breaking structure up → Small-cap season is on 🔥
Simple rule of thumb
BTC.D = fear vs safety
OTHER.D = greed vs speculation
