$BTC
Ever heard of Stock-to-Flow (S2F)?
It’s the infamous Bitcoin price model that once ruled Crypto Twitter — created by a mysterious quant named PlanB.
S2F treats Bitcoin like gold:
Scarce asset = higher value over time.
It uses this formula:
S2F = Existing BTC Supply / New BTC Issued Yearly
Why it went viral?
PlanB's model predicted BTC would hit $100K post-2020 halving — and the market loved it.
What happened?
BTC followed the model… until it didn’t.
In 2021, it peaked near $69K — short of S2F’s $100K call.
Critics said the model failed. Supporters? Still believe it’s early.
Fast-forward to now:
PlanB still stands by his model, saying we may see 6-figure BTC in this cycle.
He also introduced S2FX — a version treating Bitcoin like it’s evolving asset classes (like gold, bonds, etc.).
Question for you:
Do you think Bitcoin still follows S2F logic — or has the market outgrown it?
Comment below
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