TheSkewLab

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Volatility Pulse

Will the next few minutes be calm or violent? A live forecast of short-horizon volatility for BTC and ETH — deliberately never direction, which the same research measured as untradable at these horizons. Use it to time entries into quiet windows and to get early warning while short premium.

as of 11:46:34 UTC · refreshes every 30s
BTC · next 5mCALM
P(move > 0.21%)
1%(0.0× base 10%)
Forecast bar sd
±0.05%
Last 5m bar moved
±0.01%
Supertrend (10,3)▲ UP · stop 64,488 (0.24% away · 40 bars)

Bottom-quintile forecast — big moves are historically rare here.

BTC · next 15mNORMAL
P(move > 0.36%)
3%(0.3× base 11%)
Forecast bar sd
±0.12%
Last 15m bar moved
±0.13%
Supertrend (10,3)▲ UP · stop 64,284 (0.56% away · 39 bars)

Mid-range forecast — nothing unusual priced into the next bar.

ETH · next 5mCALM
P(move > 0.30%)
1%(0.1× base 8%)
Forecast bar sd
±0.07%
Last 5m bar moved
±0.01%
Supertrend (10,3)▲ UP · stop 1,914 (0.34% away · 40 bars)

Bottom-quintile forecast — big moves are historically rare here.

ETH · next 15mCALM
P(move > 0.51%)
2%(0.2× base 9%)
Forecast bar sd
±0.15%
Last 15m bar moved
±0.04%
Supertrend (10,3)▲ UP · stop 1,907 (0.68% away · 39 bars)

Bottom-quintile forecast — big moves are historically rare here.

How traders use this

  • Entering premium sales: a CALM reading (bottom-quintile forecast) has historically meant a <1% chance of a big bar — the market is unlikely to run through your strikes while you leg in. Pair with the settlement-hour window on the Movement Odds page.
  • Defending short options: a jump to STORM is a measured early warning — big-bar odds in the top bucket ran 33–38% versus a ~9–11% base rate, out-of-sample. Not a prediction of direction; a prompt to check your risk.
  • What it is not: a trade signal. There are no 5-minute options, and chasing this with taker-fee futures scalps feeds the fee schedule, not you.

About the Supertrend row

Each card shows the classic Supertrend (10, 3) state for its timeframe — because many traders use it, and because it pairs naturally with the pulse: Supertrend is an ATR trailing stop, a volatility-scaled level that answers “where would I be wrong?”, and the pulse forecasts the very volatility that sets its width.

What our own backtest says: as a directional signal on this venue, Supertrend failed — 48 configurations across 5m–1h timeframes, and zero beat taker fees over 577 sessions (the least-bad variants only approached breakeven with maker fills and flip-only entries). We show the trend state and stop level as risk context: use the line to place and trail stops, not to predict the next move.

Does it tell the truth? (out-of-sample scorecard)

Each model was validated on a held-out chronological test set (~23k–72k bars per combination, 2.3 years of tape). The table shows the observed frequency of a “big bar” in each bucket of the model’s forecast — the same mapping the live gauges use, frozen at training time.

ModelOOS R²Rank ICBig bar =Base rateP(big | bottom decile)P(big | top decile)
BTC · 5m0.520.71>0.21%10.4%0.5%37.8%
BTC · 15m0.630.79>0.36%10.6%0.8%37.4%
ETH · 5m0.490.69>0.30%8.5%0.5%33.0%
ETH · 15m0.600.77>0.51%8.7%0.7%32.4%

Method: per-bar realized variance from 1-minute returns; HAR-style model (last bar, ~30-minute mean, ~4-hour mean, hour-of-day seasonality); chronological 70/30 split. Volatility clustering is the most replicated effect in market data — the skill here is real but ordinary; the honesty is showing you its exact calibration. Models trained through 2026-06-23 (BTC) / 2026-07-26 (ETH); see methodology.

Educational analytics, not investment advice. The pulse forecasts movement magnitude only — never direction — and can be wrong on any given bar. Probabilities are historical calibrations, not guarantees.