Daily Alpha Brief — 2026-10-22 — SIDEWAYS regime across majors

Bayesian crypto brief for 2026-10-22: SIDEWAYS regime, strategy performance, weight shifts, and quant-vs-crowd sentiment across 9 symbols.

TL;DR

• Dominant regime: SIDEWAYS (2 bullish / 0 bearish of 9 symbols).
• Top signal: walk_forward_ema on SOL raised 0.340 (0.30 → 0.64).
• Shadow portfolio: $717 (-28.34%), 0 open, 35% win rate.

Shadow portfolio value since inception (dashed line = $1,000 starting capital).

Current Bayesian reliability weights, averaged across the universe.

Detected regime per symbol (EMA200 + ADX); % = lead-strategy conviction.

🌐 Market Indices

Crowd reads neutral at 56/100; BTC dominance 60.2% signals balanced.

🌐 Market Overview

Economic (FRED):

Stablecoin dominance 8.9% (risk-on); yield curve regime Flat.

Funding Rates (contrarian — heavy positive = crowded longs to fade):

Economic Calendar: Next FOMC: in 6 days | Next CPI: in 22 days | position-size modifier 1.00×.

📊 Regime Analysis

Regime per symbol from EMA200 + ADX on daily candles, with the fusion signal.

The book is broadly bullish: 2 BULL / 0 BEAR of 9 symbols.

🔗 Correlation Signals

Stable pairs (r > 0.70): SOL/XRP: r=0.94 ✅ | SOL/SUI: r=0.93 ✅ | ETH/SOL: r=0.92 ✅ | WIF/SUI: r=0.92 ✅ | DOGE/WIF: r=0.91 ✅ | BTC/SOL: r=0.91 ✅

Index signals: BTC dominance NEUTRAL → no rotation; Fear & Greed contrarian NONE.

⚙️ Strategy Performance

Aggregate 7-day performance per strategy (replayed across the universe). Edge = win-rate × avg P&L per trade — the table is sorted by it.

All P&L figures normalized to a 100 USDT position size for comparability (not summed across symbols).

🧠 Bayesian Weight Shifts

SOL/USDT (BULL):

In a confirmed BULL regime, rsi_macd’s 7d win-rate of 34% is below 40% but its positive Sharpe (3.25) and pnl (+175) keep it viable — I reduced it modestly from 0.726 as the sub-50% win-rate conflicts with a premium weight, applying rule 3’s inverse (positive Sharpe prevents a deep cut). Bollinger’s 7d win-rate (37%) and strongly positive Sharpe (8.91) and pnl (+380) are impressive in isolation, but the BULL regime is a headwind for mean-reversion per rule 5/6, so I trim it from 0.525 toward 0.45. ema_cross shows a deceptive 75%/32.95 Sharpe in 24h but its 7d win-rate collapses to 32% — the data wins over the 24h noise (rule 6), and I hold near current; volume_spike’s 7d win-rate of 31% with negative 24h Sharpe earns a reduction; tsmom, correlation_strategy, and macro_strategy all have zero trades across both windows triggering rule 1 (held within ±0.05 of current); post_shock_reversal’s 24h is badly negative but 7d Sharpe is high with positive pnl — contradictory signals and BULL regime headwind for mean-reversion keep it near current; sentiment_strategy has full source coverage and 100% confluence but near-zero composite signal, so I hold it slightly above neutral.

BNB/USDT (SIDEWAYS):

volume_spike is the clearest action item: 7d win-rate of 27% with a deeply negative Sharpe (-8.07) and large negative pnl (-257) triggers rule 2/3 for a hard cut toward 0.15 despite a decent 24h surface; the 7d window dominates. ema_cross and tsmom are momentum strategies struggling in a SIDEWAYS regime (ema_cross 7d win 32%, negative 24h Sharpe; tsmom 7d win only 40% with moderate metrics), so both are trimmed per regime alignment and rules 2-3. post_shock_reversal is a mean-reversion family strategy well-suited to SIDEWAYS, with strong 7d pnl (+529) and the highest 7d Sharpe among price-based strategies (12.65), justifying a modest raise to 0.62; walk_forward_ema retains a near-current weight of 0.60 on solid 7d Sharpe (4.21) and positive pnl despite thin trade count (rule 1 caution applied). rsi_macd is trimmed from its elevated 0.712 because despite a high 7d Sharpe its 7d win-rate is only 42% and it is a momentum-leaning strategy in a ranging market; sentiment_strategy is lowered modestly given near-zero composite signal and zero 7d confluence, while correlation_strategy and macro_strategy hold near current weights as they report no active signals.

XRP/USDT (SIDEWAYS):

volume_spike is the clearest cut: 7d win-rate of 21% with a deeply negative Sharpe (-4.02) and negative pnl triggers rules 2-3 hard, so it is reduced from 0.411 to 0.15 (near the floor); walk_forward_ema similarly shows 12% win-rate, negative 7d Sharpe (-1.38), and negative pnl warranting a meaningful reduction from 0.479 to 0.32. post_shock_reversal has positive pnl (+469 7d) and a high Sharpe but only 36% win-rate — the elevated Sharpe is suspicious on 42 trades with sub-30%-adjacent win-rate, so a modest reduction from 0.431 to 0.38 is applied rather than a raise; sentiment_strategy gets a small bump to 0.62 given 100% confluence across 3 sources though the near-neutral composite (+0.02) caps any larger increase. All zero-trade strategies (rsi_macd, bollinger, ema_cross, tsmom, correlation_strategy, macro_strategy) are held within ±0.05 of their current weights per rule 1, with a token SIDEWAYS nudge keeping bollinger marginally above its current level.

📡 Signal Outlook

💼 Shadow Portfolio

$1,000 USDT paper portfolio, 1% risk/trade, MEXC fees modelled. No real capital is deployed.

📡 Discourse Radar

Crowd-vs-quant sentiment from CryptoCompare news, crypto RSS, the macro feeds (FT / Fed / CNBC), and the Fear & Greed index. (Reddit retired — Responsible Builder Policy restrictions, 2026.)

• Fear & Greed: +0.50 (bullish crowd).
• Macro signal (FT/Fed/CNBC): +0.01 (neutral) — “IMF warns bond yields could see a ‘disorderly’ spike as debt, inflation risks worsen”.

Most-talked alt: WIF/USDT at +0.50 (bullish crowd lean).

📰 Today’s Key Reads

Curated from 3 sources monitored today:

🟢 Dogecoin Labs launches as DOGE ecosystem seeks growth beyond meme-driven demand — theblock — Score: +0.30

🟢 Swiss regulator FINMA approves country’s first spot bitcoin ETF for retail investors — theblock — Score: +0.24

⚪ Live updates: Bitcoin rises to $84,000, but rally cut short by Middle East worry — coindesk — Score: -0.16

⚪ Ripple brings Wall Street into 24/7 stock bets, but HSBC warns markets are still thin — coindesk — Score: -0.15

⚠️ Williams says Fed may not have to hike rates in 2027, at odds with traders — cnbc_finance — Score: +0.12

Academic Footnote

Shen et al. (2021) — time-series momentum in cryptocurrency markets.

Disclaimer

This is algorithmic analysis only, not financial advice.