Daily Alpha Brief — 2026-10-23 — SIDEWAYS regime across majors

Bayesian crypto brief for 2026-10-23: SIDEWAYS regime, strategy performance, weight shifts, and quant-vs-crowd sentiment across 9 symbols.

TL;DR

• Dominant regime: SIDEWAYS (2 bullish / 1 bearish of 9 symbols).
• Top signal: rsi_macd on BNB cut 0.280 (0.62 → 0.34).
• Shadow portfolio: $714 (-28.58%), 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 49/100; BTC dominance 60.0% signals balanced.

🌐 Market Overview

Economic (FRED):

Stablecoin dominance 9.2% (risk-on); yield curve regime Flat.

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

Economic Calendar: Next FOMC: in 5 days | Next CPI: in 21 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 / 1 BEAR of 9 symbols.

🔗 Correlation Signals

Stable pairs (r > 0.70): SOL/SUI: r=0.93 ✅ | ETH/SOL: r=0.93 ✅ | SOL/XRP: r=0.91 ✅ | WIF/SUI: r=0.91 ✅ | SOL/WIF: r=0.91 ✅ | DOGE/SUI: r=0.90 ✅

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

BNB/USDT (SIDEWAYS):

SIDEWAYS regime punishes momentum strategies and the data confirms it severely: rsi_macd (29% win, -1.02 Sharpe, -31.71 pnl), ema_cross (31% win, -0.55 Sharpe), tsmom (30% win, -2.99 Sharpe), and volume_spike (28% win, -7.17 Sharpe, -219.68 pnl) all breach rule 2/3 thresholds and are cut hard, with volume_spike pushed near floor on its catastrophic pnl. Bollinger is the standout mean-reversion winner (44% win, 8.58 Sharpe, +208.25 pnl) and earns a raise per rule 4 and SIDEWAYS alignment, while post_shock_reversal also shows positive 7d Sharpe and pnl (+157.59) befitting its mean-reversion nature in ranging conditions, so it is held near its current weight with a modest trim for the weak 24h. walk_forward_ema gets a neutral hold near 0.50 given thin 7d trades (12) triggering rule 1 caution; sentiment is nudged down slightly on low confluence (33%) and near-zero composite; correlation_strategy and macro_strategy report zero trades and are held near their current weights per the no-data guidance.

BTC/USDT (SIDEWAYS):

volume_spike is the only price-based strategy with positive 7d metrics (Sharpe 1.68, pnl +55.83, 58 trades) in this SIDEWAYS regime and earns a modest raise from 0.844; its 24h collapse is noted but the 7d window dominates per the rubric. bollinger is the regime-favoured mean-reversion strategy but its 7d numbers are deeply negative (27% win, Sharpe -7.93, pnl -174) — rule 3/2 overrides the SIDEWAYS prior and forces a meaningful cut from 0.571. rsi_macd and walk_forward_ema both have very thin 7d samples (2 and 10 trades respectively) combined with negative Sharpe and pnl, so they are nudged modestly lower but not slashed aggressively. post_shock_reversal has 90 7d trades and 27% win with negative Sharpe and pnl, triggering rule 2/3 and a cut from 0.545; sentiment_strategy is pulled toward neutral because 7d confluence dropped to 33% despite decent 24h coverage, signalling contradictory lanes.

WIF/USDT (SIDEWAYS):

Most strategies have zero trades in both windows (rule 1 thin-data guard), so their weights are held at or within a negligible nudge of current levels. post_shock_reversal is the exception: 7d win_rate of 16% with a deeply negative Sharpe (-3.21) and negative pnl (-193.46) across 37 trades triggers rule 2 (persistent underperformance) and rule 3 (negative risk-adjusted return), justifying a cut from 0.429 to 0.19. volume_spike has an anomalously high Sharpe (9.03) but only a 33% win-rate on 63 trades with positive pnl; the Sharpe figure is suspicious given the low win-rate, suggesting skewed returns rather than consistent edge, so I trimmed it modestly from 0.697 to 0.62 rather than rewarding it under rule 4. Sentiment coverage is sparse (2 sources, 50% confluence, near-zero composite), warranting a small reduction from 0.377 to 0.36; bollinger gets a token +0.01 nudge for SIDEWAYS regime alignment with no contradicting data.

📡 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: +0.00 (neutral crowd).
• Macro signal (FT/Fed/CNBC): -0.03 (neutral) — “IMF warns bond yields could see a ‘disorderly’ spike as debt, inflation risks worsen”.

Most-talked alt: XRP/USDT at +0.55 (bullish crowd lean).

📰 Today’s Key Reads

Curated from 3 sources monitored today:

🟢 XRP Ledger bug fix moved to November after validator support dipped for two hours — coindesk — Score: +0.60

⚠️ Would you take out a mortgage backed by bitcoin? — ft_markets — Score: +0.54

🟢 Solana’s biggest network change since 2020 is live. Here’s how users benefit — coindesk — Score: +0.46

🟢 Layer 2 Scaling Solutions — theblock — Score: +0.34

🟢 Bitcoin ETFs draw $528 million as ether funds snap five-day outflow streak — theblock — Score: +0.32

Academic Footnote

Miralles-Quirós (2022) — post-shock reversals in digital assets.

Disclaimer

This is algorithmic analysis only, not financial advice.