Daily Alpha Brief — 2026-07-20 — SIDEWAYS regime across majors

Bayesian crypto brief for 2026-07-20: SIDEWAYS regime, strategy performance, weight shifts, and quant-vs-crowd sentiment across 9 symbols.

TL;DR

• Dominant regime: SIDEWAYS (0 bullish / 1 bearish of 9 symbols).
• Top signal: tsmom on BNB raised 0.316 (0.14 → 0.45).
• Shadow portfolio: $746 (-25.39%), 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 fear at 36/100; BTC dominance 58.7% signals balanced.

🌐 Market Overview

Economic (FRED):

Stablecoin dominance 11.2% (risk-off, money fleeing crypto); yield curve regime Flat.

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

Economic Calendar: Next FOMC: in 9 days | Next CPI: in 23 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 bearish: 0 BULL / 1 BEAR of 9 symbols.

🔗 Correlation Signals

Stable pairs (r > 0.70): BTC/SOL: r=0.87 ✅ | SOL/DOGE: r=0.86 ✅ | ETH/SOL: r=0.85 ✅ | SOL/XRP: r=0.84 ✅ | BTC/ETH: r=0.83 ✅ | BTC/DOGE: r=0.82 ✅

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):

Bollinger is the standout performer in this SIDEWAYS regime with 7d win_rate of 67% and Sharpe of 17.20 on 6 trades (just above the low-sample guard), earning a raise per rules 4 and 5; the ugly 24h Sharpe is a single-trade outlier and does not override the 7d signal. Volume_spike is cut hard: 7d win_rate of 26% and Sharpe of -2.93 on 39 trades triggers rule 2 (persistent underperformance with negative Sharpe), pulling it near the floor. Post_shock_reversal has a 7d win_rate of only 33% which is borderline, but positive 7d pnl of +214 and Sharpe of 9.18 on 67 trades indicate it is profitable overall despite low win_rate (a few large winners); as a mean-reversion strategy it is regime-aligned in SIDEWAYS, so I hold it near current with a modest trim to respect the sub-35% win_rate. Tsmom, rsi_macd, ema_cross, walk_forward_ema, correlation_strategy, and macro_strategy all have zero trades across both windows (rule 1 thin-data guard), so they are held near their current weights with no material moves; sentiment gets a small trim from its elevated current weight given weak confluence (33% on 24h, moderate 67% on 7d) and a near-neutral composite signal.

XRP/USDT (SIDEWAYS):

rsi_macd, ema_cross, walk_forward_ema, correlation_strategy, and macro_strategy all have zero trades on both windows, so rule 1 holds them near current weight with no meaningful move. Bollinger (1 trade, 100% win, +36.65 pnl) is thin data but gets a modest nudge up given SIDEWAYS regime alignment; the extreme Sharpe is an artifact of a single trade and is discounted. volume_spike fires rule 2 hard — 7d win rate of 26% with 58 trades is a large, reliable sample of persistent underperformance, so it is cut meaningfully despite the positive pnl (which reflects the Sharpe anomaly from skewed sizing) and despite the SIDEWAYS regime bump normally due to it. tsmom is cut further from its already-low 0.154 — 20% win rate on 5 trades with negative 7d Sharpe and negative pnl triggers rules 2 and 3, though the low trade count limits the move. post_shock_reversal’s 24h metrics look deceptively good but the 7d window (19 trades, 21% win, -2.01 Sharpe, -43.76 pnl) dominates and triggers rules 2 and 3, cutting it from 0.268 to 0.20. Sentiment stays near its current 0.644 — three sources with 67% confluence and a mildly positive composite is adequate but not outstanding, so a token trim to 0.64 is applied.

ETH/USDT (SIDEWAYS):

volume_spike is the standout performer with 61 7d trades, 33% win-rate but an extraordinary 9.30 Sharpe and +385 pnl, earning a raise despite the low win-rate; it also fits the SIDEWAYS regime bump. bollinger is penalised under rule 3 (7d Sharpe -0.83, negative pnl) despite being the regime-favoured strategy — the data overrides the prior per rule 6, so it is cut modestly from 0.454 to 0.38. tsmom has only 2 7d trades (rule 1 low-sample guard) but both metrics are deeply negative (0% win, -2.70 Sharpe, -45 pnl), justifying a cut toward 0.10; post_shock_reversal shows a very high Sharpe but only 9 trades and 44% win-rate, so a small raise to 0.28 is warranted without overcommitting. rsi_macd, ema_cross, walk_forward_ema, correlation_strategy, and macro_strategy all have zero 7d trades and are held near their current weights under rule 1; sentiment_strategy with 3 sources, 67% confluence, and modestly positive composite earns a slight trim from 0.641 to 0.62 reflecting neutral-to-mild signal strength.

📡 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 (bearish crowd).
• Macro signal (FT/Fed/CNBC): +0.11 (bullish) — “These underperforming trades could yield big returns over next six months”.

Most-talked alt: DOGE/USDT at +0.51 (bullish crowd lean).

📰 Today’s Key Reads

Curated from 4 sources monitored today:

⚠️ These underperforming trades could yield big returns over next six months — cnbc_finance — Score: +0.24

⚪ AI frenzy losing steam leaves bitcoin less volatile than South Korean stocks — coindesk — Score: -0.19

⚪ This $28 million ether market bet aims to profit from pure market chaos — coindesk — Score: -0.15

⚠️ The London IPO market isn’t as bad as it looks — ft_markets — Score: +0.13

⚪ Bitcoin slides toward $63,000 as Coinbase premium stays negative for a record 60 days — theblock — Score: -0.12

📈 System Architecture

The four-panel Bayesian fusion engine behind these daily decisions (shown Mondays). See Methodology.

Academic Footnote

Fang et al. (2020) — a survey of cryptocurrency trading strategies.

Disclaimer

This is algorithmic analysis only, not financial advice.