Daily Alpha Brief — 2026-07-29 — SIDEWAYS regime across majors

Bayesian crypto brief for 2026-07-29: 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: walk_forward_ema on ETH raised 0.363 (0.24 → 0.61).
• Shadow portfolio: $745 (-25.48%), 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 35/100; BTC dominance 58.6% signals balanced.

🌐 Market Overview

Economic (FRED):

Stablecoin dominance 11.3% (risk-off, money fleeing crypto); yield curve regime Flat.

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

Economic Calendar: Next FOMC: in 0 days | Next CPI: in 14 days | position-size modifier 0.60×.

📊 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): ETH/SOL: r=0.88 ✅ | BTC/ETH: r=0.87 ✅ | BTC/SOL: r=0.82 ✅ | ETH/BNB: r=0.81 ✅ | ETH/XRP: r=0.80 ✅ | SOL/SUI: r=0.78 ✅

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

ETH/USDT (SIDEWAYS):

rsi_macd, ema_cross, tsmom, correlation_strategy, and macro_strategy all have zero 7d trades, so rule 1 applies and weights are held at current. bollinger has only 3 7d trades (rule 1 guard), but its 7d Sharpe of 2.44 and positive pnl in a SIDEWAYS regime justify a token hold near current rather than a cut despite the ugly 24h candle; kept at 0.38. volume_spike has 77 7d trades with a 35% win-rate — below 40% but not below 30% — and an anomalously high reported Sharpe (10.46) alongside positive pnl; rule 2 does not fully fire but persistent sub-50% win-rate in a ranging market warrants a modest reduction from 0.748 to 0.65. post_shock_reversal shows 34% 7d win-rate (borderline rule 2) with a high Sharpe artifact and positive pnl; the 24h 71% win is encouraging but only 7 trades, so a small conservative trim to 0.55 is applied. walk_forward_ema has only 1 7d trade (rule 1), held near current at 0.25. sentiment_strategy has 3-source coverage with weak 7d confluence (33%) and near-neutral composite, warranting a mild reduction from 0.536 toward neutral at 0.50 per sentiment weighting rules.

SUI/USDT (SIDEWAYS):

Bollinger has the most data (42 trades 7d) but its 29% win rate triggers rule 2 (persistent underperformance below 30%), requiring a cut of at least 0.10 from its inflated 0.741; however SIDEWAYS regime alignment partially offsets this, landing it at 0.62 — still the highest due to regime fit but meaningfully reduced for the poor win rate. Volume_spike has 59 7d trades with 25% win rate and negative Sharpe (-0.71) and negative pnl, triggering rules 2 and 3, so it is cut to 0.15. walk_forward_ema has only 1 trade on 7d (rule 1 thin data), but that single trade shows a deeply negative Sharpe (-9.11) and negative pnl, justifying a small cut to 0.18 within the low-sample guard. post_shock_reversal also has only 3 7d trades (rule 1), so it is held near current weight with a slight trim to 0.15 reflecting 33% win rate; rsi_macd, ema_cross, tsmom, correlation_strategy, and macro_strategy all report zero trades and zero activity so they are held at their current weights per rule 1, while sentiment_strategy is nudged down slightly to 0.43 reflecting sparse coverage (2 sources) and weak 50% confluence.

BTC/USDT (SIDEWAYS):

Most strategies have zero trades in both windows (rule 1 low-sample guard), so I hold them within +/-0.03 of their current weights rather than chase noise; the SIDEWAYS regime nudges bollinger marginally up and tsmom/ema_cross stay near current. volume_spike has 36 7d trades but a 22% win-rate well below 30%, triggering rule 2 — however it is already at a low 0.175 so I hold it flat rather than cut further into the floor. post_shock_reversal shows a strong positive pnl (343.87) and a high Sharpe on 7d but the 40% win-rate is below the rule-4 threshold of 55%, and its outsized Sharpe likely reflects a skewed payout distribution, so I give it only a modest +0.02 nudge consistent with its mean-reversion alignment in a SIDEWAYS regime. sentiment_strategy reports 3-source coverage with 67% confluence and a mildly positive composite both on 24h and 7d, which is adequate but not exceptional, so I trim it slightly from 0.646 toward 0.63 to reflect the weak directional signal without a large move.

📡 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): +0.05 (neutral) — “Shortsighted stock market can no longer brush off war: ‘It’s too hard to ignore $100 oil’”.

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

📰 Today’s Key Reads

Curated from 3 sources monitored today:

🟢 Morgan Stanley debuts ether, solana exchange-traded products after bitcoin fund success — coindesk — Score: +0.57

🟢 Bitmine adds nearly 10,000 ETH while repurchasing 6.1 million common shares — theblock — Score: +0.30

🔴 Lido begins moving $16.5 billion in staked ether to cut validator count by a third — coindesk — Score: -0.27

🟢 Ionic Digital jumps 25% in Nasdaq debut after expanding Celsius bitcoin mining assets into AI infrastructure — theblock — Score: +0.23

⚠️ Shortsighted stock market can no longer brush off war: ‘It’s too hard to ignore $100 oil’ — cnbc_finance — Score: +0.18

Academic Footnote

Care & Cumming (2024) — algorithmic trading and crypto market quality.

Disclaimer

This is algorithmic analysis only, not financial advice.