Daily Alpha Brief — 2026-07-08 — SIDEWAYS regime across majors

Bayesian crypto brief for 2026-07-08: SIDEWAYS regime, strategy performance, weight shifts, and quant-vs-crowd sentiment across 9 symbols.

TL;DR

• Dominant regime: SIDEWAYS (0 bullish / 4 bearish of 9 symbols).
• Top signal: volume_spike on ETH cut 0.148 (0.65 → 0.50).
• Shadow portfolio: $771 (-22.86%), 0 open, 36% 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 28/100; BTC dominance 58.2% signals balanced.

🌐 Market Overview

Economic (FRED):

Stablecoin dominance 11.4% (risk-off, money fleeing crypto); yield curve regime Flat.

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

Economic Calendar: Next FOMC: in 21 days | Next CPI: in 7 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 / 4 BEAR of 9 symbols.

🔗 Correlation Signals

Stable pairs (r > 0.70): BTC/ETH: r=0.87 ✅ | DOGE/SUI: r=0.82 ✅ | BTC/BNB: r=0.81 ✅ | BTC/XRP: r=0.80 ✅ | ETH/DOGE: r=0.80 ✅ | ETH/BNB: r=0.79 ✅

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 (BEAR):

Most strategies have zero trades across both windows (rule 1: keep within ±0.05 of current weight). volume_spike has robust 7d data (87 trades, 30% win, +231.94 pnl, Sharpe 4.76) but the 24h window is alarming (8% win, Sharpe -32.30, -203.95 pnl), indicating a sharp recent deterioration; the 7d Sharpe is positive but win-rate is at the rule-2 borderline (30%), so I trim modestly from 0.65 to 0.55 rather than reward it. post_shock_reversal has 30 7d trades but a 23% win-rate (below the 30% threshold) and negative 24h metrics across both trades, so I cut it toward 0.30 per rule 2. sentiment_strategy shows good 7d source coverage (4 sources, 75% confluence) with mild positive composite, warranting a small hold near its current weight, trimmed only slightly to 0.65 to reflect the BEAR regime’s mild tension with a bullish composite signal.

XRP/USDT (SIDEWAYS):

Most strategies have zero trades on both windows (rule 1), so I hold them within +/-0.03 of their current weights to avoid chasing noise. volume_spike is the clear cutter: 7d win-rate of 24% with a deeply negative Sharpe (-2.46) and negative pnl across both windows triggers rules 2-3, bringing it down from 0.347 to 0.19. post_shock_reversal shows a paradox — very high Sharpe (7.67) but only 29% win-rate on 76 trades, suggesting a few large wins and many small losses; in a SIDEWAYS regime this mean-reversion strategy is regime-aligned, but the sub-30% win-rate prevents a full rule-4 boost, so I apply a measured cut from 0.633 toward 0.58 per rule 2 while respecting the positive pnl. sentiment_strategy has solid 7d coverage (4 sources, 75% confluence, mildly positive composite) warranting a small hold near its current weight, nudged slightly down to 0.68 on the modestly weak signal strength.

SOL/USDT (SIDEWAYS):

Bollinger has a strong 7d Sharpe (5.84) and positive pnl (+193) but only 35% win-rate, which triggers rule 3 (negative/borderline win-rate) and rule 2 concern — the high Sharpe is real but the win-rate is below 40%, so I trim it modestly from 0.656 to 0.58 rather than raise it, also aligned with SIDEWAYS regime favour. Volume_spike has an excellent 7d record (7.67 Sharpe, +394 pnl, 67 trades) but the 24h window is severely negative (0% win, -15.42 Sharpe, -113 pnl), indicating a recent deterioration; I apply a small cut from 0.721 to 0.68 as a caution nudge per rule 3 on the short window. Walk_forward_ema hits rule 1 (only 2 trades, 7d) combined with a deeply negative Sharpe (-12.05) and large loss (-94.57), so I cut it toward 0.10 per the low-sample guard blended with the negative signal. Sentiment_strategy shows good 7d coverage (4 sources), positive composite (+0.10), and solid confluence (75%), warranting a slight raise to 0.68; all zero-trade strategies (rsi_macd, ema_cross, tsmom, correlation_strategy, macro_strategy) are held near their current weights under rule 1, and post_shock_reversal stays low given zero trades and its mean-reversion character in a non-shock SIDEWAYS context.

📡 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: -1.00 (bearish crowd).
• Macro signal (FT/Fed/CNBC): +0.06 (neutral) — “SpaceX to join the Nasdaq-100 in a fast-tracked process that will drive huge ETF buying demand”.

Most-talked alt: WIF/USDT at -1.00 (bearish crowd lean).

📰 Today’s Key Reads

Curated from 3 sources monitored today:

🟢 Ripple secures full MiCA CASP authorization for crypto services across 30 EEA countries — theblock — Score: +0.61

🟢 Grayscale says Strategy’s recent bitcoin sales should restore confidence in its financing structure — theblock — Score: +0.57

🟢 XRP rises 3% as $1.14 breakout turns into support test — coindesk — Score: +0.48

🟢 Bitmine added another $74 million in ether as Tom Lee bets on Clarity Act boost — coindesk — Score: +0.47

⚠️ SpaceX to join the Nasdaq-100 in a fast-tracked process that will drive huge ETF buying demand — cnbc_finance — Score: +0.25

Academic Footnote

Krauss (2017) — statistical arbitrage pairs trading.

Disclaimer

This is algorithmic analysis only, not financial advice.