The story today isn't in the index — it's in how little the index has to do with anything. Realized 20-day stock correlation printed 3.24%, the lowest reading since our history begins in 2020, with the market factor accounting for just 2.7% of cross-sectional variance. Underneath that placid surface, single stocks are trading almost entirely on their own news, and idiosyncratic risk drove roughly 76% of the day's cross-sectional variance.
SPY is up only +0.21% and QQQ +0.73%, and that stillness is the whole point: the average pair of stocks has almost stopped moving together. The options market is priced for exactly this. Implied single-stock correlation (Cboe COR1M) sits at 5.94, near the bottom of its 20-year history, and implied dispersion (Cboe DSPX) at 47.12 is pinned close to a six-year high. Single-stock implied volatility (Cboe VIXEQ) is elevated at 50.43 while index volatility, the VIX, holds a middling 17.99 — the classic signature of a market where the names are loud and the index is quiet. Of today's factor set, Liquidity carries the sharpest daily conviction at z=+2.74, and the highest-turnover, most heavily optioned names led it — read that as options flow, call-buying and dealer hedging into the most optionable single names, rather than a fundamental liquidity move.
| Factor | Return | Z-Score | 5d Z | 20d Z | 63d Z | Category | Direction |
|---|---|---|---|---|---|---|---|
| Liquidity | +0.80% | z=+2.7 | +0.1 | -1.4 | -0.3 | Style | Highest-turnover, optionable names bid |
| Residual Volatility | +0.78% | z=+1.5 | -0.4 | -0.2 | +0.0 | Style-Risk | Higher-vol names outperformed |
| Oil | +0.76% | z=+1.5 | +0.2 | +0.1 | +0.2 | Thematic | Oil-levered names outperformed |
| Bitcoin / Crypto | +0.45% | z=+1.5 | -0.1 | -0.5 | -0.6 | Thematic | Crypto-levered names outperformed |
| Treasury (Duration) | -0.48% | z=-1.4 | +0.3 | +0.2 | -0.8 | Thematic | Long-duration names lagged |
| Short Interest | -0.21% | z=-1.2 | +0.0 | +1.7 | +1.2 | Style-Positioning | High-short-interest names lagged |
| Series | Today Pct | Prev Close Pct |
|---|---|---|
| pairwise_model | 3.24 | 3.53 |
| pairwise_top500 | 5.09 | 6.25 |
| implied_cor1m |
Look at the leaders and there is no common thread — which is precisely what record-low correlation looks like from the bottom up. AMC's record-revenue quarter and surprise adjusted profit drove the shares +25.52%, an almost entirely stock-specific move.Economic Times Archer Aviation ripped +20.33% after unveiling a military eVTOL craft built with Anduril, its largest stock-specific move in at least a year.CNBC IREN jumped +21.51% on $2.8 billion of AI-cloud contracts.Economic Times Alibaba added +5.83%, again almost all its own move, as Moonshot AI's large-model success pulled China's internet names higher — FXI +3.18%, KWEB +2.97%.Bloomberg
The downside has the same one-off character: HDFC Bank fell -10.29% on earnings as leading Indian private sector banks slump. And beware the tempting narrative: Micron's +4.53% reads like a memory-chip demand story, but the move is carried by the day's Residual Volatility and beta complex, not anything company-specific. The semiconductor bounce (SMH +1.24%) is a factor tide lifting oversold names, not a fundamental re-appraisal.
| ETF | Theme | Today | 1d Ago | 5d Ago | 20d Ago | 63d Ago |
|---|---|---|---|---|---|---|
| WGMI | crypto miners | +11.86% | -1.10% | -14.29% | -30.80% | +2.13% |
| KWEB | china internet | +2.97% | -2.44% | +1.63% | +5.63% | -10.93% |
| DRAM | memory chips | +2.58% | +0.73% | -16.37% | -24.63% | +50.46% |
| SMH | semiconductors | +1.24% | -2.18% | -8.92% | -10.81% | +22.37% |
| XLE | energy | +1.10% | +1.16% | +4.72% | +5.51% | +1.94% |
| KRE | regional banks | -1.03% | -1.58% | +2.23% | +7.79% | +11.42% |
| XHB | homebuilders | -1.98% | -2.30% | -0.33% | +0.86% | +5.75% |
| VXX | volatility | -3.28% | +4.80% | +6.39% | -4.50% | -23.28% |
This is where the proprietary structure earns its keep. A flat index with wild single names could just be a benign stock-pickers' market — but the factor decomposition says something more forceful is happening. Style factors account for 34% of 20-day cross-sectional variance, the 92nd percentile, led by Beta (about 20% of the total) and Long-Term Momentum (6%). That is the fingerprint of the high-beta momentum de-risking that has run through July: Goldman's high-beta momentum factor has fallen 33% from its late-June peak, and systematic funds have handed back roughly a quarter of their 2026 gains as tech-heavy baskets came apart.Bloomberg When the most-held factor is being sold down, index-level moves cancel out and the action migrates into the style and single-name axes — correlation collapses as a mechanical consequence.
| Series | Today Vol Pts | Prev Close Vol Pts |
|---|---|---|
| total | 46.70 | 47.53 |
| market | 7.70 | 8.19 |
| style | 27.20 | 27.65 |
The honest complication is that today, for once, the pressure eased. The top-50 high-beta momentum names rose +2.54% — a good session, ranking 286th of 1,643 days since 2020 — after being marked down hard on July 16 and July 13. The VIX fell to 17.99 and VXX dropped -3.28%; oversold thematic baskets from crypto miners (WGMI +11.86%) to memory (DRAM +2.58%) snapped back. So the record-low correlation sits inside a tape that felt more like relief than distress. The tell that the factor churn is real, not spent, is the gap between a style realized vol near stress levels (27.2 points) and an index realized vol at the 0.2nd percentile (7.7 points): the rotation underneath is violent even as the surface is calm.
| Series | Ret Pct |
|---|---|
| joint | 0.70 |
| tight50 | 2.54 |
| market | 0.01 |
| rest | -0.25 |
Rates are the one place correlation still binds. The 10-Year Treasury yield rose 5.9 bps to 4.60%, with the long end up a touch more (30-Year at 5.12%, +5.5 bps) than the 2-Year at 4.22% — a mild bear steepener.CNBC The Treasury duration factor at z=-1.4 reflects it: long-duration names lagged, TLT fell -0.78%, and the rate-sensitive corners took the clearest hits — homebuilders XHB -1.98% and ITB -1.95%, regional banks KRE -1.03%. The dollar firmed 0.19% to 100.95, a modest headwind for commodities.CNBC Oil held a small bid — the Oil factor at z=+1.5, XLE +1.10% — with the Strait of Hormuz tanker strike and U.S.-Iran escalation keeping a risk premium in energy names.Bloomberg For a PM, the book to check is anything short single-stock volatility or long index correlation: with DSPX pinned near a six-year high and COR1M near two-decade lows, that trade is as crowded as it has been in years.
Variance decomposition: live intraday — 20260720 session, bracketed against its trailing-year range. Factor returns are trailing through last close. Total cross-sectional dispersion: 14%ile of the past year.
Variance mix — % of total, today vs 1d ago vs 1-yr avg
market 0.0%ile style 65%ile thematic 90.4%ile idiosyncratic 51%ile
Variance explained — today vs. factor's trailing-year range
Marker = the factor's share of today's total variance, placed in its own trailing-year range (box 25–75%ile, ticks 90%ile and max). Amber marker = unusually load-bearing today (≥90%ile of its own year). Factor name green = up today / red = down.
Correlation & dispersion — realized vs implied
Pairwise realized correlation (20d): 3.24% 0.0%ile record low since 2020
Top-500 pairwise: 5.09% 0.2%ile · implied (Cboe COR1M): 5.94 0.5%ile of its own history (gap -0.8pp)
Realized 20d vol (ann. pts): all stocks 47 vs VIXEQ 50 · index 8 vs VIX 18 · style factors 27 92.3%ile
20-day window (19 completed days + today); percentiles vs model history since 2020; definitions in Terms below. Implied prints (Cboe) are delayed ~15 min. as of 13:41 ET
Top 50 high-beta momentum names (eq-wt, since-2020 rank): +2.5% 83%ile · rest of market -0.2%
| Factor | Today | 1d | 5d | 20d | 60d |
|---|---|---|---|---|---|
| Style-Risk | |||||
| Residual Volatility | +0.78% z+1.5 | +0.19% | -1.25% | -1.31% | -1.62% |
| Beta | +0.44% z+0.4 | -0.46% | -5.08% | -9.42% | -1.05% |
| International | -0.04% z-0.1 | +0.01% | +0.08% | -0.42% | -1.82% |
| Style | |||||
| Liquidity | +0.80% z+2.7 | +0.26% | -0.73% | -2.57% | -1.39% |
| Leverage | -0.20% z-1.1 | -0.12% | -0.27% | -1.22% | -0.66% |
| Growth | +0.24% z+1.0 | -0.06% | -0.02% | +1.66% | +2.18% |
| Profitability | -0.12% z-0.6 | -0.23% | -0.16% | -0.89% | -1.19% |
| Size | +0.14% z+0.4 | -0.26% | -0.58% | -0.98% | +1.48% |
| Dividend Yield | -0.04% z-0.2 | +0.19% | +0.16% | -0.91% | +0.92% |
| Value | -0.04% z-0.1 | -0.22% | +0.12% | -0.92% | -1.28% |
| Style-Momentum | |||||
| One-Day Momentum | -0.17% z-0.6 | -0.42% | -0.76% | -0.91% | +1.43% |
| Short-Term Momentum | -0.15% z-0.4 | -0.09% | +0.06% | -0.44% | -1.96% |
| Long-Term Momentum | +0.18% z+0.3 | +0.87% | -1.24% | -2.76% | +3.10% |
| Medium-Term Momentum | -0.02% z-0.1 | +0.01% | +0.27% | +0.47% | +3.54% |
| Style-Positioning | |||||
| Short Interest | -0.21% z-1.1 | +0.00% | +0.15% | +1.69% | +1.66% |
| Hedge-Fund Ownership | -0.01% z-0.1 | -0.11% | +0.18% | +1.23% | -0.53% |
| Style-Flow | |||||
| Short-Sale Activity | -0.08% z-0.7 | -0.04% | +0.15% | +0.18% | -0.38% |
| Morning Activity | +0.01% z+0.1 | -0.17% | -0.06% | -0.24% | -1.75% |
| Thematic | |||||
| Oil | +0.76% z+1.5 | +0.66% | +0.01% | -0.84% | -0.94% |
| Bitcoin / Crypto | +0.45% z+1.5 | +0.19% | -0.59% | -0.91% | -1.48% |
| Treasury (Duration) | -0.48% z-1.4 | +0.19% | +0.94% | +0.71% | -1.00% |
| Gold | +0.20% z+0.6 | +0.14% | +0.26% | -1.77% | -4.47% |
| Semiconductors | +0.28% z+0.5 | +0.43% | -1.51% | -3.87% | +1.15% |
| China | +0.14% z+0.3 | -0.02% | +0.28% | -0.67% | -5.21% |
Pairwise realized correlation. Index variance net of the weighted idiosyncratic diagonal, over the cross terms — the estimator used for implied-correlation indices. 20-day window unless noted; history since 2020.
Market variance share. The fraction of cross-sectional variance explained by the market factor — the attribution companion to pairwise correlation, not a substitute for it.
Factor z-score. Today's factor return divided by its daily-return standard deviation over ~1,600 trading days.
High-beta momentum cohort. US names above $2B market cap in the top quintile of both raw beta and 12-month momentum; membership frozen at each month's first business day. “Top 50” = the 50 strongest by combined rank.
Dispersion (realized). Total cross-sectional volatility net of the market component; high dispersion is the flip side of low correlation.
Stock-specific (idiosyncratic) return. The part of a stock's move not explained by market, style, or thematic factors in our decomposition.
VIXEQ / DSPX / COR1M. Cboe implied indices: single-stock volatility, dispersion, and 1-month implied correlation (top-50 S&P names). Quotes delayed ~15 minutes.
Data compiled by FactorPulse AI; edited and verified by Jeff Klein. For informational purposes only. Does not constitute financial advice, an investment recommendation, or an offer to buy or sell any securities. Always consult a qualified financial professional before making investment decisions.
For more on factor construction methodology, see www.factorpulse.com/glossary.