Constituent dispersion · breadth vs the index
XSD — SPDR S&P Semiconductor (EW)
Divergence over time — price vs breadth, by horizon
The hero read is the 1-month picture; here the same price↔breadth divergence across 1 week / 1 month / 1 quarter, computed over the 126-session history. A/D /name is net advancers-minus-decliners per covered constituent; % beating Δ and median−ETF Δ show how participation shifted. Price rising while those fall = the move is narrowing under the surface.
| Horizon | Price | A/D /name | % beating Δ | Median−ETF Δ | Read |
|---|---|---|---|---|---|
| 1 week | -3.23% | +0.07 | +12pp | +6.11pp | Improving |
| 1 month | -13.48% | +0.51 | +12pp | +5.20pp | Improving |
| 1 quarter | -18.45% | +0.07 | +13pp | +6.07pp | Improving |
Over the last 126 sessions: price down -21.93%, breadth down (-0.65/name) · % beating 37→61 · median−ETF -12.06pp→+5.07pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -0.94% | -0.71% | +0.23pp | 15 / 27 | 23 / 20 | 16 of 43 | ±2.42% |
| 5d | -3.23% | -2.65% | +0.58pp | 14 / 29 | 23 / 20 | 7 of 43 | ±12.72% |
| 21d | -13.48% | -8.30% | +5.18pp | 9 / 34 | 27 / 16 | 1 of 43 | ±16.75% |
| YTD | +37.06% | +31.37% | -5.68pp | 30 / 11 | 17 / 24 | 0 of 41 | ±44.82% |
Median − ETF below zero means the typical name is lagging the cap-weighted index — the move is top-heavy. "Beat" counts constituents outperforming the ETF over the window. Dispersion is the cross-sectional standard deviation of constituent returns — high = a stock-picker's tape, low = pure beta.
What drove the move — contribution = weight × return
Today (1d)
- AVGO+3.91%+0.06pp
- SKYT+6.15%+0.06pp
- AMD+1.30%+0.05pp
- NXPI+2.00%+0.05pp
- TXN+1.62%+0.04pp
- MXL-3.72%-0.21pp
- RGTI-6.39%-0.12pp
- FSLR-5.55%-0.11pp
- NVDA-5.47%-0.09pp
- SITM-2.76%-0.08pp
This month (21d)
- NXPI+16.14%+0.37pp
- OLED+20.35%+0.28pp
- QRVO+13.74%+0.26pp
- CRUS+13.02%+0.23pp
- SWKS+10.72%+0.21pp
- MXL-39.51%-2.28pp
- MRVL-41.93%-2.07pp
- INTC-42.64%-1.64pp
- ALAB-33.30%-1.5pp
- PENG-43.60%-1.2pp
Each name's contribution = its index weight × its return — the percentage points it added to (green) or subtracted from (red) the ETF's move. Computed across covered names.
Leaders & laggards (21-day)
- OLED+20.35%
- NXPI+16.14%
- QRVO+13.74%
- CRUS+13.02%
- SWKS+10.72%
- PENG-43.60%
- INTC-42.64%
- MRVL-41.93%
- MXL-39.51%
- CRDO-35.37%
XSD — constituent leadership race
$100 in each covered XSD constituent at 2025-12-30, rebased to 100. Watch leadership change hands.
Each covered constituent started at $100 at the window open; the bars race by total return (top 12 shown). Decision-support, not investment advice.
Constituents — 43 covered · click a column to sort
| Symbol | Weight | Last | 1d | 5d | 21d | YTD | RS rank |
|---|---|---|---|---|---|---|---|
| MXL Maxlinear Inc | 5.77% | 53.83 | -3.72% | -15.85% | -39.51% | — | 7 |
| MRVL Marvell Technology Inc | 4.93% | 154.39 | -0.14% | -10.22% | -41.93% | +81.90% | 5 |
| ALAB Astera Labs Inc | 4.50% | 216.18 | -0.32% | -7.47% | -33.30% | +29.95% | 12 |
| AMD Adv Micro Devices | 3.84% | 515.21 | +1.30% | +6.47% | -13.30% | +140.57% | 37 |
| INTC Intel Corp | 3.84% | 58.13 | -2.09% | -4.00% | -42.64% | +57.53% | 2 |
| MU Micron Technology | 3.75% | 725.11 | -1.10% | -15.20% | -26.67% | +154.17% | 19 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 129.80 | -2.33% | -13.99% | -35.37% | -9.79% | 9 |
| NVTS Navitas Semiconductor Corp | 3.13% | 9.38 | -2.09% | +9.58% | -6.11% | +31.37% | 63 |
| ON On Semiconductor | 3.06% | 69.61 | +0.72% | -4.12% | -8.41% | +28.55% | 47 |
| SITM Sitime Corp | 3.05% | 444.45 | -2.76% | -0.10% | -22.04% | +25.84% | 28 |
| SMTC Semtech Corp | 2.93% | 113.49 | -2.54% | -10.93% | -32.56% | +54.01% | 14 |
| PENG Penguin Solutions Inc | 2.75% | 44.64 | -2.32% | -16.07% | -43.60% | +128.22% | 0 |
| SYNA Synaptics Inc | 2.64% | 117.70 | +0.38% | +0.25% | -1.42% | +59.01% | 72 |
| POWI Power Integratn | 2.56% | 43.94 | -0.79% | -6.49% | -6.73% | +24.49% | 56 |
| MTSI Macom Technology S | 2.49% | 226.48 | -1.53% | -3.83% | -26.07% | +32.23% | 21 |
| ALGM Allegro Microsystems Inc | 2.40% | 30.70 | -0.71% | -8.79% | -9.14% | +16.38% | 44 |
| QCOM Qualcomm Inc | 2.37% | 173.53 | +1.20% | +5.53% | -0.52% | +2.10% | 74 |
| LSCC Lattice Semicond | 2.36% | 111.25 | -2.32% | +5.03% | -9.44% | +51.20% | 42 |
| TXN Texas Instruments | 2.27% | 300.52 | +1.62% | -3.83% | +6.67% | +74.35% | 86 |
| NXPI Nxp Semiconductors | 2.27% | 261.56 | +2.00% | -0.47% | +16.14% | +21.13% | 95 |
| RMBS Rambus Inc | 2.23% | 80.76 | +0.02% | -8.41% | -20.07% | -12.11% | 30 |
| MPWR Monolithic Power Sys | 2.22% | 1357.60 | -2.19% | +2.21% | +2.91% | +50.09% | 81 |
| MCHP Microchip Technology | 2.20% | 60.33 | -1.90% | -22.55% | -18.29% | -4.76% | 35 |
| PI Impinj Inc | 1.99% | 171.81 | -1.67% | -6.86% | -9.59% | -1.26% | 40 |
| SWKS Skyworks Solutions | 1.98% | 82.71 | -0.14% | -3.15% | +10.72% | +33.14% | 88 |
| FSLR First Solar Inc | 1.97% | 180.98 | -5.55% | -2.65% | +0.70% | -30.72% | 79 |
| RGTI Rigetti Computing Inc | 1.93% | 12.15 | -6.39% | +9.61% | -8.30% | -45.15% | 49 |
| ADI Analog Devices | 1.93% | 393.30 | -0.34% | -6.31% | -3.19% | +45.48% | 67 |
| AMBA Ambarella Inc | 1.87% | 60.36 | -2.08% | -2.65% | -6.87% | -14.80% | 51 |
| QRVO Qorvo Inc | 1.86% | 114.17 | +0.00% | -1.83% | +13.74% | +35.10% | 93 |
| CRUS Cirrus Logic Inc | 1.77% | 120.17 | +1.60% | +6.99% | +13.02% | +1.41% | 91 |
| DIOD Diodes Inc | 1.72% | 86.73 | +0.98% | +2.96% | -4.29% | +75.78% | 65 |
| AVGO Broadcom Ltd | 1.66% | 331.98 | +3.91% | -0.05% | -6.41% | -3.88% | 60 |
| NVDA Nvidia Corp | 1.65% | 168.89 | -5.47% | -18.29% | -25.38% | -9.33% | 23 |
| SLAB Silicon Labs Inc | 1.58% | 221.61 | -0.09% | -0.33% | -0.04% | +69.56% | 77 |
| OLED Universal Display | 1.36% | 90.38 | +0.41% | +1.10% | +20.35% | -22.20% | 98 |
| WOLF Wolfspeed Inc | 1.21% | 26.23 | +0.42% | +16.99% | -6.42% | +50.66% | 58 |
| CEVA Ceva Inc | 1.06% | 24.45 | -1.57% | -16.38% | -22.99% | +13.62% | 26 |
| INDI Indie Semiconductor Cl A | 0.95% | 2.28 | +3.64% | +52.00% | -1.94% | -35.41% | 70 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 53 |
| KOPN Kopin Corp | 0.75% | 3.32 | -1.78% | -7.78% | -19.61% | +41.88% | 33 |
| AOSL Alpha and Omega Semi | 0.72% | 28.28 | -3.05% | +27.73% | +6.40% | +42.76% | 84 |
| NVEC Nve Corp | 0.28% | 80.20 | +0.05% | -0.24% | -27.23% | — | 16 |
RS rank = the constituent's 21-day return percentile within the index (100 = strongest of the covered names). Weight is the index weight; returns use adjusted closes. Default sort: weight.
Other ETFs & indices
Dispersion is computed across the constituents we cover in our data lake (see coverage badge). Decision-support, not investment advice.
FAQ · from the current data
XSD dispersion — data Q&A
Is XSD's move broad or carried by a few names (21 sessions)?
As of 2026-11-10: over 21 sessions the fund returned -13.48% while its median constituent returned -8.30% — a dispersion of 16.75 pp; 63% of 43 members beat the fund. Improving below the surface - the A/D line is rising while price is flat-to-down; more names participating than the headline shows.
How did XSD's members trade in the last session?
As of 2026-11-10: fund -0.94%, median member -0.71%, 15 advancers vs 27 decliners.
What does the dispersion page for XSD measure?
It splits the fund into its members: the fund's own return against the median constituent, how many members beat the fund, advancers vs decliners, and a cumulative advance/decline line that tends to lead price. A firm fund price with a weak median and a falling A/D line is a narrow, top-heavy tape; a broad move shows the median keeping up. 43 constituents covered, re-baked nightly from the Closelooknet lake.
Is this investment advice?
No — a data surface in an investment research diary. It describes breadth inside a fund; it makes no recommendation.