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 | -7.83% | -2.16 | -3pp | -0.68pp | Confirming ↓ |
| 1 month | +0.75% | +0.65 | +9pp | +1.43pp | Improving |
| 1 quarter | -6.94% | -1 | +5pp | +1.16pp | Confirming ↓ |
Over the last 126 sessions: price up +30.87%, breadth up (+5.21/name) · % beating 49→49 · median−ETF -0.46pp→-0.13pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | -3.55% | -3.20% | +0.35pp | 6 / 36 | 23 / 20 | 7 of 43 | ±3.49% |
| 5d | -7.83% | -7.53% | +0.29pp | 4 / 39 | 22 / 21 | 5 of 43 | ±8.44% |
| 21d | +0.75% | +0.62% | -0.13pp | 23 / 20 | 21 / 22 | 4 of 43 | ±13.83% |
| YTD | +58.41% | +40.35% | -18.06pp | 35 / 6 | 17 / 24 | 0 of 41 | ±74.63% |
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)
- PENG+3.77%+0.1pp
- SKYT+6.15%+0.06pp
- FSLR+1.07%+0.02pp
- PI+0.22%+0pp
- OLED+0.19%+0pp
- MXL-7.46%-0.43pp
- SMTC-10.15%-0.3pp
- ALAB-5.29%-0.24pp
- CRDO-7.25%-0.23pp
- NVTS-7.33%-0.23pp
This month (21d)
- PENG+54.72%+1.5pp
- MXL+19.34%+1.12pp
- CRDO+23.25%+0.75pp
- MRVL+12.60%+0.62pp
- AMD+15.13%+0.58pp
- NVTS-14.10%-0.44pp
- SITM-10.32%-0.31pp
- SWKS-15.45%-0.31pp
- INDI-30.60%-0.29pp
- FSLR-14.02%-0.28pp
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)
- PENG+54.72%
- CRDO+23.25%
- MXL+19.34%
- SYNA+18.18%
- RMBS+16.18%
- INDI-30.60%
- SWKS-15.45%
- NVTS-14.10%
- FSLR-14.02%
- RGTI-13.23%
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% | 88.99 | -7.46% | -15.64% | +19.34% | — | 93 |
| MRVL Marvell Technology Inc | 4.93% | 265.86 | -3.42% | -1.97% | +12.60% | +213.23% | 81 |
| ALAB Astera Labs Inc | 4.50% | 324.11 | -5.29% | -10.55% | +11.29% | +94.82% | 77 |
| AMD Adv Micro Devices | 3.84% | 594.24 | -2.28% | -5.94% | +15.13% | +177.47% | 86 |
| INTC Intel Corp | 3.84% | 101.35 | -3.20% | -12.77% | -1.54% | +174.66% | 40 |
| MU Micron Technology | 3.75% | 989.04 | -3.88% | -7.04% | +1.41% | +246.68% | 51 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 200.84 | -7.25% | -5.48% | +23.25% | +39.58% | 95 |
| NVTS Navitas Semiconductor Corp | 3.13% | 9.99 | -7.33% | -19.04% | -14.10% | +39.92% | 5 |
| ON On Semiconductor | 3.06% | 76.00 | -1.97% | -11.56% | -0.18% | +40.35% | 44 |
| SITM Sitime Corp | 3.05% | 570.07 | -6.91% | -19.71% | -10.32% | +61.41% | 14 |
| SMTC Semtech Corp | 2.93% | 168.28 | -10.15% | -12.73% | +0.62% | +128.36% | 49 |
| PENG Penguin Solutions Inc | 2.75% | 79.16 | +3.77% | +30.38% | +54.72% | +304.68% | 98 |
| SYNA Synaptics Inc | 2.64% | 119.40 | -0.35% | -0.28% | +18.18% | +61.31% | 91 |
| POWI Power Integratn | 2.56% | 47.11 | -4.09% | -13.34% | -9.89% | +33.47% | 16 |
| MTSI Macom Technology S | 2.49% | 306.36 | -7.18% | -6.68% | +11.44% | +78.87% | 79 |
| ALGM Allegro Microsystems Inc | 2.40% | 33.79 | -5.00% | -12.14% | -6.94% | +28.09% | 23 |
| QCOM Qualcomm Inc | 2.37% | 174.43 | -0.61% | -3.52% | -4.14% | +2.63% | 35 |
| LSCC Lattice Semicond | 2.36% | 122.84 | -2.55% | -7.53% | +2.57% | +66.95% | 53 |
| TXN Texas Instruments | 2.27% | 281.74 | -0.70% | -4.46% | +4.85% | +63.46% | 60 |
| NXPI Nxp Semiconductors | 2.27% | 225.21 | -1.02% | -6.93% | -4.39% | +4.29% | 33 |
| RMBS Rambus Inc | 2.23% | 101.04 | -5.98% | -8.40% | +16.18% | +9.96% | 88 |
| MPWR Monolithic Power Sys | 2.22% | 1319.23 | -4.84% | -10.86% | +6.87% | +45.84% | 63 |
| MCHP Microchip Technology | 2.20% | 73.83 | -2.28% | -9.40% | -0.50% | +16.55% | 42 |
| PI Impinj Inc | 1.99% | 190.04 | +0.22% | +2.62% | +7.48% | +9.21% | 67 |
| SWKS Skyworks Solutions | 1.98% | 74.70 | -2.16% | -10.98% | -15.45% | +20.24% | 2 |
| FSLR First Solar Inc | 1.97% | 179.72 | +1.07% | +2.02% | -14.02% | -31.20% | 7 |
| RGTI Rigetti Computing Inc | 1.93% | 13.25 | -5.56% | -12.54% | -13.23% | -40.18% | 9 |
| ADI Analog Devices | 1.93% | 406.25 | +0.01% | -3.07% | +7.25% | +50.26% | 65 |
| AMBA Ambarella Inc | 1.87% | 64.81 | -3.89% | -5.05% | -4.49% | -8.51% | 30 |
| QRVO Qorvo Inc | 1.86% | 114.17 | +0.00% | -1.83% | +13.74% | +35.10% | 84 |
| CRUS Cirrus Logic Inc | 1.77% | 106.33 | -0.51% | -12.38% | -10.49% | -10.27% | 12 |
| DIOD Diodes Inc | 1.72% | 90.62 | -4.55% | -12.47% | -4.62% | +83.66% | 28 |
| AVGO Broadcom Ltd | 1.66% | 354.73 | -1.88% | -2.15% | -1.83% | +2.71% | 37 |
| NVDA Nvidia Corp | 1.65% | 226.32 | -1.29% | -5.27% | +3.68% | +21.50% | 58 |
| SLAB Silicon Labs Inc | 1.58% | 221.70 | -0.15% | -0.49% | +0.62% | +69.63% | 47 |
| OLED Universal Display | 1.36% | 75.10 | +0.19% | -5.89% | -9.54% | -35.35% | 19 |
| WOLF Wolfspeed Inc | 1.21% | 28.03 | -8.43% | -16.40% | +8.14% | +61.00% | 70 |
| CEVA Ceva Inc | 1.06% | 31.75 | -5.20% | -13.39% | +9.45% | +47.54% | 72 |
| INDI Indie Semiconductor Cl A | 0.95% | 2.33 | -10.58% | -20.10% | -30.60% | -34.14% | 0 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 26 |
| KOPN Kopin Corp | 0.75% | 4.13 | -7.40% | -15.20% | -9.43% | +76.50% | 21 |
| AOSL Alpha and Omega Semi | 0.72% | 26.58 | -4.63% | -8.34% | +3.10% | +34.17% | 56 |
| NVEC Nve Corp | 0.28% | 110.21 | -3.17% | -3.43% | +9.65% | — | 74 |
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 2026-10-13: over 21 sessions the fund returned +0.75% while its median constituent returned +0.62% — a dispersion of 13.83 pp; 49% 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 2026-10-13: fund -3.55%, median member -3.20%, 6 advancers vs 36 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.