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 | -6.11% | -0.47 | -5pp | -1.14pp | Confirming ↓ |
| 1 month | -17.59% | -1.72 | -3pp | -1.59pp | Confirming ↓ |
| 1 quarter | -10.58% | +1.21 | +9pp | +1.07pp | Improving |
Over the last 126 sessions: price down -14.42%, breadth down (-0.19/name) · % beating 40→49 · median−ETF -3.60pp→-1.04pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +3.42% | +3.55% | +0.13pp | 38 / 3 | 23 / 20 | 10 of 43 | ±3% |
| 5d | -6.11% | -4.89% | +1.22pp | 9 / 34 | 23 / 20 | 2 of 43 | ±8.6% |
| 21d | -17.59% | -15.51% | +2.08pp | 7 / 36 | 22 / 21 | 0 of 43 | ±15.9% |
| YTD | +41.63% | +34.07% | -7.56pp | 32 / 9 | 15 / 26 | 0 of 41 | ±51.01% |
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+11.98%+0.33pp
- LSCC+10.98%+0.26pp
- CRDO+7.78%+0.25pp
- NVTS+7.94%+0.25pp
- MXL+4.30%+0.25pp
- PI-0.87%-0.02pp
- OLED-0.49%-0.01pp
- INDI-0.33%0pp
This month (21d)
- QRVO+13.74%+0.26pp
- NXPI+8.60%+0.2pp
- OLED+12.03%+0.16pp
- TXN+5.96%+0.14pp
- FSLR+5.53%+0.11pp
- MXL-39.36%-2.27pp
- INTC-47.89%-1.84pp
- MRVL-36.59%-1.8pp
- ALAB-35.52%-1.6pp
- SITM-37.34%-1.14pp
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)
- QRVO+13.74%
- OLED+12.03%
- NXPI+8.60%
- TXN+5.96%
- FSLR+5.53%
- INDI-48.45%
- INTC-47.89%
- MXL-39.36%
- SITM-37.34%
- MRVL-36.59%
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% | 63.97 | +4.30% | -14.33% | -39.36% | — | 5 |
| MRVL Marvell Technology Inc | 4.93% | 171.97 | +0.33% | -29.40% | -36.59% | +102.61% | 9 |
| ALAB Astera Labs Inc | 4.50% | 233.62 | +1.72% | -18.51% | -35.52% | +40.43% | 12 |
| AMD Adv Micro Devices | 3.84% | 483.90 | +3.65% | -13.63% | -23.40% | +125.95% | 35 |
| INTC Intel Corp | 3.84% | 60.55 | +0.97% | -35.41% | -47.89% | +64.09% | 2 |
| MU Micron Technology | 3.75% | 855.10 | +2.58% | -7.93% | -19.62% | +199.73% | 44 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 150.91 | +7.78% | -9.87% | -28.98% | +4.88% | 23 |
| NVTS Navitas Semiconductor Corp | 3.13% | 8.56 | +7.94% | -8.45% | -30.63% | +19.89% | 19 |
| ON On Semiconductor | 3.06% | 72.60 | +3.55% | -7.72% | -15.51% | +34.07% | 49 |
| SITM Sitime Corp | 3.05% | 444.88 | +6.46% | -9.38% | -37.34% | +25.96% | 7 |
| SMTC Semtech Corp | 2.93% | 127.42 | +4.12% | -11.73% | -33.92% | +72.91% | 14 |
| PENG Penguin Solutions Inc | 2.75% | 53.19 | +11.98% | -9.83% | -12.39% | +171.93% | 58 |
| SYNA Synaptics Inc | 2.64% | 117.41 | +0.00% | -0.58% | -1.94% | +58.62% | 77 |
| POWI Power Integratn | 2.56% | 46.99 | +4.77% | -4.74% | -13.56% | +33.14% | 51 |
| MTSI Macom Technology S | 2.49% | 235.49 | +5.99% | -7.90% | -28.27% | +37.49% | 26 |
| ALGM Allegro Microsystems Inc | 2.40% | 33.66 | +4.70% | -0.94% | -12.48% | +27.60% | 56 |
| QCOM Qualcomm Inc | 2.37% | 164.43 | +1.45% | -10.72% | -9.05% | -3.25% | 65 |
| LSCC Lattice Semicond | 2.36% | 105.92 | +10.98% | +2.32% | -20.27% | +43.95% | 37 |
| TXN Texas Instruments | 2.27% | 312.49 | +3.47% | +1.65% | +5.96% | +81.30% | 91 |
| NXPI Nxp Semiconductors | 2.27% | 262.79 | +2.16% | +3.66% | +8.60% | +21.70% | 93 |
| RMBS Rambus Inc | 2.23% | 88.18 | +4.96% | -0.82% | -20.05% | -4.04% | 42 |
| MPWR Monolithic Power Sys | 2.22% | 1328.30 | +6.78% | +9.61% | -10.24% | +46.85% | 60 |
| MCHP Microchip Technology | 2.20% | 77.90 | +2.35% | -2.83% | -4.41% | +22.97% | 74 |
| PI Impinj Inc | 1.99% | 184.46 | -0.87% | +5.52% | -0.39% | +6.01% | 79 |
| SWKS Skyworks Solutions | 1.98% | 85.40 | +0.27% | -0.09% | +1.78% | +37.47% | 86 |
| FSLR First Solar Inc | 1.97% | 185.90 | +2.11% | +5.72% | +5.53% | -28.84% | 88 |
| RGTI Rigetti Computing Inc | 1.93% | 11.09 | +3.89% | -10.89% | -26.83% | -49.95% | 28 |
| ADI Analog Devices | 1.93% | 419.79 | +1.68% | -1.31% | +0.16% | +55.27% | 84 |
| AMBA Ambarella Inc | 1.87% | 62.00 | +0.54% | -7.63% | -9.17% | -12.48% | 63 |
| QRVO Qorvo Inc | 1.86% | 114.17 | +0.00% | -1.83% | +13.74% | +35.10% | 98 |
| CRUS Cirrus Logic Inc | 1.77% | 112.32 | +0.75% | -1.71% | -7.44% | -5.22% | 70 |
| DIOD Diodes Inc | 1.72% | 84.24 | +5.67% | -4.89% | -18.63% | +70.73% | 47 |
| AVGO Broadcom Ltd | 1.66% | 332.13 | +3.07% | -2.98% | -8.38% | -3.84% | 67 |
| NVDA Nvidia Corp | 1.65% | 206.69 | +2.29% | -5.16% | -13.48% | +10.96% | 53 |
| SLAB Silicon Labs Inc | 1.58% | 222.34 | +0.11% | +0.27% | -0.21% | +70.11% | 81 |
| OLED Universal Display | 1.36% | 89.40 | -0.49% | -1.06% | +12.03% | -23.04% | 95 |
| WOLF Wolfspeed Inc | 1.21% | 22.42 | +7.53% | -11.07% | -33.13% | +28.78% | 16 |
| CEVA Ceva Inc | 1.06% | 29.24 | +4.06% | -6.79% | -20.24% | +35.87% | 40 |
| INDI Indie Semiconductor Cl A | 0.95% | 1.50 | -0.33% | -13.79% | -48.45% | -57.51% | 0 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 72 |
| KOPN Kopin Corp | 0.75% | 3.60 | +4.65% | -4.26% | -26.08% | +53.85% | 30 |
| AOSL Alpha and Omega Semi | 0.72% | 22.14 | +4.19% | -9.63% | -23.66% | +11.76% | 33 |
| NVEC Nve Corp | 0.28% | 80.39 | +5.02% | +0.26% | -29.56% | — | 21 |
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 2026-11-04: over 21 sessions the fund returned -17.59% while its median constituent returned -15.51% — a dispersion of 15.90 pp; 51% of 43 members beat the fund. Broad decline - breadth is falling with price.
How did XSD's members trade in the last session?
As of 2026-11-04: fund +3.42%, median member +3.55%, 38 advancers vs 3 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.