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 | -0.07% | +0.09 | -3pp | -0.23pp | Improving |
| 1 month | +7.40% | +0.84 | -6pp | -2.56pp | Confirming ↑ |
| 1 quarter | -3.70% | -0.47 | +8pp | +9.51pp | Confirming ↓ |
Over the last 126 sessions: price up +50.22%, breadth up (+7.53/name) · % beating 42→45 · median−ETF -1.14pp→-1.34pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +1.72% | +1.23% | -0.49pp | 32 / 11 | 18 / 25 | 12 of 43 | ±4.08% |
| 5d | -0.07% | -0.36% | -0.30pp | 20 / 23 | 20 / 23 | 9 of 43 | ±7.53% |
| 21d | +7.40% | +5.32% | -2.08pp | 29 / 13 | 18 / 24 | 2 of 42 | ±13.95% |
| YTD | +69.34% | +55.33% | -14.01pp | 36 / 5 | 17 / 24 | 0 of 41 | ±61.75% |
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)
- MXL+10.68%+0.62pp
- AMD+6.50%+0.25pp
- NVTS+5.78%+0.18pp
- SMTC+5.07%+0.15pp
- PENG+4.76%+0.13pp
- AVGO-5.94%-0.1pp
- INTC-1.97%-0.08pp
- CRDO-2.29%-0.07pp
- PI-3.44%-0.07pp
- OLED-2.24%-0.03pp
This month (21d)
- MRVL+17.91%+0.88pp
- MXL+14.03%+0.81pp
- CRDO+24.97%+0.81pp
- SITM+26.09%+0.8pp
- NVTS+22.93%+0.72pp
- NXPI-13.28%-0.3pp
- POWI-10.15%-0.26pp
- CRUS-11.59%-0.21pp
- ON-6.20%-0.19pp
- SYNA-5.99%-0.16pp
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)
- KOPN+49.05%
- RGTI+33.48%
- AMBA+29.63%
- SITM+26.09%
- CRDO+24.97%
- CEVA-13.60%
- NXPI-13.28%
- CRUS-11.59%
- POWI-10.15%
- SKYT-6.78%
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% | 84.84 | +10.68% | +13.15% | +14.03% | — | 67 |
| MRVL Marvell Technology Inc | 4.93% | 222.02 | -0.07% | +1.51% | +17.91% | +161.58% | 76 |
| ALAB Astera Labs Inc | 4.50% | 321.61 | -0.36% | -3.76% | +0.58% | +93.32% | 36 |
| AMD Adv Micro Devices | 3.84% | 514.39 | +6.50% | +6.42% | +2.68% | +140.19% | 43 |
| INTC Intel Corp | 3.84% | 102.50 | -1.97% | +0.84% | +5.69% | +177.78% | 50 |
| MU Micron Technology | 3.75% | 971.66 | +2.30% | +10.72% | +13.88% | +240.59% | 64 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 259.90 | -2.29% | +4.01% | +24.97% | +80.62% | 88 |
| NVTS Navitas Semiconductor Corp | 3.13% | 14.45 | +5.78% | +4.03% | +22.93% | +102.38% | 83 |
| ON On Semiconductor | 3.06% | 82.66 | +1.35% | +1.84% | -6.20% | +52.65% | 12 |
| SITM Sitime Corp | 3.05% | 711.91 | +3.49% | -1.84% | +26.09% | +101.57% | 90 |
| SMTC Semtech Corp | 2.93% | 140.35 | +5.07% | +0.67% | +9.95% | +90.46% | 60 |
| PENG Penguin Solutions Inc | 2.75% | 63.80 | +4.76% | +9.19% | -3.29% | +226.18% | 21 |
| SYNA Synaptics Inc | 2.64% | 108.63 | +1.23% | +2.30% | -5.99% | +46.76% | 14 |
| POWI Power Integratn | 2.56% | 62.75 | +0.71% | -2.85% | -10.15% | +77.79% | 7 |
| MTSI Macom Technology S | 2.49% | 316.44 | +3.05% | +1.81% | +14.86% | +84.75% | 69 |
| ALGM Allegro Microsystems Inc | 2.40% | 44.39 | +0.59% | +1.42% | -5.79% | +68.27% | 17 |
| QCOM Qualcomm Inc | 2.37% | 165.79 | +0.61% | -1.23% | -2.83% | -2.45% | 26 |
| LSCC Lattice Semicond | 2.36% | 130.46 | +1.58% | +0.33% | +4.79% | +77.30% | 45 |
| TXN Texas Instruments | 2.27% | 279.58 | +2.25% | -2.27% | -4.00% | +62.20% | 19 |
| NXPI Nxp Semiconductors | 2.27% | 234.71 | +1.21% | -2.09% | -13.28% | +8.69% | 2 |
| RMBS Rambus Inc | 2.23% | 100.85 | +1.53% | -0.66% | -0.56% | +9.75% | 29 |
| MPWR Monolithic Power Sys | 2.22% | 1402.01 | +2.90% | +0.03% | +7.38% | +55.00% | 55 |
| MCHP Microchip Technology | 2.20% | 79.17 | +1.91% | -6.52% | -3.07% | +24.98% | 24 |
| PI Impinj Inc | 1.99% | 172.65 | -3.44% | -5.84% | +22.66% | -0.78% | 81 |
| SWKS Skyworks Solutions | 1.98% | 69.62 | -0.20% | -1.42% | +20.81% | +12.07% | 79 |
| FSLR First Solar Inc | 1.97% | 225.56 | +0.84% | -9.79% | +6.43% | -13.65% | 52 |
| RGTI Rigetti Computing Inc | 1.93% | 18.82 | +1.07% | +4.91% | +33.48% | -15.03% | 95 |
| ADI Analog Devices | 1.93% | 389.39 | +2.16% | -0.14% | +2.33% | +44.03% | 40 |
| AMBA Ambarella Inc | 1.87% | 82.04 | +0.10% | -5.46% | +29.63% | +15.81% | 93 |
| QRVO Qorvo Inc | 1.86% | 98.11 | -0.34% | -0.98% | +17.50% | +16.09% | 74 |
| CRUS Cirrus Logic Inc | 1.77% | 121.09 | -0.11% | -3.07% | -11.59% | +2.19% | 5 |
| DIOD Diodes Inc | 1.72% | 103.48 | +6.47% | -1.61% | +15.91% | +109.73% | 71 |
| AVGO Broadcom Ltd | 1.66% | 392.99 | -5.94% | -8.13% | +4.95% | +13.79% | 48 |
| NVDA Nvidia Corp | 1.65% | 225.16 | -0.06% | +0.54% | +8.56% | +20.88% | 57 |
| SLAB Silicon Labs Inc | 1.58% | 218.41 | +0.05% | -0.36% | +0.02% | +67.11% | 31 |
| OLED Universal Display | 1.36% | 88.92 | -2.24% | -2.49% | +11.58% | -23.46% | 62 |
| WOLF Wolfspeed Inc | 1.21% | 31.79 | +0.89% | -3.29% | +1.96% | +82.60% | 38 |
| CEVA Ceva Inc | 1.06% | 33.28 | +9.58% | -13.94% | -13.60% | +54.65% | 0 |
| INDI Indie Semiconductor Cl A | 0.95% | 4.71 | +13.77% | +16.58% | +23.62% | +33.43% | 86 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 10 |
| KOPN Kopin Corp | 0.75% | 5.50 | +13.87% | +28.81% | +49.05% | +135.04% | 98 |
| AOSL Alpha and Omega Semi | 0.72% | 30.77 | +0.49% | -14.72% | +0.20% | +55.33% | 33 |
| NVEC Nve Corp | 0.28% | 121.25 | +4.23% | -3.72% | — | — | — |
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.