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 | +11.73% | +1.86 | -2pp | -0.94pp | Confirming ↑ |
| 1 month | -4.36% | -1.19 | -1pp | -0.85pp | Confirming ↓ |
| 1 quarter | +3.99% | +0.4 | +11pp | +4.91pp | Confirming ↑ |
Over the last 126 sessions: price up +51.89%, breadth up (+7.51/name) · % beating 42→48 · median−ETF -1.59pp→-1.11pp.
Dispersion by window
| Window | ETF | Median | Median − ETF | Up / Down | Beat / Lag | ±1% band | Dispersion |
|---|---|---|---|---|---|---|---|
| 1d | +4.66% | +3.89% | -0.77pp | 40 / 3 | 15 / 28 | 10 of 43 | ±4.46% |
| 5d | +11.73% | +11.56% | -0.17pp | 39 / 4 | 21 / 22 | 5 of 43 | ±9.84% |
| 21d | -4.36% | -6.36% | -2.00pp | 15 / 27 | 19 / 23 | 2 of 42 | ±12.65% |
| YTD | +69.46% | +65.97% | -3.48pp | 37 / 4 | 19 / 22 | 0 of 41 | ±55.59% |
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+6.81%+0.39pp
- NVTS+12.02%+0.38pp
- MCHP+13.89%+0.31pp
- CRDO+8.45%+0.27pp
- POWI+9.51%+0.24pp
- AMD-1.21%-0.05pp
- MU-0.44%-0.02pp
- NVEC-2.70%-0.01pp
This month (21d)
- PI+26.98%+0.54pp
- SITM+11.90%+0.36pp
- SWKS+17.80%+0.35pp
- QRVO+15.95%+0.3pp
- AMBA+10.72%+0.2pp
- MXL-21.73%-1.25pp
- ALAB-19.95%-0.9pp
- PENG-28.21%-0.78pp
- ALGM-23.72%-0.57pp
- ON-17.06%-0.52pp
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)
- PI+26.98%
- SWKS+17.80%
- QRVO+15.95%
- OLED+13.77%
- SITM+11.90%
- PENG-28.21%
- ALGM-23.72%
- MXL-21.73%
- ALAB-19.95%
- SYNA-18.00%
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% | 74.98 | +6.81% | +12.21% | -21.73% | — | 5 |
| MRVL Marvell Technology Inc | 4.93% | 218.72 | +3.89% | +16.61% | -10.07% | +157.69% | 36 |
| ALAB Astera Labs Inc | 4.50% | 334.17 | +0.81% | +7.37% | -19.95% | +100.87% | 7 |
| AMD Adv Micro Devices | 3.84% | 483.36 | -1.21% | +1.51% | -11.59% | +125.70% | 29 |
| INTC Intel Corp | 3.84% | 101.65 | +1.84% | +12.69% | -9.68% | +175.47% | 38 |
| MU Micron Technology | 3.75% | 877.57 | -0.44% | +6.63% | -11.50% | +207.61% | 31 |
| CRDO Credo Technology Group Holding Ltd | 3.23% | 249.89 | +8.45% | +20.73% | -5.93% | +73.67% | 50 |
| NVTS Navitas Semiconductor Corp | 3.13% | 13.89 | +12.02% | +27.90% | -2.05% | +94.54% | 60 |
| ON On Semiconductor | 3.06% | 81.17 | +3.63% | -0.54% | -17.06% | +49.90% | 17 |
| SITM Sitime Corp | 3.05% | 725.28 | +5.50% | +35.52% | +11.90% | +105.35% | 88 |
| SMTC Semtech Corp | 2.93% | 139.42 | +3.44% | +18.33% | +1.40% | +89.20% | 67 |
| PENG Penguin Solutions Inc | 2.75% | 58.43 | +3.86% | +11.02% | -28.21% | +198.72% | 0 |
| SYNA Synaptics Inc | 2.64% | 106.19 | +4.01% | -1.05% | -18.00% | +43.46% | 10 |
| POWI Power Integratn | 2.56% | 64.59 | +9.51% | +6.39% | -8.81% | +83.00% | 40 |
| MTSI Macom Technology S | 2.49% | 310.82 | +3.04% | +23.62% | -2.06% | +81.47% | 57 |
| ALGM Allegro Microsystems Inc | 2.40% | 43.77 | +3.10% | +5.47% | -23.72% | +65.92% | 2 |
| QCOM Qualcomm Inc | 2.37% | 167.86 | +4.66% | +13.72% | -12.17% | -1.23% | 24 |
| LSCC Lattice Semicond | 2.36% | 130.03 | +1.03% | +4.64% | -6.81% | +76.72% | 45 |
| TXN Texas Instruments | 2.27% | 286.08 | +2.76% | +3.75% | -7.28% | +65.97% | 43 |
| NXPI Nxp Semiconductors | 2.27% | 239.71 | +3.42% | +4.60% | -17.50% | +11.01% | 12 |
| RMBS Rambus Inc | 2.23% | 101.52 | +3.93% | +11.52% | -11.05% | +10.48% | 33 |
| MPWR Monolithic Power Sys | 2.22% | 1401.54 | +3.12% | -1.72% | +1.99% | +54.94% | 69 |
| MCHP Microchip Technology | 2.20% | 84.69 | +13.89% | +14.00% | -4.04% | +33.69% | 55 |
| PI Impinj Inc | 1.99% | 183.36 | +6.66% | +21.14% | +26.98% | +5.37% | 98 |
| SWKS Skyworks Solutions | 1.98% | 70.62 | +5.66% | +13.39% | +17.80% | +13.68% | 95 |
| FSLR First Solar Inc | 1.97% | 250.05 | +2.42% | +18.49% | +9.43% | -4.28% | 79 |
| RGTI Rigetti Computing Inc | 1.93% | 17.94 | +8.53% | +20.00% | +5.59% | -19.01% | 74 |
| ADI Analog Devices | 1.93% | 389.93 | +3.34% | +6.13% | -0.94% | +44.23% | 62 |
| AMBA Ambarella Inc | 1.87% | 86.78 | +3.57% | +0.91% | +10.72% | +22.50% | 83 |
| QRVO Qorvo Inc | 1.86% | 99.08 | +3.93% | +9.40% | +15.95% | +17.24% | 93 |
| CRUS Cirrus Logic Inc | 1.77% | 124.92 | +1.14% | -3.42% | -16.68% | +5.42% | 19 |
| DIOD Diodes Inc | 1.72% | 105.17 | +6.53% | +27.76% | +10.94% | +113.15% | 86 |
| AVGO Broadcom Ltd | 1.66% | 427.76 | +1.71% | +9.88% | +6.64% | +23.85% | 76 |
| NVDA Nvidia Corp | 1.65% | 223.96 | +2.27% | +11.56% | +10.44% | +20.23% | 81 |
| SLAB Silicon Labs Inc | 1.58% | 219.21 | +0.34% | +0.79% | +0.24% | +67.72% | 64 |
| OLED Universal Display | 1.36% | 91.19 | +4.52% | +13.76% | +13.77% | -21.50% | 90 |
| WOLF Wolfspeed Inc | 1.21% | 32.87 | +19.14% | +39.16% | -11.76% | +88.80% | 26 |
| CEVA Ceva Inc | 1.06% | 38.67 | +8.65% | +18.44% | -17.41% | +79.69% | 14 |
| INDI Indie Semiconductor Cl A | 0.95% | 4.04 | +17.78% | +25.08% | -14.23% | +14.45% | 21 |
| SKYT Skywater Technology Inc | 0.90% | 32.46 | +6.15% | +5.66% | -6.78% | +78.74% | 48 |
| KOPN Kopin Corp | 0.75% | 4.27 | +4.66% | +21.31% | +4.40% | +82.48% | 71 |
| AOSL Alpha and Omega Semi | 0.72% | 36.08 | +8.25% | +13.67% | -5.00% | +82.13% | 52 |
| NVEC Nve Corp | 0.28% | 125.94 | -2.70% | +9.26% | — | — | — |
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.