Independent Power Producers & Energy Traders
Independent Power Producers & Energy Traders is losing market weight. Lost weight for 2 consecutive months.
Most of this industry's losses came from a few companies.
Where did the weight change come from?
12-month contribution in universe percentage points · contributions add to the industry change
The three largest same-direction contributors explain 100% of gross losses. Opposing contributions can make an individual company’s change larger than the industry’s net change.
How has it moved through history?
Share of matched S&P 500 members
Sep 2021 – Aug 2026 · market weight (%)
Relative performance
Industry return versus ACWI · no future data shown
Is participation broad or concentrated?
Actual constituent counts at this date, not the legacy synthetic breadth proxy
This is size concentration, not contribution to the 12-month change. The attribution above measures the latter.
Evidence can disagree
Independent dimensions · no combined score or bullish/bearish verdict
Other evidence and availability
Valuation data: unavailable; shown as zero placeholder.
Attention data: unavailable; shown as zero placeholder.
Actual fund flows: unavailable. No ETF, mutual-fund or institutional flow feed is connected.
Volume / turnover: unavailable in this dataset.
Follow the contribution to individual companies
Sorted by absolute 12-month weight contribution, not investment merit
| Company | Sub-industry | Country | Universe weight | 12M contribution | 12M price return | Revisions |
|---|---|---|---|---|---|---|
| NRG Energy → NRG | Independent Power Producers & Energy Traders | United States | 0.039% | -0.020 pp | -23.4% | 0.0 |
| AES Corporation → AES | Independent Power Producers & Energy Traders | United States | 0.018% | -0.002 pp | +14.3% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| Aug 2026 | 0.056% | -0.012 pp | -0.011 pp | -0.014 pp | -0.022 pp | -30.1% |
| Jul 2026 | 0.068% | -0.004 pp | +0.008 pp | -0.008 pp | -0.021 pp | -26.9% |
| Jun 2026 | 0.072% | +0.005 pp | +0.011 pp | -0.008 pp | -0.012 pp | -17.4% |
| May 2026 | 0.067% | +0.008 pp | -0.002 pp | -0.016 pp | -0.018 pp | -23.9% |
| Apr 2026 | 0.059% | -0.001 pp | -0.017 pp | -0.025 pp | -0.010 pp | +10.9% |
| Mar 2026 | 0.060% | -0.009 pp | -0.019 pp | -0.021 pp | -0.006 pp | +19.0% |
| Feb 2026 | 0.070% | -0.006 pp | -0.014 pp | -0.009 pp | +0.004 pp | +35.1% |
| Jan 2026 | 0.076% | -0.004 pp | -0.009 pp | -0.013 pp | +0.012 pp | +21.4% |
| Dec 2025 | 0.080% | -0.004 pp | -0.002 pp | -0.004 pp | +0.018 pp | +29.5% |
| Nov 2025 | 0.083% | -0.001 pp | +0.005 pp | -0.002 pp | +0.018 pp | +28.7% |
| Oct 2025 | 0.084% | +0.003 pp | -0.004 pp | +0.015 pp | +0.013 pp | +24.7% |
| Sep 2025 | 0.081% | +0.003 pp | -0.002 pp | +0.016 pp | +0.005 pp | +12.6% |
| Aug 2025 | 0.078% | -0.010 pp | -0.007 pp | +0.013 pp | +0.007 pp | +18.0% |
| Jul 2025 | 0.089% | +0.005 pp | +0.019 pp | +0.025 pp | +0.038 pp | +38.0% |
| Jun 2025 | 0.084% | -0.001 pp | +0.018 pp | +0.022 pp | +0.030 pp | +25.2% |
| May 2025 | 0.085% | +0.016 pp | +0.020 pp | +0.019 pp | +0.024 pp | +11.0% |
| Apr 2025 | 0.069% | +0.003 pp | +0.006 pp | -0.002 pp | -0.011 pp | -2.4% |
| Mar 2025 | 0.066% | +0.001 pp | +0.004 pp | -0.011 pp | -0.008 pp | +2.4% |
| Feb 2025 | 0.065% | +0.002 pp | -0.001 pp | -0.007 pp | +0.001 pp | +20.8% |
| Jan 2025 | 0.064% | +0.001 pp | -0.008 pp | +0.013 pp | -0.005 pp | +8.4% |
| Dec 2024 | 0.062% | -0.004 pp | -0.015 pp | +0.008 pp | -0.011 pp | +1.3% |
| Nov 2024 | 0.066% | -0.006 pp | -0.006 pp | +0.004 pp | -0.004 pp | +12.7% |
| Oct 2024 | 0.071% | -0.006 pp | +0.021 pp | -0.009 pp | +0.004 pp | +22.7% |
| Sep 2024 | 0.077% | +0.005 pp | +0.023 pp | +0.003 pp | +0.014 pp | +40.4% |
| Aug 2024 | 0.072% | +0.021 pp | +0.010 pp | +0.008 pp | +0.006 pp | +24.3% |
| Jul 2024 | 0.051% | -0.003 pp | -0.030 pp | -0.018 pp | +0.000 pp | +9.7% |
| Jun 2024 | 0.054% | -0.008 pp | -0.021 pp | -0.019 pp | +0.002 pp | +13.6% |
| May 2024 | 0.062% | -0.019 pp | -0.002 pp | -0.008 pp | +0.010 pp | +31.7% |
| Apr 2024 | 0.081% | +0.006 pp | +0.012 pp | +0.014 pp | +0.001 pp | +6.6% |
| Mar 2024 | 0.074% | +0.010 pp | +0.001 pp | +0.011 pp | -0.007 pp | -3.7% |
| Feb 2024 | 0.064% | -0.005 pp | -0.006 pp | -0.002 pp | -0.021 pp | -20.1% |
| Jan 2024 | 0.069% | -0.004 pp | +0.002 pp | +0.018 pp | -0.021 pp | -19.1% |
| Dec 2023 | 0.073% | +0.004 pp | +0.010 pp | +0.021 pp | -0.023 pp | -21.0% |
| Nov 2023 | 0.070% | +0.003 pp | +0.004 pp | +0.018 pp | -0.029 pp | -28.1% |
| Oct 2023 | 0.067% | +0.003 pp | +0.016 pp | -0.013 pp | -0.032 pp | -33.5% |
| Sep 2023 | 0.063% | -0.002 pp | +0.011 pp | -0.018 pp | -0.031 pp | -32.1% |
| Aug 2023 | 0.066% | +0.015 pp | +0.014 pp | -0.019 pp | -0.030 pp | -29.8% |
| Jul 2023 | 0.051% | -0.001 pp | -0.029 pp | -0.039 pp | -0.031 pp | -9.8% |
| Jun 2023 | 0.052% | +0.000 pp | -0.030 pp | -0.044 pp | -0.038 pp | -13.0% |
| May 2023 | 0.052% | -0.028 pp | -0.033 pp | -0.047 pp | -0.040 pp | -15.8% |
| Apr 2023 | 0.080% | -0.002 pp | -0.010 pp | -0.019 pp | -0.001 pp | +8.5% |
| Mar 2023 | 0.082% | -0.003 pp | -0.014 pp | -0.013 pp | -0.007 pp | +2.5% |
| Feb 2023 | 0.084% | -0.005 pp | -0.014 pp | -0.011 pp | +0.004 pp | +18.1% |
| Jan 2023 | 0.090% | -0.006 pp | -0.009 pp | +0.008 pp | +0.007 pp | +22.3% |
| Dec 2022 | 0.096% | -0.003 pp | +0.001 pp | +0.006 pp | +0.010 pp | +28.2% |
| Nov 2022 | 0.099% | -0.000 pp | +0.003 pp | +0.006 pp | +0.016 pp | +41.4% |
| Oct 2022 | 0.099% | +0.004 pp | +0.017 pp | +0.018 pp | +0.011 pp | +38.0% |
| Sep 2022 | 0.095% | -0.001 pp | +0.005 pp | +0.006 pp | +0.006 pp | +26.0% |
| Aug 2022 | 0.096% | +0.014 pp | +0.003 pp | +0.015 pp | +0.005 pp | +22.9% |
| Jul 2022 | 0.082% | -0.008 pp | +0.001 pp | -0.001 pp | -0.007 pp | +6.9% |
| Jun 2022 | 0.090% | -0.003 pp | +0.001 pp | +0.004 pp | -0.006 pp | +4.5% |
| May 2022 | 0.092% | +0.012 pp | +0.011 pp | +0.010 pp | +0.004 pp | +15.7% |
| Apr 2022 | 0.081% | -0.008 pp | -0.002 pp | -0.008 pp | -0.018 pp | -10.2% |
| Mar 2022 | 0.089% | +0.008 pp | +0.003 pp | +0.001 pp | +0.036 pp | -5.6% |
| Feb 2022 | 0.081% | -0.002 pp | -0.002 pp | -0.010 pp | +0.028 pp | -16.1% |
| Jan 2022 | 0.083% | -0.003 pp | -0.006 pp | -0.006 pp | +0.020 pp | -15.8% |
| Dec 2021 | 0.086% | +0.003 pp | -0.003 pp | -0.010 pp | -0.015 pp | -6.8% |
| Nov 2021 | 0.082% | -0.006 pp | -0.008 pp | -0.006 pp | -0.009 pp | -3.1% |
| Oct 2021 | 0.089% | +0.000 pp | -0.000 pp | -0.010 pp | -0.009 pp | -4.3% |
| Sep 2021 | 0.088% | -0.002 pp | -0.008 pp | +0.036 pp | +0.088 pp | +4.3% |
How are these descriptive states defined?
Gaining / losing: 12-month weight change above +0.005pp / below −0.005pp. Direction and speed are separate dimensions, not mutually exclusive recommendations.
Accelerating / slowing: compare the most recent 3M change with the preceding 3M change. Accelerating means a positive change speeds up by >0.02pp. Slowing means the magnitude of movement declines by >0.02pp. A falling industry can also slow.
Reversing: the last two 3M changes have opposite signs, outside a ±0.005pp tolerance. Persistence counts consecutive same-direction monthly changes.
Broad / concentrated: company attribution, not a market-cap concentration shortcut. Concentrated means the three largest same-direction contributors account for ≥70% of gross same-direction changes; otherwise broad requires ≥60% of constituents moving with the industry. Other cases are mixed.
Weights use matched S&P 500 members’ market-cap estimates, based on SEC-reported shares available by each month-end and monthly closing prices. Companies without a matched price or share record are omitted, so the denominator is the matched sample rather than every index member. These are not official float-adjusted S&P weights. Flow is not measured.