Independent Power Producers & Energy Traders
Independent Power Producers & Energy Traders is losing market weight. Gained weight for 1 consecutive month.
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
Jan 2018 – Dec 2021 · 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 |
|---|---|---|---|---|---|---|
| AES Corporation → AES | Independent Power Producers & Energy Traders | United States | 0.052% | -0.011 pp | +5.9% | 0.0 |
| NRG Energy → NRG | Independent Power Producers & Energy Traders | United States | 0.034% | -0.003 pp | +18.5% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| 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% |
| Aug 2021 | 0.091% | +0.002 pp | +0.002 pp | +0.037 pp | +0.090 pp | +7.0% |
| Jul 2021 | 0.089% | -0.007 pp | -0.010 pp | +0.026 pp | +0.089 pp | +8.4% |
| Jun 2021 | 0.096% | +0.007 pp | +0.043 pp | -0.004 pp | +0.096 pp | +14.4% |
| May 2021 | 0.089% | -0.010 pp | +0.036 pp | -0.003 pp | +0.089 pp | +5.3% |
| Apr 2021 | 0.099% | +0.046 pp | +0.036 pp | +0.001 pp | +0.003 pp | +12.8% |
| Mar 2021 | 0.053% | -0.000 pp | -0.047 pp | +0.053 pp | +0.053 pp | +15.4% |
| Feb 2021 | 0.053% | -0.010 pp | -0.039 pp | +0.053 pp | +0.053 pp | +10.0% |
| Jan 2021 | 0.063% | -0.037 pp | -0.035 pp | +0.063 pp | -0.048 pp | +4.4% |
| Dec 2020 | 0.100% | +0.009 pp | +0.100 pp | +0.100 pp | -0.014 pp | -3.7% |
| Nov 2020 | 0.092% | -0.006 pp | +0.092 pp | +0.092 pp | -0.022 pp | -12.7% |
| Oct 2020 | 0.098% | +0.098 pp | +0.098 pp | +0.002 pp | -0.014 pp | -3.8% |
| Sep 2020 | 0.000% | -0.000 pp | +0.000 pp | +0.000 pp | -0.111 pp | -11.3% |
| Aug 2020 | 0.000% | +0.000 pp | +0.000 pp | +0.000 pp | -0.105 pp | -6.3% |
| Jul 2020 | 0.000% | -0.000 pp | -0.096 pp | -0.111 pp | -0.108 pp | -9.3% |
| Jun 2020 | 0.000% | -0.000 pp | +0.000 pp | -0.114 pp | -0.110 pp | -10.1% |
| May 2020 | 0.000% | -0.096 pp | +0.000 pp | -0.114 pp | -0.114 pp | -11.4% |
| Apr 2020 | 0.096% | +0.096 pp | -0.015 pp | -0.016 pp | -0.032 pp | -14.0% |
| Mar 2020 | 0.000% | +0.000 pp | -0.114 pp | -0.111 pp | -0.137 pp | -19.6% |
| Feb 2020 | 0.000% | -0.111 pp | -0.114 pp | -0.105 pp | -0.134 pp | -13.2% |
| Jan 2020 | 0.111% | -0.003 pp | -0.001 pp | +0.003 pp | +0.036 pp | -6.4% |
| Dec 2019 | 0.114% | +0.000 pp | +0.003 pp | +0.003 pp | +0.039 pp | -5.2% |
| Nov 2019 | 0.114% | +0.002 pp | +0.008 pp | -0.000 pp | +0.043 pp | +1.1% |
| Oct 2019 | 0.112% | +0.001 pp | +0.004 pp | -0.016 pp | +0.042 pp | +2.7% |
| Sep 2019 | 0.111% | +0.005 pp | +0.000 pp | -0.027 pp | +0.045 pp | +10.9% |
| Aug 2019 | 0.105% | -0.002 pp | -0.009 pp | -0.029 pp | +0.042 pp | +9.8% |
| Jul 2019 | 0.108% | -0.003 pp | -0.020 pp | +0.033 pp | -0.002 pp | +16.3% |
| Jun 2019 | 0.111% | -0.003 pp | -0.027 pp | +0.035 pp | -0.002 pp | +15.4% |
| May 2019 | 0.114% | -0.014 pp | -0.020 pp | +0.043 pp | -0.003 pp | +13.9% |
| Apr 2019 | 0.128% | -0.010 pp | +0.053 pp | +0.058 pp | +0.017 pp | +31.0% |
| Mar 2019 | 0.137% | +0.003 pp | +0.062 pp | +0.072 pp | +0.032 pp | +47.0% |
| Feb 2019 | 0.134% | +0.059 pp | +0.063 pp | +0.071 pp | +0.042 pp | +63.8% |
| Jan 2019 | 0.075% | -0.000 pp | +0.005 pp | -0.035 pp | -0.016 pp | +64.5% |
| Dec 2018 | 0.075% | +0.004 pp | +0.010 pp | -0.037 pp | -0.015 pp | +64.0% |
| Nov 2018 | 0.071% | +0.001 pp | +0.008 pp | -0.045 pp | -0.019 pp | +54.7% |
| Oct 2018 | 0.070% | +0.004 pp | -0.040 pp | -0.040 pp | -0.021 pp | +47.9% |
| Sep 2018 | 0.066% | +0.002 pp | -0.047 pp | -0.040 pp | -0.025 pp | +36.2% |
| Aug 2018 | 0.063% | -0.046 pp | -0.053 pp | -0.029 pp | -0.027 pp | +30.6% |
| Jul 2018 | 0.110% | -0.003 pp | -0.000 pp | +0.019 pp | +0.019 pp | +22.9% |
| Jun 2018 | 0.112% | -0.004 pp | +0.007 pp | +0.022 pp | +0.022 pp | +24.7% |
| May 2018 | 0.117% | +0.006 pp | +0.024 pp | +0.026 pp | +0.026 pp | +28.5% |
| Apr 2018 | 0.110% | +0.005 pp | +0.020 pp | +0.020 pp | +0.020 pp | +20.0% |
| Mar 2018 | 0.106% | +0.013 pp | +0.015 pp | +0.015 pp | +0.015 pp | +15.0% |
| Feb 2018 | 0.092% | +0.002 pp | +0.002 pp | +0.002 pp | +0.002 pp | +1.4% |
| Jan 2018 | 0.091% | +0.000 pp | +0.000 pp | +0.000 pp | +0.000 pp | +0.0% |
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.