Self-Storage REITs
Self-Storage REITs is gaining market weight. Lost weight for 1 consecutive month.
Most of this industry's gains 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 gains. 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 – Sep 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 |
|---|---|---|---|---|---|---|
| Public Storage → PSA | Self-Storage REITs | United States | 0.183% | +0.183 pp | +37.5% | 0.0 |
| Extra Space Storage → EXR | Self-Storage REITs | United States | 0.079% | +0.079 pp | +61.6% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| Sep 2021 | 0.262% | -0.012 pp | -0.001 pp | +0.143 pp | +0.261 pp | +13.4% |
| Aug 2021 | 0.273% | +0.006 pp | +0.024 pp | +0.158 pp | +0.273 pp | +27.5% |
| Jul 2021 | 0.267% | +0.004 pp | +0.018 pp | +0.137 pp | +0.267 pp | +23.7% |
| Jun 2021 | 0.263% | +0.014 pp | +0.144 pp | +0.039 pp | +0.263 pp | +20.2% |
| May 2021 | 0.249% | -0.001 pp | +0.134 pp | +0.020 pp | +0.249 pp | +4.9% |
| Apr 2021 | 0.249% | +0.131 pp | +0.119 pp | -0.011 pp | +0.004 pp | +10.2% |
| Mar 2021 | 0.119% | +0.004 pp | -0.105 pp | +0.118 pp | +0.118 pp | -14.2% |
| Feb 2021 | 0.115% | -0.016 pp | -0.114 pp | +0.115 pp | +0.115 pp | -7.9% |
| Jan 2021 | 0.131% | -0.093 pp | -0.130 pp | +0.130 pp | -0.133 pp | -10.0% |
| Dec 2020 | 0.224% | -0.005 pp | +0.224 pp | +0.224 pp | -0.026 pp | -2.9% |
| Nov 2020 | 0.229% | -0.032 pp | +0.228 pp | +0.228 pp | -0.026 pp | -3.8% |
| Oct 2020 | 0.260% | +0.260 pp | +0.260 pp | +0.015 pp | -0.018 pp | +1.6% |
| Sep 2020 | 0.000% | +0.000 pp | +0.000 pp | +0.000 pp | -0.307 pp | -14.5% |
| Aug 2020 | 0.000% | +0.000 pp | -0.000 pp | +0.000 pp | -0.336 pp | -26.9% |
| Jul 2020 | 0.000% | -0.000 pp | -0.245 pp | -0.263 pp | -0.302 pp | -18.1% |
| Jun 2020 | 0.000% | -0.000 pp | +0.000 pp | -0.249 pp | -0.297 pp | -16.5% |
| May 2020 | 0.000% | -0.245 pp | +0.000 pp | -0.254 pp | -0.321 pp | -15.2% |
| Apr 2020 | 0.245% | +0.245 pp | -0.018 pp | -0.033 pp | -0.043 pp | -7.6% |
| Mar 2020 | 0.000% | +0.000 pp | -0.249 pp | -0.307 pp | -0.293 pp | +7.1% |
| Feb 2020 | 0.000% | -0.263 pp | -0.254 pp | -0.336 pp | -0.284 pp | -0.4% |
| Jan 2020 | 0.264% | +0.014 pp | -0.015 pp | -0.038 pp | +0.100 pp | -4.0% |
| Dec 2019 | 0.250% | -0.005 pp | -0.058 pp | -0.047 pp | +0.083 pp | -11.6% |
| Nov 2019 | 0.255% | -0.024 pp | -0.082 pp | -0.067 pp | +0.091 pp | -7.3% |
| Oct 2019 | 0.278% | -0.029 pp | -0.024 pp | -0.010 pp | +0.118 pp | +3.2% |
| Sep 2019 | 0.307% | -0.029 pp | +0.010 pp | +0.014 pp | +0.160 pp | +27.2% |
| Aug 2019 | 0.337% | +0.035 pp | +0.015 pp | +0.052 pp | +0.179 pp | +31.1% |
| Jul 2019 | 0.302% | +0.005 pp | +0.013 pp | +0.138 pp | +0.011 pp | +14.2% |
| Jun 2019 | 0.297% | -0.024 pp | +0.004 pp | +0.130 pp | -0.019 pp | +3.0% |
| May 2019 | 0.321% | +0.033 pp | +0.037 pp | +0.157 pp | +0.024 pp | +17.5% |
| Apr 2019 | 0.289% | -0.004 pp | +0.125 pp | +0.129 pp | +0.003 pp | +8.9% |
| Mar 2019 | 0.293% | +0.008 pp | +0.126 pp | +0.146 pp | +0.011 pp | +11.7% |
| Feb 2019 | 0.285% | +0.121 pp | +0.121 pp | +0.127 pp | +0.018 pp | +14.4% |
| Jan 2019 | 0.163% | -0.004 pp | +0.003 pp | -0.127 pp | -0.091 pp | +23.9% |
| Dec 2018 | 0.167% | +0.003 pp | +0.020 pp | -0.149 pp | -0.087 pp | +26.3% |
| Nov 2018 | 0.164% | +0.004 pp | +0.007 pp | -0.134 pp | -0.090 pp | +22.6% |
| Oct 2018 | 0.160% | +0.013 pp | -0.130 pp | -0.125 pp | -0.094 pp | +19.2% |
| Sep 2018 | 0.147% | -0.010 pp | -0.169 pp | -0.135 pp | -0.107 pp | +7.7% |
| Aug 2018 | 0.157% | -0.133 pp | -0.140 pp | -0.110 pp | -0.097 pp | +13.5% |
| Jul 2018 | 0.290% | -0.026 pp | +0.005 pp | +0.036 pp | +0.036 pp | +16.9% |
| Jun 2018 | 0.316% | +0.019 pp | +0.034 pp | +0.062 pp | +0.062 pp | +26.1% |
| May 2018 | 0.298% | +0.012 pp | +0.031 pp | +0.043 pp | +0.043 pp | +16.9% |
| Apr 2018 | 0.285% | +0.004 pp | +0.031 pp | +0.031 pp | +0.031 pp | +11.2% |
| Mar 2018 | 0.282% | +0.015 pp | +0.027 pp | +0.027 pp | +0.027 pp | +10.4% |
| Feb 2018 | 0.267% | +0.013 pp | +0.013 pp | +0.013 pp | +0.013 pp | +4.6% |
| Jan 2018 | 0.254% | +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.