Data as of .
SRTY vs TWM: which held to its multiple?
Over three months against its own daily promise, SRTY finished 3.5 points over and TWM 2.3 points over.
ETFIQ Decay Resistance Score: SRTY scores higher
Did it keep up with its own daily multiple, compounded day by day?
A percentile among the 121 inverse ETFs over three months. It is a position in a set, not a rating, and neither end of it is a recommendation. All leveraged ETFs ranked by it · How it is computed
Performance, window by window
| Window | Total return | Multiple would give | Difference | |||
|---|---|---|---|---|---|---|
| SRTY | TWM | SRTY | TWM | SRTY | TWM | |
| 1 month | +15.5% | +10.3% | +13.7% | +9.1% | +1.8 pts | +1.1 pts |
| 3 months | +4.2% | +3.3% | +3.5% | +2.3% | +0.7 pts | +1.0 pts |
| 6 months | −40.6% | −28.0% | −52.9% | −35.3% | +12.3 pts | +7.3 pts |
| 1 year | −47.8% | −32.4% | −63.7% | −42.4% | +15.9 pts | +10.0 pts |
| 3 years | −83.2% | −64.2% | −187.6% | −125.1% | +104.4 pts | +60.8 pts |
| Since launch | −100.0% | −99.7% | not meaningful | not meaningful | not meaningful | not meaningful |
| SRTY ProShares UltraPro Short Russell2000 Aims to return three times the opposite of the daily move of the Russell 2000 | TWM ProShares UltraShort Russell2000 Aims to return twice the opposite of the daily move of the Russell 2000 | |
|---|---|---|
| Issuer | ProShares | ProShares |
| Sets out to return | -3x | -2x |
| On | IWM | IWM |
| Segment | us small cap | us small cap |
| Fund returned, 3 months | +4.2% | +3.3% |
| Underlying returned, 3 months | −1.1% | −1.1% |
| What the stated multiple implies, 3 months | +3.5% | +2.3% |
| Difference from stated, 3 months | +0.7 pts | +1.0 pts |
| Fund returned, 1 year or since launch | −47.8% | −32.4% |
| Difference from stated, over that window | +15.9 pts | +10.0 pts |
| Underlying volatility | 14% | 14% |
| Difference over the days both have traded | +0.7 pts | no shared window |
| Expense ratio | 0.95% | 0.95% |
| Launched | Feb 11, 2010 | Jan 4, 2010 |
SRTY in plain words
Three months to Sep 11, 2026: SRTY returned +4.2% where its own daily promise gave +0.7%, 3.5 points over. Read the multiple against the whole window instead and −3 times IWM's −1.1% implies +3.5%, which makes SRTY look 0.7 points over. 2.7 of that is daily compounding, which happens to any −3 times fund over the same path, and the rest is the fund. SRTY aims to return -3 times IWM's move each day, then resets. Over one day it does that. Over longer, the daily results compound, so the total is not -3 times the period's move: in a market that falls and comes back it is reliably less, and in a steady run it can be more. IWM moved at 14% annualized over that window. That is what decides how far the two figures separate: the same fund on a calm underlying and a violent one is a different product.
TWM in plain words
Three months to Sep 11, 2026: TWM returned +3.3% where its own daily promise gave +0.9%, 2.3 points over. Read the multiple against the whole window instead and −2 times IWM's −1.1% implies +2.3%, which makes TWM look 1.0 points over. 1.4 of that is daily compounding, which happens to any −2 times fund over the same path, and the rest is the fund. TWM aims to return -2 times IWM's move each day, then resets. Over longer, the daily results compound, so the total is not -2 times the period's move: in a market that falls and comes back it is reliably less, and in a steady run it can be more.
Questions people ask
- Which came closer to its stated multiple, SRTY or TWM?
- Over the window to Sep 11, 2026, SRTY finished 0.7 points from what its multiple implies and TWM finished 1.0 points from its own, so SRTY came closer. Neither figure predicts the next window: it depends on how much the underlying moves about.
- Are SRTY and TWM levered on the same thing?
- Yes. Both are levered on the Russell 2000, SRTY at -3 times and TWM at -2 times the daily move.
- Which one decays faster, SRTY or TWM?
- Decay follows how much the underlying moves about. Over this window SRTY’s moved at 14% annualized and TWM’s at 14%, so SRTY has the rougher ride and, at the same multiple, loses more to compounding.
- Can I hold SRTY or TWM for a year?
- Both reset every day, so the multiple in the name applies to a single day and the daily results compound. Over a year the total is not the multiple times the year’s move, and in a market that falls and comes back it is reliably less. ETFIQ makes no recommendation either way.
- Which is cheaper, SRTY or TWM?
- SRTY charges 0.95% a year and TWM charges 0.95%, so SRTY is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, SRTY against TWM, data as of Sep 11, 2026. https://etfiq.com/compare/leverage/SRTY-TWM Free to use with attribution; the underlying files are at Open data.