Data as of .
SPDN vs SSO: which held to its multiple?
Over three months against its own daily promise, SPDN finished 1.7 points over and SSO 1.4 points short.
ETFIQ Decay Resistance Score: SSO 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 | |||
|---|---|---|---|---|---|---|
| SPDN | SSO | SPDN | SSO | SPDN | SSO | |
| 1 month | +1.7% | −2.7% | +1.1% | −2.1% | +0.6 pts | −0.6 pts |
| 3 months | −1.8% | +4.9% | −3.3% | +6.6% | +1.5 pts | −1.7 pts |
| 6 months | −11.6% | +29.8% | −16.0% | +32.0% | +4.4 pts | −2.3 pts |
| 1 year | −10.0% | +28.5% | −17.5% | +35.0% | +7.5 pts | −6.5 pts |
| 3 years | −32.2% | +145.8% | −77.9% | +155.8% | +45.7 pts | −10.0 pts |
| Since launch | −73.7% | +2989.0% | not meaningful | not meaningful | not meaningful | not meaningful |
| SPDN Direxion Daily S&P 500 (R) Bear 1X ETF Aims to return 1 times the opposite of the daily move of the S&P 500 | SSO ProShares Ultra S&P500 Aims to return twice the daily move of the S&P 500 | |
|---|---|---|
| Issuer | Direxion | ProShares |
| Sets out to return | -1x | +2x |
| On | SPY | SPY |
| Segment | us large cap | us large cap |
| Fund returned, 3 months | −1.8% | +4.9% |
| Underlying returned, 3 months | +3.3% | +3.3% |
| What the stated multiple implies, 3 months | −3.3% | +6.6% |
| Difference from stated, 3 months | +1.5 pts | −1.7 pts |
| Fund returned, 1 year or since launch | −10.0% | +28.5% |
| Difference from stated, over that window | +7.5 pts | −6.5 pts |
| Underlying volatility | 12% | 12% |
| Difference over the days both have traded | +1.5 pts | −1.7 pts |
| Expense ratio | not published | 0.87% |
| Launched | Jun 8, 2016 | Jan 4, 2010 |
SPDN in plain words
Three months to Sep 11, 2026: SPDN returned −1.8% where its own daily promise gave −3.5%, 1.7 points over. Read the multiple against the whole window instead and −1 times SPY's 3.3% implies −3.3%, which makes SPDN look 1.5 points over. 0.2 of that is daily compounding, which happens to any −1 times fund over the same path, and the rest is the fund. SPDN aims to return -1 times SPY's move each day, then resets. Over one day it does that. Over longer, the daily results compound, so the total is not -1 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. SPY moved at 12% 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.
SSO in plain words
Three months to Sep 11, 2026: SSO returned +4.9% where its own daily promise gave +6.3%, 1.4 points short. Read the multiple against the whole window instead and +2 times SPY's 3.3% implies +6.6%, which makes SSO look 1.7 points short. 0.3 of that is daily compounding, which happens to any +2 times fund over the same path, and the rest is the fund. SSO aims to return +2 times SPY'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, SPDN or SSO?
- Over the window to Sep 11, 2026, SPDN finished 1.5 points from what its multiple implies and SSO finished 1.7 points from its own, so SPDN came closer. Neither figure predicts the next window: it depends on how much the underlying moves about.
- Are SPDN and SSO levered on the same thing?
- Yes. Both are levered on the S&P 500, SPDN at -1 times and SSO at +2 times the daily move.
- Which one decays faster, SPDN or SSO?
- Decay follows how much the underlying moves about. Over this window SPDN’s moved at 12% annualized and SSO’s at 12%, so SPDN has the rougher ride and, at the same multiple, loses more to compounding.
- Can I hold SPDN or SSO 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.
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, SPDN against SSO, data as of Sep 11, 2026. https://etfiq.com/compare/leverage/SPDN-SSO Free to use with attribution; the underlying files are at Open data.