# PST (ProShares UltraShort 7-10 Year Treasury)

ProShares · Leveraged ETFs · data as of Sep 11, 2026

Three months to Sep 11, 2026: PST returned +6.9% where its own daily promise gave +4.7%, 2.1 points over.

## Key facts

- PST, what IEF did: −2.4%, as of Sep 11, 2026.
- PST, what −2 times a day gives: +4.7%, as of Sep 11, 2026.
- PST, what the fund returned: +6.9%, as of Sep 11, 2026.
- PST, the fund itself added: +2.1 pts, as of Sep 11, 2026.
- PST, net assets: $11m (issuer page, as of Sep 11, 2026).
- PST, expense ratio: 0.95% (485BPOS XBRL, Sep 23, 2025).

## PST over each window to Sep 11, 2026

| Window | Fund | IEF | -2x the move | Difference | IEF moved about |
| --- | --- | --- | --- | --- | --- |
| 1 month | +4.2% | −1.7% | +3.5% | +0.7 pts | 5% |
| 3 months | +6.9% | −2.4% | +4.7% | +2.1 pts | 5% |
| 6 months | +10.4% | −2.8% | +5.7% | +4.7 pts | 5% |
| 1 year | +15.2% | −2.7% | +5.4% | +9.7 pts | 5% |
| 3 years | +14.1% | +8.8% | −17.5% | +31.6 pts | 6% |
| Since launch | −47.4% | +49.9% | −99.8% | +52.5 pts | 7% |

## Every published field

| Field | Value | Source |
| --- | --- | --- |
| Sets out to return | -2 times the daily move of IEF, reset daily | ETFIQ |
| Multiple a holder actually got over the window | IEF moved −2.4% over this window, too little to read a multiple from | ETFIQ |
| Underlying | IEF | ETFIQ |
| Segment | asset class, bond | ETFIQ |
| Net assets | $11m | issuer page, as of Sep 11, 2026 |
| Expense ratio | 0.95% | 485BPOS XBRL, Sep 23, 2025 |
| Launched | Jan 4, 2010 | ETFIQ |
| Underlying volatility over the window | 5% annualized | ETFIQ |

## Questions

### Did PST return -2 times IEF?

Over the window to Sep 11, 2026, IEF moved −2.4% and PST returned +6.9%. 2 times that move is +4.7%, so the fund came out 2.1 points ahead of it.

### Why does PST not return -2 times over a year?

Because it resets daily. PST aims at -2 times each day's move, and daily results compound. Over a run where the underlying falls and comes back, compounding a levered daily return leaves a holder behind what -2 times the period move would suggest; over a steady run in one direction it can leave them ahead. The longer the holding, and the more the underlying moves about, the further apart the two figures get.


## Cite this page

ETFIQ, PST, data as of Sep 11, 2026. https://etfiq.com/funds/PST
Free to use with attribution; the underlying files are at https://etfiq.com/data/.

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