{
 "ticker": "PST",
 "name": "ProShares UltraShort 7-10 Year Treasury",
 "issuer": "ProShares",
 "desk": "leverage",
 "url": "https://etfiq.com/funds/pst",
 "html": "https://etfiq.com/funds/pst",
 "markdown": "https://etfiq.com/funds/pst.md",
 "as_of": "2026-09-30",
 "verdict": "Three months to Sep 30, 2026: PST returned +11.4% where its own daily promise gave +9.1%, 2.3 points over.",
 "key_facts": [
  {
   "key": "what_ief_did",
   "label": "What IEF did",
   "value": "\u22124.3%",
   "source": null,
   "as_of": "2026-09-30",
   "sentence": "PST, what IEF did: \u22124.3%, as of Sep 30, 2026."
  },
  {
   "key": "what_2_times_a_day_gives",
   "label": "What \u22122 times a day gives",
   "value": "+9.1%",
   "source": null,
   "as_of": "2026-09-30",
   "sentence": "PST, what \u22122 times a day gives: +9.1%, as of Sep 30, 2026."
  },
  {
   "key": "what_the_fund_returned",
   "label": "What the fund returned",
   "value": "+11.4%",
   "source": null,
   "as_of": "2026-09-30",
   "sentence": "PST, what the fund returned: +11.4%, as of Sep 30, 2026."
  },
  {
   "key": "the_fund_itself_added",
   "label": "The fund itself added",
   "value": "+2.3 pts",
   "source": null,
   "as_of": "2026-09-30",
   "sentence": "PST, the fund itself added: +2.3 pts, as of Sep 30, 2026."
  },
  {
   "key": "net_assets",
   "label": "Net assets",
   "value": "$11m",
   "source": "issuer page, as of Sep 30, 2026",
   "as_of": "2026-09-30",
   "sentence": "PST, net assets: $11m (issuer page, as of Sep 30, 2026)."
  },
  {
   "key": "expense_ratio",
   "label": "Expense ratio",
   "value": "0.95%",
   "source": "485BPOS XBRL, Sep 25, 2026",
   "as_of": "2026-09-30",
   "sentence": "PST, expense ratio: 0.95% (485BPOS XBRL, Sep 25, 2026)."
  }
 ],
 "fields": [
  {
   "key": "sets_out_to_return",
   "label": "Sets out to return",
   "value": "-2 times the daily move of IEF, reset daily",
   "source": null
  },
  {
   "key": "multiple_a_holder_actually_got_over_the_window",
   "label": "Multiple a holder actually got over the window",
   "value": "IEF moved \u22124.3% over this window, too little to read a multiple from",
   "source": "ETFIQ"
  },
  {
   "key": "underlying",
   "label": "Underlying",
   "value": "IEF",
   "source": null
  },
  {
   "key": "segment",
   "label": "Segment",
   "value": "asset class, bond",
   "source": null
  },
  {
   "key": "net_assets",
   "label": "Net assets",
   "value": "$11m",
   "source": "issuer page, as of Sep 30, 2026"
  },
  {
   "key": "expense_ratio",
   "label": "Expense ratio",
   "value": "0.95%",
   "source": "485BPOS XBRL, Sep 25, 2026"
  },
  {
   "key": "launched",
   "label": "Launched",
   "value": "Jan 4, 2010",
   "source": null
  },
  {
   "key": "underlying_volatility_over_the_window",
   "label": "Underlying volatility over the window",
   "value": "5% annualized",
   "source": "ETFIQ"
  }
 ],
 "periods": [
  {
   "window": "1 month",
   "Fund": "+7.7%",
   "IEF": "\u22123.4%",
   "-2x the move": "+6.7%",
   "Difference": "+1.0 pts",
   "IEF moved about": "6%"
  },
  {
   "window": "3 months",
   "Fund": "+11.4%",
   "IEF": "\u22124.3%",
   "-2x the move": "+8.7%",
   "Difference": "+2.7 pts",
   "IEF moved about": "5%"
  },
  {
   "window": "6 months",
   "Fund": "+13.9%",
   "IEF": "\u22124.4%",
   "-2x the move": "+8.8%",
   "Difference": "+5.1 pts",
   "IEF moved about": "5%"
  },
  {
   "window": "1 year",
   "Fund": "+17.5%",
   "IEF": "\u22123.7%",
   "-2x the move": "+7.5%",
   "Difference": "+10.0 pts",
   "IEF moved about": "5%"
  },
  {
   "window": "3 years",
   "Fund": "+13.5%",
   "IEF": "+8.9%",
   "-2x the move": "\u221217.9%",
   "Difference": "+31.4 pts",
   "IEF moved about": "6%"
  },
  {
   "window": "Since launch",
   "Fund": "\u221245.2%",
   "IEF": "+47.1%",
   "-2x the move": "\u221294.2%",
   "Difference": "+49.1 pts",
   "IEF moved about": "7%"
  }
 ],
 "questions": [
  {
   "q": "Did PST return -2 times IEF?",
   "a": "Over the window to Sep 30, 2026, IEF moved \u22124.3% and PST returned +11.4%. \u22122 times that move is +8.7%, so the fund came out 2.7 points ahead of it."
  },
  {
   "q": "Why does PST not return -2 times over a year?",
   "a": "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."
  }
 ],
 "generated": "2026-10-01",
 "license": "https://etfiq.com/license/",
 "license_text": "Free to use with attribution. ETFIQ (etfiq.com)."
}