Fund · ProShares UltraShort S&P500 · measured from SEC filings
SDS holdings
SDS reports 10 holdings and behaves like 2 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-05-31. The fact sheet publishes the first number; this page computes the second, and traces it across 27 quarters of filings.
Measured concentration
as of 2026-05-31This figure is not comparable with other funds
swap and futures notional is 196% of net assets: the fund's exposure is delivered by derivatives, and a count of its filed positions does not describe it. See the exposure section for what the notional is written on
69.7% of net assets carries no asset category in the filing
The figure below is what the filing says, published unchanged. What it may not do is sit beside a plain long-only fund and be read as the same quantity. How comparability is decided.
Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 69.66% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-05-31The largest line in SDS's filing is not a stock but ProShares Genius Money Market ETF, a fund position at 92.47% of net assets. Between the 2026-02-28 and 2026-05-31 filings 5 positions were added and 4 dropped; 45.0% of the weight moved.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable unknown funds on this site. Nothing here is a view on the fund.
Every filing since 2019
27| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-05-31 * | 10 | 2 | 100% | 69.66% |
| 2026-02-28 * | 16 | 3.2 | 97.36% | 50.69% |
| 2025-11-30 * | 13 | 4.8 | 96.91% | 38.84% |
| 2025-08-31 * | 9 | 4.1 | 100% | 34.06% |
| 2025-05-31 * | 16 | 7.7 | 93.88% | 24.13% |
| 2025-02-28 * | 13 | 6.5 | 99.17% | 20.94% |
| 2024-11-30 * | 12 | 7.9 | 98.53% | 16.45% |
| 2024-08-31 * | 14 | 8.5 | 97.38% | 14.98% |
Earlier filings (19 more, back to 2019-11-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-05-31 * | 14 | 9.2 | 97.9% | 13.55% |
| 2024-02-29 * | 18 | 13.7 | 76.52% | 10.8% |
| 2023-11-30 * | 29 | 20 | 58.87% | 10.19% |
| 2023-08-31 * | 25 | 17.8 | 62.75% | 11.99% |
| 2023-05-31 * | 28 | 20.7 | 58.92% | 8.14% |
| 2023-02-28 * | 29 | 19.8 | 58.96% | 8.83% |
| 2022-11-30 * | 17 | 10.7 | 84.51% | 16.67% |
| 2022-08-31 * | 23 | 11.4 | 81.11% | 15.53% |
| 2022-05-31 * | 30 | 10.3 | 73.04% | 25.11% |
| 2022-02-28 * | 28 | 18 | 66.09% | 7.7% |
| 2021-11-30 * | 24 | 13.1 | 75.39% | 17.14% |
| 2021-08-31 * | 23 | 16.4 | 66.12% | 13.91% |
| 2021-05-31 * | 23 | 17.8 | 60.78% | 11.67% |
| 2021-02-28 * | 25 | 18.7 | 63.91% | 8.8% |
| 2020-11-30 * | 29 | 22.8 | 54.5% | 9.11% |
| 2020-08-31 * | 26 | 19.1 | 61.39% | 10.3% |
| 2020-05-31 * | 36 | 23.3 | 55.12% | 8.59% |
| 2020-02-29 * | 29 | 15.2 | 69.69% | 16.26% |
| 2019-11-30 * | 27 | 13.7 | 66.69% | 17.83% |
One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.
Largest positions, as filed
as of 2026-05-31The 7 largest of 10 positions in SDS's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: SDS.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | ProShares GENIUS Money Market ETF | 69.66% | 69.7% |
| 2 | United States of America | 9.56% | 79.2% |
| 3 | U.S. Treasury Bills | 5.19% | 84.4% |
| 4 | United States of America | 5.18% | 89.6% |
| 5 | Repurchase Agreement | 4.35% | 94.0% |
| 6 | U.S. Treasury Bills | 4.32% | 98.3% |
| 7 | U.S. Treasury Bills | 1.73% | 100.0% |
Returns the fund reported
2019-09 – 2026-05Monthly total returns from Item B.5 of SDS's own filings, 81 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: SDS.json · all funds.
Since the previous filing
2026-02-28 → 2026-05-316 positions became 7: 5 added (26.0% of the fund at the later date), 4 dropped (34.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 45.0%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of SDS compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-02-28 | 2026-05-31 | Largest decreases | 2026-02-28 | 2026-05-31 |
|---|---|---|---|---|---|
| ProShares GENIUS Money Market ETF | 50.69% | 69.66% | Repurchase Agreement | 15.16% | 4.35% |
New: United States of America (9.56%), U.S. Treasury Bills (5.19%), United States of America (5.18%), U.S. Treasury Bills (4.32%), U.S. Treasury Bills (1.73%). Gone: United States of America (19.64%), United States of America (9.61%), United States of America (4.50%), N/A (0.38%).
Asset categories and pricing
as of 2026-05-31| Asset category (as filed) | Share of investments |
|---|---|
| unknown unknown | 69.66% |
| short-term investment STIV | 25.99% |
| repurchase agreement RA | 4.35% |
69.7% of SDS is carried at a quoted market price (fair-value level 1). Categories and levels are the filer's, from Form N-PORT; what a low level-1 share does and does not mean is in the measure's page.
Derivative exposure and counterparties
as of 2026-05-31A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $433M. Notional of an interest-rate or currency swap is not equity exposure.
| Swap counterparty | Notional | % of net assets |
|---|---|---|
| UBS AG | −$244M | -56.39% |
| Wells Fargo Bank NA | −$78M | -17.93% |
| BNP PARIBAS | −$76M | -17.62% |
| CITIBANK, NATIONAL ASSOCIATION | −$76M | -17.55% |
| Goldman Sachs International | −$64M | -14.78% |
| Morgan Stanley & Co. International plc | −$58M | -13.51% |
| Bank of America NA | −$51M | -11.83% |
| JPMORGAN CHASE BANK, NATIONAL ASSOCIATION | −$50M | -11.6% |
| Barclays Bank plc | −$47M | -10.95% |
| Societe Generale SA | −$37M | -8.51% |
Financing leg as filed : the fund receives FEDL01 + 0.503% on $782M of short swap notional. Issuers fill the spread field differently (some file the all-in rate), so compare within an issuer, not across.
Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).
Neighbours by effective holdings, unknown funds
10Every measured unknown fund lined up by how many holdings it behaves like; these sit either side of SDS (2). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| HEFA iShares Currency Hedged MSCI EAFE ETF | 66 | 1 | 99.99% | 2026-07-31 |
| HEWJ iShares Currency Hedged MSCI Japan ETF | 5 | 1 | 100% | 2026-05-31 |
| HEZU iShares Currency Hedged MSCI Eurozone ETF | 5 | 1 | 100% | 2026-05-31 |
| BITO ProShares Bitcoin ETF | 5 | 1.2 * | 100% | 2026-05-31 |
| SH ProShares Short S&P500 | 8 | 1.6 * | 100% | 2026-05-31 |
| PSQ ProShares Short QQQ | 9 | 2.5 * | 100% | 2026-05-31 |
| AOK iShares Core 30/70 Conservative Allocation ETF | 8 | 2.6 | 100% | 2026-07-31 |
| DFAW Dimensional World Equity ETF | 5 | 2.8 | 100% | 2026-07-31 |
| AOM iShares Core 40/60 Moderate Allocation ETF | 8 | 3.1 | 100% | 2026-07-31 |
| SQQQ ProShares UltraPro Short QQQ | 13 | 3.3 * | 99.01% | 2026-05-31 |
Essays that examine SDS
0Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.