ProShares UltraShort MidCap400 (MZZ) short interest data
ProShares UltraShort MidCap400 · Unclassified (ETFs, funds, other) · settlement date 2026-10-15
| Shares short | 590 |
|---|---|
| Change vs prior report | -681 (-53.6%) |
| Change over six months | -95.7% |
| Days to cover | 1.00 (sector: 1.07) |
| Average daily volume | 1,699 |
| Rank in Unclassified (ETFs, funds, other) | not ranked (OTC, fund or thinly traded) |
MZZ short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-10-15 | 590 | -53.6% | 1.00 | 1,699 |
| 2026-09-30 | 1,271 | -5.0% | 1.00 | 2,790 |
| 2026-09-15 | 1,338 | -36.6% | 1.00 | 6,757 |
| 2026-08-31 | 2,111 | +22.2% | 1.00 | 5,235 |
| 2026-08-14 | 1,728 | -14.2% | 1.00 | 35,740 |
| 2026-07-31 | 2,013 | -43.5% | 1.00 | 3,054 |
| 2026-07-15 | 3,562 | +147.2% | 1.00 | 6,390 |
| 2026-06-30 | 1,441 | -18.3% | 1.00 | 4,974 |
| 2026-06-15 | 1,764 | -87.3% | 1.00 | 36,795 |
| 2026-05-29 | 13,919 | +0.4% | 1.46 | 9,507 |
| 2026-05-15 | 13,869 | -32.9% | 5.51 | 2,518 |
| 2026-04-30 | 20,681 | +51.3% | 2.63 | 7,870 |
| 2026-04-15 | 13,672 | +48.0% | 1.00 | 18,332 |
| 2026-03-31 | 9,237 | -26.0% | 1.31 | 7,075 |
| 2026-03-13 | 12,486 | -24.0% | 1.55 | 8,052 |
| 2026-02-27 | 16,436 | +27.9% | 5.58 | 2,948 |
| 2026-02-13 | 12,853 | +19.6% | 1.41 | 9,100 |
| 2026-01-30 | 10,743 | -0.2% | 3.46 | 3,104 |
| 2026-01-15 | 10,764 | +1.1% | 7.29 | 1,477 |
| 2025-12-31 | 10,651 | -25.3% | 6.35 | 1,677 |
| 2025-12-15 | 14,262 | -0.0% | 8.95 | 1,593 |
| 2025-11-28 | 14,268 | -6.6% | 2.19 | 6,510 |
| 2025-11-14 | 15,283 | +1.6% | 4.19 | 3,649 |
| 2025-10-31 | 15,038 | +2.1% | 16.01 | 939 |
import finzdata as yf
yf.Ticker("MZZ").short_interest # every report since 2017
yf.Client().short_interest(["MZZ"], start="2018-01-01")Unclassified (ETFs, funds, other) short interest · MZZ price history · Who owns MZZ · All short interest