XBI short interest
State Street SPDR S&P Biotech · Unclassified (ETFs, funds, other) · settlement date 2026-09-30
| Shares short | 74,208,736 |
|---|---|
| Change vs prior report | -1,055,429 (-1.4%) |
| Change over six months | -13.1% |
| Days to cover | 8.00 (sector: 0.98) |
| Average daily volume | 9,273,163 |
| Rank in Unclassified (ETFs, funds, other) | not ranked (OTC, fund or thinly traded) |
XBI short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 74,208,736 | -1.4% | 8.00 | 9,273,163 |
| 2026-09-15 | 75,264,165 | +1.1% | 9.91 | 7,592,310 |
| 2026-08-31 | 74,456,760 | -3.5% | 8.10 | 9,187,455 |
| 2026-08-14 | 77,134,345 | -2.2% | 10.39 | 7,427,321 |
| 2026-07-31 | 78,847,922 | +5.0% | 9.52 | 8,282,108 |
| 2026-07-15 | 75,109,557 | -0.1% | 8.34 | 9,002,285 |
| 2026-06-30 | 75,148,378 | -5.0% | 6.30 | 11,931,720 |
| 2026-06-15 | 79,068,702 | +2.7% | 9.09 | 8,699,928 |
| 2026-05-29 | 76,993,110 | +3.6% | 9.72 | 7,919,774 |
| 2026-05-15 | 74,341,107 | -0.6% | 8.73 | 8,516,494 |
| 2026-04-30 | 74,759,404 | +1.9% | 10.24 | 7,301,800 |
| 2026-04-15 | 73,334,898 | -14.2% | 7.59 | 9,661,208 |
| 2026-03-31 | 85,442,601 | +11.4% | 8.10 | 10,548,470 |
| 2026-03-13 | 76,727,653 | +0.1% | 7.35 | 10,435,987 |
| 2026-02-27 | 76,616,433 | -0.2% | 8.42 | 9,098,726 |
| 2026-02-13 | 76,806,715 | -1.7% | 9.00 | 8,538,768 |
| 2026-01-30 | 78,134,359 | -2.6% | 8.82 | 8,857,935 |
| 2026-01-15 | 80,184,169 | +3.1% | 7.08 | 11,317,821 |
| 2025-12-31 | 77,756,282 | -3.4% | 10.08 | 7,711,836 |
| 2025-12-15 | 80,476,208 | +5.7% | 7.82 | 10,291,205 |
| 2025-11-28 | 76,120,323 | -0.0% | 7.46 | 10,203,967 |
| 2025-11-14 | 76,138,417 | +10.4% | 5.80 | 13,121,589 |
| 2025-10-31 | 68,946,860 | -4.6% | 6.99 | 9,870,677 |
| 2025-10-15 | 72,301,700 | -6.7% | 6.81 | 10,623,558 |
| 2025-09-30 | 77,523,328 | +6.1% | 7.75 | 10,006,918 |
import finzdata as yf
yf.Ticker("XBI").short_interest # every report since 2017
yf.Client().short_interest(["XBI"], start="2018-01-01")Unclassified (ETFs, funds, other) short interest · XBI price history · Who owns XBI · All short interest