BLK short interest

BlackRock Inc. · Financial Services · Asset Management · settlement date 2026-09-30

Shares short2,040,215
Change vs prior report136 (+0.0%)
Change over six months+14.7%
Days to cover3.61 (sector: 2.70)
Average daily volume565,587
Rank in Financial Services#376 of 1,016 by days to cover

BLK short interest, last 12 months

SettlementShares shortChangeDays to coverAvg daily volume
2026-09-302,040,215+0.0%3.61565,587
2026-09-152,040,079+6.7%4.03506,301
2026-08-311,911,216+5.4%3.25587,410
2026-08-141,813,402-16.7%3.13579,081
2026-07-312,176,024+3.9%2.78782,086
2026-07-152,095,185+1.0%2.59808,320
2026-06-302,073,854+3.2%1.971,054,346
2026-06-152,009,447-0.1%2.79720,892
2026-05-292,010,666-7.0%2.89696,220
2026-05-152,161,477+25.2%4.01538,427
2026-04-301,726,799-9.9%2.81613,915
2026-04-151,916,015+7.7%2.40799,686
2026-03-311,778,312+15.0%1.93923,170
2026-03-131,546,747+6.9%1.391,115,763
2026-02-271,446,441-1.7%1.86778,745
2026-02-131,471,790-2.1%1.65892,248
2026-01-301,503,354+21.9%2.01748,061
2026-01-151,233,437+1.4%1.56789,247
2025-12-311,216,184-3.9%2.56475,003
2025-12-151,264,999-30.6%2.03622,979
2025-11-281,822,480+46.8%2.35776,780
2025-11-141,241,874+3.2%2.33532,020
2025-10-311,203,585-5.3%1.64734,703
2025-10-151,271,499-16.3%1.91664,495
2025-09-301,519,109-28.7%2.53599,892
import finzdata as yf
yf.Ticker("BLK").short_interest          # every report since 2017
yf.Client().short_interest(["BLK"], start="2018-01-01")

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