Federal Data Hub › FINRA Short Volume · JSON

ACMR — short-sale volume

50.64% of volume short-marked (60-day avg)

Latest day (2026-06-24)

56.3%

Peak short %

69.37% on 2026-05-19

Total short volume

19,437,398

Total volume

38,387,236

Window

2026-03-30 – 2026-06-24 (60 days)

About this data

FINRA publishes daily consolidated (CNMS) short-sale volume — the share of each day's reported trading volume that was marked "short." This page aggregates the rolling ~60-trading-day window. Important: short volume includes bona-fide market-maker hedging and is not the same as short interest (shares sold short and not yet covered); high percentages are common and routine. For settlement failures on this security, see its fails-to-deliver.

Source: FINRA Short Sale Volume. License: CC0 1.0.