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Ambiq Micro, Inc. short interest

2.7M shares of Ambiq Micro were sold short at the 15 October 2026 settlement, the most since 31 Oct 2025. Short sellers would need 5.7 days of normal trading to buy them back.

Shares sold short2.7Mat 15 Oct 2026
Change on the settlement before+9.0%-74% over a year
Days to cover5.66at 470K shares a day
Of shares in issue11.02%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is the most since 31 Oct 2025, and the share price moved +51% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose. Counts before a split are restated to today's shares, the way the price is.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 31 Jul 2025 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20262.7M+9.0%470K5.66
    30 September 20262.4M+15.7%688K3.55
    15 September 20262.1M+16.6%449K4.70
    31 August 20261.8M+5.0%424K4.27
    14 August 20261.7M-2.2%434K3.98
    31 July 20261.8M-0.2%572K3.08
    15 July 20261.8M+0.1%512K3.45
    30 June 20261.8M+16.9%1.0M1.71
    15 June 20261.5M+30.7%589K2.56
    29 May 20261.2M+18.1%856K1.35
    15 May 2026978K-5.5%990K1.00
    30 April 20261.0M-12.3%323K3.20
    15 April 20261.2M-1.1%288K4.10
    31 March 20261.2M+248.9%446K2.68
    13 March 2026342K+125.4%464K1.00
    27 February 2026152K-38.4%257K1.00
    13 February 2026246K+5.2%258K1.00
    30 January 2026234K-43.1%488K1.00
    15 January 2026411K-13.1%117K3.50
    31 December 2025473K+13.2%96K4.90
    15 December 2025417K+5.6%80K5.22
    28 November 2025395K+0.6%82K4.82
    14 November 2025393K-95.8%116K3.40
    31 October 20259.5M-8.3%2.4M3.95
    15 October 202510.3M-40.3%4.7M2.19
    30 September 202517.3M+142.1%7.7M2.23
    15 September 20257.1M+80.7%6.8M1.04
    29 August 20253.9M-33.6%5.5M1.00
    15 August 20255.9M-1.8%11.7M1.00
    31 July 20256.0M22.4M1.00
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. Counts before a split are restated to today's shares. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.