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Astera Labs, Inc. short interest

8.0M shares of Astera Labs were sold short at the 15 October 2026 settlement, the fewest since 31 Jan 2025. Short sellers would need 1.8 days of normal trading to buy them back.

Shares sold short8.0Mat 15 Oct 2026
Change on the settlement before-12.7%-13% over a year
Days to cover1.81at 4.4M shares a day
Of shares in issue4.62%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 fewest since 31 Jan 2025, and the share price moved +78% 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.

How it compares

every company on the site

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    Every settlement since 28 Mar 2024 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20268.0M-12.7%4.4M1.81
    30 September 20269.2M+5.7%4.1M2.22
    15 September 20268.7M-3.8%3.9M2.24
    31 August 20269.0M+3.2%3.2M2.83
    14 August 20268.8M-3.9%4.7M1.85
    31 July 20269.1M-4.4%4.5M2.03
    15 July 20269.5M-24.9%4.6M2.07
    30 June 202612.7M+10.1%7.3M1.74
    15 June 202611.5M-3.3%5.6M2.06
    29 May 202611.9M-4.1%7.0M1.69
    15 May 202612.4M-5.4%5.7M2.17
    30 April 202613.1M-9.1%5.7M2.31
    15 April 202614.4M-6.8%5.7M2.54
    31 March 202615.5M+14.6%4.4M3.56
    13 March 202613.5M+25.6%4.9M2.77
    27 February 202610.8M-7.5%3.8M2.80
    13 February 202611.6M+9.2%7.6M1.53
    30 January 202610.7M-4.4%4.7M2.28
    15 January 202611.1M-4.9%5.0M2.23
    31 December 202511.7M-4.7%3.4M3.40
    15 December 202512.3M+1.8%7.1M1.74
    28 November 202512.1M+13.5%6.2M1.96
    14 November 202510.6M+26.7%6.4M1.66
    31 October 20258.4M-9.3%4.9M1.70
    15 October 20259.3M+3.0%7.0M1.31
    30 September 20259.0M-6.6%7.6M1.19
    15 September 20259.6M+4.5%5.4M1.79
    29 August 20259.2M+2.3%4.2M2.20
    15 August 20259.0M-3.0%7.0M1.28
    31 July 20259.3M-16.9%6.3M1.47
    15 July 202511.2M+1.2%4.0M2.79
    30 June 202511.0M+0.5%6.0M1.84
    13 June 202511.0M+3.0%3.3M3.36
    30 May 202510.7M-2.9%4.7M2.29
    15 May 202511.0M+1.9%4.8M2.27
    30 April 202510.8M+5.6%2.6M4.19
    15 April 202510.2M-5.8%4.6M2.21
    31 March 202510.8M-2.7%2.9M3.69
    14 March 202511.1M+16.4%5.2M2.12
    28 February 20259.6M+12.2%5.6M1.70
    14 February 20258.5M+10.8%6.6M1.29
    31 January 20257.7M-4.6%6.4M1.20
    15 January 20258.0M-20.0%3.2M2.53
    31 December 202410.1M+25.1%4.8M2.09
    13 December 20248.0M-3.6%4.1M1.95
    29 November 20248.3M-6.4%5.6M1.48
    15 November 20248.9M-16.3%7.4M1.21
    31 October 202410.6M+3.0%3.1M3.43
    15 October 202410.3M-6.9%4.3M2.41
    30 September 202411.1M+12.8%3.7M3.01
    13 September 20249.8M-14.4%2.9M3.38
    30 August 202411.5M+0.2%3.8M3.03
    15 August 202411.5M+10.6%3.1M3.66
    31 July 202410.4M+20.4%1.5M6.87
    15 July 20248.6M+9.0%1.3M6.86
    28 June 20247.9M+23.2%1.9M4.21
    14 June 20246.4M+23.5%1.5M4.36
    31 May 20245.2M+24.4%1.6M3.22
    15 May 20244.2M+29.2%2.7M1.56
    30 April 20243.2M+27.5%2.0M1.60
    15 April 20242.5M-20.3%1.9M1.33
    28 March 20243.2M6.2M1.00
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.