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Ultralife Corp. short interest

90K shares of Ultralife were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (64K to 145K). Short sellers would need 3.9 days of normal trading to buy them back.

Shares sold short90Kat 15 Oct 2026
Change on the settlement before-11.9%-34% over a year
Days to cover3.92at 23K shares a day
Of shares in issue0.54%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 near the middle of its range over the last year (64K to 145K), and the share price moved +121% 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

    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 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202690K-11.9%23K3.92
    30 September 2026102K-2.5%50K2.03
    15 September 2026105K-5.5%40K2.60
    31 August 2026111K+19.8%30K3.65
    14 August 202692K+44.4%64K1.45
    31 July 202664K-7.8%28K2.26
    15 July 202669K-1.4%28K2.49
    30 June 202670K+6.8%21K3.29
    15 June 202666K-25.6%30K2.24
    29 May 202689K+1.2%100K1.00
    15 May 202688K+10.2%52K1.69
    30 April 202679K-0.7%23K3.44
    15 April 202680K-12.1%27K2.99
    31 March 202691K+7.2%63K1.44
    13 March 202685K-6.1%83K1.03
    27 February 202690K+0.2%27K3.30
    13 February 202690K+9.0%26K3.54
    30 January 202683K-16.5%47K1.77
    15 January 202699K-30.3%47K2.10
    31 December 2025142K-2.1%38K3.78
    15 December 2025145K+13.3%27K5.36
    28 November 2025128K+21.5%67K1.93
    14 November 2025106K-8.4%53K2.01
    31 October 2025115K-15.4%39K2.93
    15 October 2025136K+5.8%67K2.04
    30 September 2025129K-14.6%37K3.45
    15 September 2025151K-4.9%61K2.46
    29 August 2025159K-3.2%61K2.59
    15 August 2025164K-12.4%70K2.33
    31 July 2025187K-4.4%52K3.62
    15 July 2025196K+13.7%60K3.26
    30 June 2025172K-51.5%283K1.00
    13 June 2025355K-7.4%116K3.05
    30 May 2025383K+22.1%96K3.97
    15 May 2025314K+10.1%60K5.23
    30 April 2025285K+1.6%73K3.91
    15 April 2025280K-11.5%93K3.02
    31 March 2025317K+9.7%47K6.81
    14 March 2025289K+0.8%58K5.00
    28 February 2025286K+32.8%52K5.46
    14 February 2025216K+5.0%49K4.38
    31 January 2025205K+8.6%43K4.75
    15 January 2025189K+5.1%49K3.85
    31 December 2024180K-0.8%58K3.11
    13 December 2024181K+19.3%46K3.92
    29 November 2024152K-9.8%61K2.48
    15 November 2024168K-2.7%95K1.77
    31 October 2024173K-0.8%36K4.78
    15 October 2024174K-11.7%61K2.87
    30 September 2024197K-5.7%83K2.37
    13 September 2024209K-8.2%48K4.37
    30 August 2024228K-5.6%44K5.16
    15 August 2024242K-4.5%56K4.28
    31 July 2024253K-9.5%95K2.66
    15 July 2024280K+238.1%84K3.33
    28 June 202483K+37.2%241K1.00
    14 June 202460K+9.1%63K1.00
    31 May 202455K-25.9%77K1.00
    15 May 202475K-7.1%134K1.00
    30 April 202480K+22.7%141K1.00
    15 April 202465K-38.0%63K1.04
    28 March 2024106K-18.1%42K2.48
    15 March 2024129K-14.7%87K1.48
    29 February 2024151K-2.9%58K2.62
    15 February 2024156K+3.1%63K2.45
    31 January 2024151K-9.2%37K4.08
    12 January 2024166K+6.1%65K2.54
    29 December 2023157K-4.8%61K2.55
    15 December 2023165K-7.8%57K2.89
    30 November 2023179K-5.5%68K2.62
    15 November 2023189K-9.5%75K2.52
    31 October 2023209K-20.4%171K1.22
    13 October 2023262K+64.9%152K1.72
    29 September 2023159K+2.3%82K1.95
    15 September 2023155K+26.3%189K1.00
    31 August 2023123K+43.0%163K1.00
    15 August 202386K-67.7%114K1.00
    31 July 2023267K+481.7%910K1.00
    14 July 202346K+8.4%17K2.67
    30 June 202342K-22.9%22K1.91
    15 June 202355K+160.9%39K1.43
    31 May 202321K-13.5%12K1.81
    15 May 202324K+43.4%13K1.85
    28 April 202317K-30.4%14K1.23
    14 April 202324K+35.2%12K2.06
    31 March 202318K-23.2%20K1.00
    15 March 202323K+35.9%35K1.00
    28 February 202317K-11.2%12K1.48
    15 February 202319K-16.2%17K1.14
    31 January 202323K+16.9%20K1.16
    13 January 202320K-14.6%25K1.00
    30 December 202223K+2.6%44K1.00
    15 December 202223K+5.6%61K1.00
    30 November 202221K-19.1%31K1.00
    15 November 202227K-7.5%17K1.57
    31 October 202229K-53.0%17K1.72
    14 October 202261K+14.9%19K3.24
    30 September 202253K+19.6%27K1.97
    15 September 202244K+25.8%17K2.56
    31 August 202235K+10.7%25K1.40
    15 August 202232K+6.0%40K1.00
    29 July 202230K-17.6%16K1.93
    15 July 202237K+12.6%15K2.51
    30 June 202232K-18.7%23K1.40
    15 June 202240K-2.1%25K1.62
    31 May 202241K+4.2%21K1.96
    13 May 202239K-15.7%12K3.34
    29 April 202246K-3.1%15K3.01
    14 April 202248K-21.4%10K5.01
    31 March 202261K-23.2%16K3.83
    15 March 202280K-29.5%20K3.89
    28 February 2022113K+18.3%60K1.87
    15 February 202295K-17.3%34K2.80
    31 January 2022115K+25.1%25K4.59
    14 January 202292K-15.5%22K4.20
    31 December 2021109K+46.4%50K2.18
    15 December 202174K+6.3%58K1.28
    30 November 202170K-1.6%39K1.82
    15 November 202171K-27.5%45K1.57
    29 October 202198K+3.8%46K2.12
    15 October 202195K-9.3%18K5.23
    30 September 2021104K-30.4%52K1.99
    15 September 2021150K+17.9%44K3.44
    31 August 2021127K-19.1%24K5.28
    13 August 2021157K+0.5%52K3.00
    30 July 2021156K+1.1%49K3.19
    15 July 2021155K-6.6%69K2.23
    30 June 2021166K-59.2%199K1.00
    15 June 2021406K-27.6%118K3.43
    28 May 2021560K+65.1%3.5M1.00
    14 May 2021340K+17.6%48K7.09
    30 April 2021289K+24.7%50K5.77
    15 April 2021232K+39.7%59K3.90
    31 March 2021166K+0.2%118K1.41
    15 March 2021166K+0.3%110K1.50
    26 February 2021165K+21.8%66K2.50
    12 February 2021135K+23.0%235K1.00
    29 January 2021110K-3.9%85K1.29
    15 January 2021115K+21.7%86K1.33
    31 December 202094K-4.4%47K2.02
    15 December 202099K-16.0%40K2.47
    30 November 2020117K-1.9%175K1.00
    13 November 2020120K-7.0%29K4.18
    30 October 2020129K-4.5%20K6.54
    15 October 2020135K-0.1%18K7.67
    30 September 2020135K-12.7%36K3.70
    15 September 2020154K-5.9%19K8.03
    31 August 2020164K-3.5%17K9.76
    14 August 2020170K-3.2%18K9.32
    31 July 2020176K-2.4%16K10.95
    15 July 2020180K-11.3%42K4.29
    30 June 2020203K+95.1%140K1.45
    15 June 2020104K-0.2%37K2.83
    29 May 2020104K+3.9%34K3.03
    15 May 2020100K+11.8%31K3.21
    30 April 202090K-2.8%13K6.81
    15 April 202092K-12.2%30K3.12
    31 March 2020105K-7.8%39K2.67
    13 March 2020114K-2.2%30K3.81
    28 February 2020117K-7.1%57K2.04
    14 February 2020125K-6.5%30K4.17
    31 January 2020134K-1.7%17K8.12
    15 January 2020137K-4.5%13K10.39
    31 December 2019143K+5.0%19K7.67
    13 December 2019136K+5.4%23K6.01
    29 November 2019129K-3.9%18K7.37
    15 November 2019134K+4.5%25K5.35
    31 October 2019128K+4.6%12K10.64
    15 October 2019123K+9.9%10K12.13
    30 September 2019112K-4.1%23K4.78
    13 September 2019117K-4.2%20K5.75
    30 August 2019122K+53.3%24K5.17
    15 August 201979K+3.9%34K2.36
    31 July 201976K-10.4%18K4.22
    15 July 201985K-16.7%17K4.95
    28 June 2019102K+24.2%52K1.96
    14 June 201982K+9.7%44K1.87
    31 May 201975K-2.2%23K3.20
    15 May 201977K+4.6%89K1.00
    30 April 201973K+0.1%52K1.42
    15 April 201973K+52.3%40K1.82
    29 March 201948K+29.7%30K1.62
    15 March 201937K-15.2%57K1.00
    28 February 201944K+197.7%150K1.00
    15 February 201915K-2.7%46K1.00
    31 January 201915K-35.8%39K1.00
    15 January 201924K+34.5%28K1.00
    31 December 201817K+17.5%28K1.00
    14 December 201815K-30.4%28K1.00
    30 November 201821K-11.9%18K1.19
    15 November 201824K-17.3%30K1.00
    31 October 201829K+65.6%24K1.25
    15 October 201818K+14.3%42K1.00
    28 September 201816K+14.0%10K1.50
    14 September 201814K+3.9%18K1.00
    31 August 201813K-57.0%40K1.00
    15 August 201830K+22.4%22K1.35
    31 July 201825K-26.7%10K2.57
    13 July 201834K-9.1%23K1.50
    29 June 201837K-0.3%30K1.26
    15 June 201837K+5.5%33K1.13
    31 May 201835K+17.0%24K1.49
    15 May 201830K+66.1%50K1.00
    30 April 201818K-23.3%42K1.00
    13 April 201824K-29.1%58K1.00
    29 March 201834K-38.7%74K1.00
    15 March 201855K+22.1%45K1.21
    28 February 201845K+0.8%32K1.41
    15 February 201845K+65.5%33K1.35
    31 January 201827K-16.9%31K1.00
    12 January 201832K+9.7%35K1.00
    29 December 201729K21K1.41
    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.