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Stock research / United States / FSTR / Short interest

L.B. Foster Co. short interest

233K shares of L.B. Foster were sold short at the 15 October 2026 settlement, the fewest since 15 Jun 2026. Short sellers would need 4.1 days of normal trading to buy them back.

Shares sold short233Kat 15 Oct 2026
Change on the settlement before-19.5%+45% over a year
Days to cover4.09at 57K shares a day
Of shares in issue2.25%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 15 Jun 2026, and the share price moved +31% 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 2026233K-19.5%57K4.09
    30 September 2026290K-2.6%43K6.73
    15 September 2026298K+6.1%38K7.90
    31 August 2026280K+13.0%54K5.23
    14 August 2026248K-5.7%95K2.61
    31 July 2026263K-1.4%70K3.74
    15 July 2026267K+8.3%73K3.68
    30 June 2026246K+39.2%125K1.98
    15 June 2026177K+93.5%77K2.30
    29 May 202692K+14.0%125K1.00
    15 May 202680K-29.6%142K1.00
    30 April 2026114K+6.9%151K1.00
    15 April 2026107K-28.7%106K1.01
    31 March 2026150K-12.8%45K3.36
    13 March 2026172K+17.9%28K6.18
    27 February 2026146K-14.7%16K9.13
    13 February 2026171K+6.7%21K8.05
    30 January 2026160K-8.3%18K8.84
    15 January 2026175K+2.0%20K8.75
    31 December 2025171K+1.5%19K9.13
    15 December 2025169K+12.0%33K5.11
    28 November 2025151K+2.3%24K6.24
    14 November 2025147K-2.9%27K5.44
    31 October 2025152K-5.7%23K6.55
    15 October 2025161K+2.8%21K7.62
    30 September 2025157K-8.5%31K4.98
    15 September 2025171K+9.5%29K5.93
    29 August 2025156K+2.6%32K4.85
    15 August 2025152K-15.6%36K4.23
    31 July 2025181K+6.1%30K6.08
    15 July 2025170K+1.2%26K6.48
    30 June 2025168K+31.6%42K3.96
    13 June 2025128K+33.1%22K5.88
    30 May 202596K-13.8%21K4.47
    15 May 2025111K-14.5%33K3.34
    30 April 2025130K+14.7%36K3.67
    15 April 2025114K-2.2%62K1.84
    31 March 2025116K-12.0%49K2.38
    14 March 2025132K+14.3%52K2.53
    28 February 2025115K-4.0%45K2.54
    14 February 2025120K+9.9%31K3.93
    31 January 2025109K-16.3%39K2.81
    15 January 2025131K+1.1%28K4.73
    31 December 2024129K+18.5%30K4.27
    13 December 2024109K-23.5%46K2.35
    29 November 2024143K-14.2%39K3.70
    15 November 2024166K-2.0%56K2.94
    31 October 2024170K-20.7%30K5.59
    15 October 2024214K-17.8%34K6.36
    30 September 2024260K+10.5%67K3.88
    13 September 2024236K-3.0%38K6.24
    30 August 2024243K+3.2%43K5.70
    15 August 2024235K+25.3%87K2.71
    31 July 2024188K-3.3%44K4.27
    15 July 2024194K+130.5%76K2.57
    28 June 202484K-20.7%250K1.00
    14 June 2024106K+9.1%45K2.36
    31 May 202497K-11.0%47K2.05
    15 May 2024109K+6.9%70K1.55
    30 April 2024102K+11.6%43K2.36
    15 April 202492K-32.1%39K2.33
    28 March 2024135K+48.2%48K2.82
    15 March 202491K+7.9%51K1.77
    29 February 202485K-6.6%36K2.37
    15 February 202490K+33.8%29K3.08
    31 January 202468K+10.3%36K1.88
    12 January 202461K+113.9%41K1.49
    29 December 202329K+26.5%41K1.00
    15 December 202323K+96.2%34K1.00
    30 November 202312K-22.0%33K1.00
    15 November 202315K+7.4%37K1.00
    31 October 202314K+40.0%17K1.00
    13 October 202310K+37.1%21K1.00
    29 September 20237K-41.1%28K1.00
    15 September 202312K-54.6%19K1.00
    31 August 202327K+92.6%38K1.00
    15 August 202314K-9.9%37K1.00
    31 July 202315K+126.0%20K1.00
    14 July 20237K-46.9%12K1.00
    30 June 202313K+154.9%15K1.00
    15 June 20235K-79.5%22K1.00
    31 May 202325K-9.9%57K1.00
    15 May 202327K+4.6%13K2.10
    28 April 202326K+1.8%9K2.80
    14 April 202326K-2.1%7K3.47
    31 March 202326K-24.4%9K3.01
    15 March 202335K-10.7%14K2.47
    28 February 202339K+14.3%11K3.55
    15 February 202334K+3.6%11K3.07
    31 January 202333K+37.7%27K1.23
    13 January 202324K+14.4%30K1.00
    30 December 202221K-3.0%27K1.00
    15 December 202222K-3.0%45K1.00
    30 November 202222K-31.8%35K1.00
    15 November 202233K+60.0%14K2.33
    31 October 202220K-24.7%17K1.21
    14 October 202227K+12.5%23K1.17
    30 September 202224K-22.2%20K1.20
    15 September 202231K-20.2%12K2.66
    31 August 202239K-29.0%11K3.57
    15 August 202255K-10.1%10K5.41
    29 July 202261K-13.7%10K6.11
    15 July 202270K+38.7%9K7.59
    30 June 202251K+7.7%20K2.57
    15 June 202247K+2.6%18K2.65
    31 May 202246K+26.9%16K2.90
    13 May 202236K-6.4%27K1.33
    29 April 202239K-23.4%21K1.86
    14 April 202250K-0.7%29K1.75
    31 March 202251K-12.3%22K2.33
    15 March 202258K-11.1%23K2.46
    28 February 202265K-23.7%18K3.60
    15 February 202285K+1.2%14K5.93
    31 January 202284K+6.7%36K2.37
    14 January 202279K+58.9%34K2.31
    31 December 202150K+22.9%42K1.19
    15 December 202140K-26.0%43K1.00
    30 November 202155K-11.7%39K1.40
    15 November 202162K+27.4%25K2.51
    29 October 202149K-39.5%32K1.50
    15 October 202180K+58.3%29K2.82
    30 September 202151K+4.0%50K1.01
    15 September 202149K+34.5%30K1.60
    31 August 202136K-39.6%20K1.83
    13 August 202160K+62.9%37K1.63
    30 July 202137K-76.9%41K1.00
    15 July 2021160K+181.8%56K2.85
    30 June 202157K-80.5%204K1.00
    15 June 2021291K+2.4%52K5.64
    28 May 2021285K+3.6%66K4.32
    14 May 2021275K+17.5%79K3.46
    30 April 2021234K+15.7%75K3.14
    15 April 2021202K+55.7%71K2.86
    31 March 2021130K+40.2%114K1.14
    15 March 202193K-15.2%61K1.51
    26 February 2021109K+13.2%37K2.97
    12 February 202196K+9.7%39K2.46
    29 January 202188K-74.0%36K2.47
    15 January 2021339K+39.2%63K5.37
    31 December 2020243K+33.0%41K5.89
    15 December 2020183K+9.2%28K6.60
    30 November 2020167K-7.7%30K5.62
    13 November 2020182K+7.3%29K6.18
    30 October 2020169K-0.3%25K6.83
    15 October 2020170K+3.1%31K5.50
    30 September 2020165K-12.8%23K7.03
    15 September 2020189K-11.3%21K8.84
    31 August 2020213K-1.6%26K8.19
    14 August 2020216K+29.2%31K7.05
    31 July 2020167K+2.7%20K8.28
    15 July 2020163K-0.4%25K6.62
    30 June 2020164K+9.3%37K4.40
    15 June 2020150K+6.0%33K4.59
    29 May 2020141K+1.5%30K4.75
    15 May 2020139K+49.7%43K3.25
    30 April 202093K-1.4%32K2.93
    15 April 202094K+22.4%43K2.19
    31 March 202077K-21.2%59K1.32
    13 March 202098K+14.6%32K3.06
    28 February 202085K+1.8%31K2.78
    14 February 202084K-3.0%23K3.71
    31 January 202086K+14.5%23K3.76
    15 January 202075K+82.8%28K2.67
    31 December 201941K-32.4%25K1.64
    13 December 201961K-1.9%29K2.12
    29 November 201962K-1.6%20K3.08
    15 November 201963K-11.5%21K2.94
    31 October 201971K-20.6%25K2.81
    15 October 201990K-10.9%27K3.38
    30 September 2019101K-12.2%33K3.03
    13 September 2019115K+7.4%30K3.80
    30 August 2019107K-8.0%27K3.95
    15 August 2019116K+30.7%35K3.32
    31 July 201989K-16.7%53K1.68
    15 July 2019107K+5.9%48K2.23
    28 June 2019101K+22.0%59K1.70
    14 June 201983K-27.0%55K1.51
    31 May 2019113K+7.1%65K1.75
    15 May 2019106K+106.1%66K1.60
    30 April 201951K-17.7%47K1.09
    15 April 201962K+14.3%67K1.00
    29 March 201955K+18.5%73K1.00
    15 March 201946K+0.8%34K1.35
    28 February 201946K-12.6%27K1.70
    15 February 201952K+0.5%23K2.27
    31 January 201952K-6.4%17K3.02
    15 January 201956K+4.1%30K1.86
    31 December 201853K-5.8%40K1.34
    14 December 201857K-18.3%31K1.85
    30 November 201869K+1.0%15K4.69
    15 November 201869K+37.5%30K2.30
    31 October 201850K+0.2%21K2.37
    15 October 201850K-14.9%22K2.27
    28 September 201859K+29.4%23K2.57
    14 September 201845K+6.3%16K2.83
    31 August 201843K-29.6%19K2.24
    15 August 201861K-10.0%23K2.62
    31 July 201867K-24.1%27K2.49
    13 July 201889K-21.0%32K2.75
    29 June 2018112K+99.2%65K1.72
    15 June 201856K+19.1%27K2.08
    31 May 201847K+44.0%23K2.05
    15 May 201833K-13.5%30K1.11
    30 April 201838K-14.8%26K1.47
    13 April 201845K+1.0%38K1.17
    29 March 201844K-45.0%46K1.00
    15 March 201880K+22.9%59K1.35
    28 February 201865K-31.3%49K1.32
    15 February 201895K+20.7%39K2.45
    31 January 201879K-19.8%37K2.10
    12 January 201898K+4.2%34K2.85
    29 December 201794K46K2.03
    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.