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Preformed Line Products Co

PLPC
Exchange
Nasdaq
Industry
Water, Sewer, Pipeline, Comm & Power Line Construction
SEC CIK
0000080035

In the last 90 days, Preformed Line Products Co insiders filed 0 open-market purchases and 1 sale; 206 institutions reported holding it in 13F filings for Q2 2026, worth $1.40B in total; no superinvestor holds it.

Four kinds of short-selling data, each measuring something different:

  • Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
  • Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
  • Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
  • ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.

More in the glossary.

Short interest

Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.

Short interest
150.2K
Shares, settlement Oct 30, 2026
Change
+6.94K
+4.8% vs. Oct 15, 2026
Days to cover
1.83
Short interest ÷ average daily volume
Average daily volume
82.0K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 37,693 sharesNov 15, 2024: 37,541 sharesNov 29, 2024: 19,454 sharesDec 13, 2024: 14,942 sharesDec 31, 2024: 22,832 sharesJan 15, 2025: 22,115 sharesJan 31, 2025: 36,379 sharesFeb 14, 2025: 68,928 sharesFeb 28, 2025: 59,940 sharesMar 14, 2025: 56,739 sharesMar 31, 2025: 99,979 sharesApr 15, 2025: 94,749 sharesApr 30, 2025: 97,150 sharesMay 15, 2025: 99,867 sharesMay 30, 2025: 103,276 sharesJun 13, 2025: 124,632 sharesJun 30, 2025: 107,342 sharesJul 15, 2025: 127,848 sharesJul 31, 2025: 167,208 sharesAug 15, 2025: 175,352 sharesAug 29, 2025: 167,592 sharesSep 15, 2025: 167,723 sharesSep 30, 2025: 159,956 sharesOct 15, 2025: 204,087 sharesOct 31, 2025: 224,341 sharesNov 14, 2025: 195,400 sharesNov 28, 2025: 195,681 sharesDec 15, 2025: 170,899 sharesDec 31, 2025: 177,964 sharesJan 15, 2026: 180,567 sharesJan 30, 2026: 204,471 sharesFeb 13, 2026: 192,262 sharesFeb 27, 2026: 193,655 sharesMar 13, 2026: 227,139 sharesMar 31, 2026: 259,068 sharesApr 15, 2026: 237,646 sharesApr 30, 2026: 207,962 sharesMay 15, 2026: 227,330 sharesMay 29, 2026: 239,996 sharesJun 15, 2026: 246,350 sharesJun 30, 2026: 230,019 sharesJul 15, 2026: 245,216 sharesJul 31, 2026: 228,156 sharesAug 14, 2026: 164,740 sharesAug 31, 2026: 151,247 sharesSep 15, 2026: 148,104 sharesSep 30, 2026: 139,596 sharesOct 15, 2026: 143,295 sharesOct 30, 2026: 150,232 shares
Short interest in PLPC by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 2026150.2K+6.94K+4.8%82.0K1.83
Oct 15, 2026143.3K+3.70K+2.7%72.7K1.97
Sep 30, 2026139.6K−8.51K−5.7%75.2K1.86
Sep 15, 2026148.1K−3.14K−2.1%66.6K2.22
Aug 31, 2026151.2K−13.5K−8.2%78.9K1.92
Aug 14, 2026164.7K−63.4K−27.8%125.0K1.32
Jul 31, 2026228.2K−17.1K−7.0%101.3K2.25
Jul 15, 2026245.2K+15.2K+6.6%89.7K2.73
Jun 30, 2026230.0K−16.3K−6.6%104.7K2.20
Jun 15, 2026246.3K+6.35K+2.7%101.7K2.42
May 29, 2026240.0K+12.7K+5.6%92.1K2.61
May 15, 2026227.3K+19.4K+9.3%114.1K1.99
Apr 30, 2026208.0K−29.7K−12.5%172.5K1.21
Apr 15, 2026237.6K−21.4K−8.3%191.9K1.24
Mar 31, 2026259.1K+31.9K+14.1%164.8K1.57
Mar 13, 2026227.1K+33.5K+17.3%166.0K1.37
Feb 27, 2026193.7K+1.39K+0.7%105.0K1.84
Feb 13, 2026192.3K−12.2K−6.0%120.0K1.60
Jan 30, 2026204.5K+23.9K+13.2%113.8K1.80
Jan 15, 2026180.6K+2.60K+1.5%107.0K1.69
Dec 31, 2025178.0K+7.07K+4.1%86.9K2.05
Dec 15, 2025170.9K−24.8K−12.7%76.2K2.24
Nov 28, 2025195.7K+281+0.1%64.0K3.06
Nov 14, 2025195.4K−28.9K−12.9%91.0K2.15
Oct 31, 2025224.3K+20.3K+9.9%112.2K2.00
Oct 15, 2025204.1K+44.1K+27.6%132.5K1.54
Sep 30, 2025160.0K−7.77K−4.6%82.4K1.94
Sep 15, 2025167.7K+131+0.1%61.6K2.72
Aug 29, 2025167.6K−7.76K−4.4%59.7K2.81
Aug 15, 2025175.4K+8.14K+4.9%39.9K4.40
Jul 31, 2025167.2K+39.4K+30.8%58.2K2.87
Jul 15, 2025127.8K+20.5K+19.1%212.9K1.00
Jun 30, 2025107.3K−17.3K−13.9%178.2K1.00
Jun 13, 2025124.6K+21.4K+20.7%121.0K1.03
May 30, 2025103.3K+3.41K+3.4%77.1K1.34
May 15, 202599.9K+2.72K+2.8%18.0K5.55
Apr 30, 202597.2K+2.40K+2.5%18.1K5.36
Apr 15, 202594.7K−5.23K−5.2%21.7K4.37
Mar 31, 2025100.0K+43.2K+76.2%46.1K2.17
Mar 14, 202556.7K−3.20K−5.3%20.1K2.82
Feb 28, 202559.9K−8.99K−13.0%13.9K4.31
Feb 14, 202568.9K+32.5K+89.5%21.6K3.19
Jan 31, 202536.4K+14.3K+64.5%54.7K1.00
Jan 15, 202522.1K−717−3.1%7.52K2.94
Dec 31, 202422.8K+7.89K+52.8%11.1K2.05
Dec 13, 202414.9K−4.51K−23.2%10.4K1.44
Nov 29, 202419.5K−18.1K−48.2%14.5K1.34
Nov 15, 202437.5K−152−0.4%11.6K3.23
Oct 31, 202437.7K+4.05K+12.0%7.35K5.13

Fails-to-deliver

Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.

Fails-to-deliver in PLPC by settlement date
Settlement dateSharesPriceValue
Sep 18, 2026493$413.03$203.6K
Sep 14, 20263$423.54$1.27K
Sep 8, 20267$398.45$2.79K
Sep 4, 202611$392.63$4.32K
Aug 17, 202656$464.63$26.0K
Aug 11, 20261,338$462.63$619.0K
Aug 4, 202643$358.15$15.4K
Jul 29, 202688$297.11$26.1K
Jul 28, 202639$311.81$12.2K
Jul 16, 20268$345.65$2.77K
Jul 6, 202692$368.77$33.9K
Jul 2, 202683$393.52$32.7K
Jul 1, 202689$410.56$36.5K
Jun 22, 202680$384.27$30.7K
Jun 1, 20264$369.82$1.48K
May 13, 20261,014$344.24$349.1K
Apr 30, 20261,536$337.29$518.1K
Apr 27, 2026215$351.17$75.5K
Apr 23, 202677$329.05$25.3K
Apr 14, 20262$311.62$623.24
Mar 23, 202639$263.09$10.3K
Mar 12, 20266$267.23$1.60K
Mar 9, 202617$235.72$4.01K
Mar 6, 2026354$249.03$88.2K
Mar 4, 202610$251.19$2.51K
Feb 27, 2026137$260.32$35.7K
Feb 12, 2026100$279.13$27.9K
Feb 9, 2026100$280.41$28.0K
Jan 21, 2026100$239.29$23.9K
Jan 16, 202664$248.18$15.9K

Daily short volume

Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.

The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.

Off-exchange short volume in PLPC by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 13, 202611,6152017,74165.5%
Nov 12, 202612,094016,86271.7%
Nov 11, 202622,057026,41883.5%
Nov 10, 202628,868037,83476.3%
Nov 9, 202618,4614325,46772.5%
Nov 6, 202612,26611919,91261.6%
Nov 5, 202619,59222134,01457.6%
Nov 4, 202628,047044,64662.8%
Nov 3, 202631,308050,38462.1%
Nov 2, 202617,21430732,70052.6%
Oct 30, 202613,49512929,52245.7%
Oct 29, 202632,2507749,51365.1%
Oct 28, 202617,689027,21165.0%
Oct 27, 202610,337018,52855.8%
Oct 26, 202616,672024,97566.8%
Oct 23, 202611,2312,71518,66760.2%
Oct 22, 202618,16735327,12467.0%
Oct 21, 20269,710016,99657.1%
Oct 20, 202615,583025,08762.1%
Oct 19, 202613,859021,55464.3%
Oct 16, 202612,231024,91349.1%
Oct 15, 202617,704025,99768.1%
Oct 14, 202613,549021,94861.7%
Oct 13, 202615,762022,92668.8%
Oct 12, 202611,139022,22050.1%
Oct 9, 202610,456018,89155.3%
Oct 8, 202617,154029,96857.2%
Oct 7, 202620,137033,18560.7%
Oct 6, 202615,340024,04363.8%
Oct 5, 202610,787017,96860.0%

ATS (dark pool) volume

Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.

Weekly ATS and OTC volume in PLPC
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T270,7178,08869,1294,95050.6%
Sep 28, 2026T257,9736,79896,4725,45037.5%
Sep 21, 2026T250,1144,626117,2295,31529.9%
Sep 14, 2026T251,2967,170135,4456,29627.5%
Sep 7, 2026T246,4896,07765,3803,43341.6%
Aug 31, 2026T259,6807,88996,0935,01938.3%
Aug 24, 2026T251,2616,432115,7875,70330.7%
Aug 17, 2026T264,9987,925122,3246,38234.7%
Aug 10, 2026T2116,62310,085178,1348,73939.6%
Aug 3, 2026T2155,93410,145112,5977,43858.1%
Jul 27, 2026T2121,42910,05994,9395,91356.1%
Jul 20, 2026T259,7555,79241,3743,19159.1%