XOOMAR

Bel Fuse (BELFA)

Bel Fuse on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials and earnings dates. Listed on Nasdaq, classified by the SEC as electronic coils, transformers & other inductors.

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165K

Short interest

settlement 2026-09-30

2.0

Days to cover

unchanged vs prior

67.7%

Short share of volume

2026-10-23

4,200

Fails to deliver

settlement 2026-09-18

Wed 28 Oct

Next earnings

estimated date

As of 2026-10-23.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in BELFA is 165,373 shares, down 15,116 shares over the last month. Over the last 48 readings it ranged from 11,636 shares (15 January 2026) to 180,489 shares (31 August 2026). The latest reading sits at the top of that range. At the reported average volume of 82K shares a day that is 2.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-30165,373-4.4%81,7262.02
2026-09-15173,026-4.1%84,2032.05
2026-08-31180,489+15.4%114,3791.58
2026-08-14156,367+0.1%208,2111.00
2026-07-31156,133+5.4%168,8761.00
2026-07-15148,149+7.4%169,2731.00
2026-06-30137,926+38.1%281,6531.00
2026-06-1599,892+27.1%167,9381.00
2026-05-2978,612+1.7%132,7691.00
2026-05-1577,291+18.0%47,7231.62
2026-04-3065,525+39.1%62,0551.06
2026-04-1547,107+14.1%102,1121.00
2026-03-3141,277+4.9%68,5811.00
2026-03-1339,338+51.7%73,2111.00
2026-02-2725,927+19.3%40,3131.00
2026-02-1321,729+64.8%48,4161.00
2026-01-3013,188+13.3%65,0371.00
2026-01-1511,636-22.8%67,3801.00
2025-12-3115,070-5.0%29,3531.00
2025-12-1515,863-13.4%22,9001.00
2025-11-2818,314-3.5%42,4801.00
2025-11-1418,973-6.7%15,2921.24
2025-10-3120,324+17.4%17,2431.18
2025-10-1517,317-3.6%5,4383.18
2025-09-3017,967+10.7%7,5872.37
2025-09-1516,234-2.8%12,1141.34
2025-08-2916,696-9.6%7,2872.29
2025-08-1518,470-2.2%5,4263.40
2025-07-3118,884-19.2%8,4982.22
2025-07-1523,361-11.1%5,3824.34
2025-06-3026,279-12.9%9,8352.67
2025-06-1330,166+28.0%18,2681.65
2025-05-3023,574-6.5%3,9675.94
2025-05-1525,211-8.4%3,5737.06
2025-04-3027,531-9.8%4,1206.68
2025-04-1530,531-8.8%5,6575.40
2025-03-3133,476-15.1%4,0428.28
2025-03-1439,437-7.1%6,1316.43
2025-02-2842,470-20.6%10,2234.15
2025-02-1453,474-14.1%5,5189.69
2025-01-3162,279-18.8%12,4934.99
2025-01-1576,667-13.6%10,3117.44
2024-12-3188,683-11.9%10,5448.41
2024-12-13100,682-9.6%7,77012.96
2024-11-29111,338-12.7%10,48110.62
2024-11-15127,539-15.1%15,6918.13
2024-10-31150,278+5.0%10,13814.82
2024-10-15143,112-9.1%11,38012.58

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 23 October 2026, the short share of BELFA volume is 67.7%, up 5.1 points over the last five sessions. Over the last 30 readings it ranged from 42.3% (16 September 2026) to 78.9% (13 October 2026). The latest reading is 3.6 points above the 30-session average of 64.1%, on 12K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-238K12K67.7%0
2026-10-2214K22K66.4%0
2026-10-2123K32K70.8%0
2026-10-2010K20K47.4%0
2026-10-1913K19K69.3%0
2026-10-169K15K62.5%0
2026-10-1516K25K64.9%0
2026-10-1412K19K65.8%0
2026-10-1327K34K78.9%40
2026-10-1217K25K70.3%0
2026-10-0919K33K58.6%0
2026-10-0817K26K67.1%0
2026-10-0710K15K63.7%0
2026-10-0612K16K71.8%0
2026-10-059K14K64.8%0
2026-10-028K12K70.7%0
2026-10-019K13K68.8%0
2026-09-307K11K66.3%0
2026-09-297K10K65.3%0
2026-09-2812K23K51.6%0
2026-09-258K13K61.8%2
2026-09-249K14K67.1%0
2026-09-236K10K62.5%0
2026-09-229K16K58.0%0
2026-09-218K14K59.6%0
2026-09-187K16K42.4%0
2026-09-1717K23K74.6%0
2026-09-166K15K42.3%0
2026-09-1511K14K78.0%0
2026-09-148K13K63.9%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 18 September 2026, the fails-to-deliver balance in BELFA is 4,200 shares, down 2 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (5 June 2026) to 4,202 shares (17 September 2026). The latest reading sits at the top of that range.

SettlementShares failedPriceValue
2026-09-184,200$194.82$818K
2026-09-174,202$192.44$809K
2026-09-16284$190.92$54K
2026-09-1525$189.34$5K
2026-09-14202$208.72$42K
2026-07-3110$209.72$2K
2026-07-29196$209.95$41K
2026-07-08129$217.80$28K
2026-07-061,458$230.16$336K
2026-06-302,979$272.57$812K
2026-06-25149$257.19$38K
2026-06-09758$247.26$187K
2026-06-052$246.75$494
2026-06-04393$248.58$98K
2026-06-0228$239.24$7K
2026-06-01288$244.94$71K
2026-05-26105$252.34$26K
2026-05-193$234.49$703
2026-05-1850$230.72$12K
2026-05-0842$259.66$11K
2026-03-11701$180.02$126K
2026-02-12468$221.15$103K
2026-01-20150$182.73$27K
2026-01-08144$161.15$23K
2026-01-05474$152.89$72K
2025-12-12217$155.40$34K
2025-12-09370$149.72$55K
2025-12-08306$145.15$44K
2025-08-2172$108.06$8K
2025-08-0515$116.06$2K

Planned sales (Form 144)

Newest first. JSON

16 Form 144 notices on file for BELFA worth $17.6M at the prices reported; 3 in the last 90 days worth $489K. Latest: Vellucci Vincent filed on 2026-09-14 to sell 1,000 shares ($250K) from 2026-09-14.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-14Vellucci VincentDirector1K$250K0.008%2026-09-14The Vedder Group, Merrill Lynch, Pierce, Fenner & Smith Inc.
2026-09-02Vellucci VincentDirector393$96K0.003%2026-09-02The Vedder Group, Merrill Lynch, Pierce, Fenner & Smith Inc.
2026-08-12GILBERT PETER ESpouse of Director500$144K0.004%2026-08-12William Blair
2026-06-01Kozlovsky SuzanneOfficer731$201K0.007%2026-06-01Morgan Stanley Smith Barney LLC, Executive Financial Services
2026-03-11Lai Kenneth Koon KeungOfficer457$92K0.004%2026-03-16Morgan Stanley Smith Barney LLC, Executive Financial Services
2026-03-11Kozlovsky SuzanneOfficer558$110K0.005%2026-03-16Morgan Stanley Smith Barney LLC, Executive Financial Services
2026-03-10Dawson StephenOfficer3K$689K0.033%2026-03-16Morgan Stanley Smith Barney LLC, Executive Financial Services
2026-03-10BERNSTEIN DANIELDirector, 10% Stockholder4K$738K0.035%2026-03-16Morgan Stanley Smith Barney LLC, Executive Financial Services
2026-02-26Bittner PeterDirector22K$5.2M0.212%2026-02-25Charles Schwab Corp.
2026-02-25FAROUQ TUWEIQOfficer, Director26K$6.1M1.223%2026-02-25Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-25Tuweiq Farouq Salem AliOfficer, Director5K$1.2M0.047%2026-02-25Merrill Lynch Wealth Management
2026-02-24GILBERT PETER EDirector5K$1.0M0.043%2026-02-24William Blair
2025-12-12LYNN HUTKINOfficer5K$848K0.047%2025-12-12Morgan Stanley Smith Barney LLC Executive Financial Services
2025-11-17Berry Joseph FrancisOfficer527$78K0.005%2025-11-17Morgan Stanley Smith Barney LLC Executive Financial Services
2025-11-17BERNSTEIN DANIELDirector3K$443K0.028%2025-11-17MORGAN STANLEY SMITH BARNEY LLC, EXECUTIVE FINANCIAL SERVICES
2025-11-17Lai Kenneth Koon KeungOfficer3K$369K0.024%2025-11-17Morgan Stanley Smith Barney LLC, Executive Financial Services

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

5 holders report 5% or more of BELFA in their latest filing, all on Schedule 13G (passive). The largest reported stake is T. Rowe Price Associates, Inc. at 7.9% of the class (834,270 shares), filed 2026-02-17 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 1T. Rowe Price Investment Management, Inc.investment adviser538K4.4%2026-06-30
2026-08-1413G/Ano. 1Highbridge Capital Management, LLCinvestment adviser, other entity00.0%2026-06-30
2026-08-1313G/Ano. 2JANUS HENDERSON GROUP Ltd.parent holding company590K4.8%2026-06-30
2026-08-1313G/Ano. 1Barclays PLCparent holding company37K1.7%2026-06-30
2026-08-0613G/Ano. 1FMR LLCparent holding company876K7.1%2026-06-30
2026-08-0613G/Ano. 1Abigail P. Johnsonindividual876K7.1%2026-06-30
2026-05-1513G/Ano. 1JANUS HENDERSON GROUP PLCparent holding company760K7.2%2026-03-31
2026-04-2913GVanguard Capital Managementinvestment adviser570K5.4%2026-03-31
2026-03-2613G/Ano. 4The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-1713GT. Rowe Price Associates, Inc.investment adviser834K7.9%2025-12-31
2026-01-2813D/Ano. 59GABELLI FUNDS LLCcorporation, investment adviser64K3.0%2026-01-27
2026-01-2813D/Ano. 59GAMCO Asset Management Inc.corporation, investment adviser59K2.8%2026-01-27
2026-01-2813D/Ano. 59GAMCO INVESTORS, INC. ET ALcorporation, parent holding company00.0%2026-01-27
2026-01-2813D/Ano. 59MJG ASSOCIATES, INC.corporation6000.0%2026-01-27
2026-01-2813D/Ano. 59GGCP, INC.corporation, parent holding company00.0%2026-01-27
2026-01-2813D/Ano. 59Associated Capital Group, Inc.corporation, parent holding company00.0%2026-01-27
2026-01-2813D/Ano. 59GABELLI MARIO Jindividual00.0%2026-01-27
2025-12-0913D/Ano. 58TETON ADVISORS, LLCcorporation, investment adviser14K0.7%2025-12-09

13F holders

Tracked managers holding BELFA at their latest 13F. JSON

4 of the 30 tracked managers held BELFA at their latest 13F, $23.0M in total at quarter-end prices. Renaissance Technologies is the largest at $19.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-3066K$19.1M0.03%-3K
Citadel Advisors2026-06-306K$2.0M0.00%-27K
Point72 Asset Management2026-06-305K$1.3M0.00%+785
AQR Capital Management2026-06-302K$651K0.00%+2

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-30) Bel Fuse reported revenue of $210.7M, up 25.2% from the same quarter a year earlier, and net income of $25.5M. In FY 2025 it generated $80.6M of operating cash flow and spent $3.5M on dividends. As of 2026-06-30, cash was $306.1M against $0 of debt.

Cash
$306.1M
Debt
$0
Equity
$909.4M
Total assets
$1.26B
Shares outstanding
2,174,912

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$210.7M$25.5M12.1%n/a
Q1 FY 20262026-03-31$178.5M$11.4M6.4%n/a
Q4 FY 2025derived2025-12-31$175.9Mn/an/an/a
Q3 FY 20252025-09-30$179.0Mn/an/an/a
Q2 FY 20252025-06-30$168.3M$26.9M16.0%n/a
Q1 FY 20252025-03-31$152.2M$17.9M11.7%n/a
Q4 FY 2024derived2024-12-31$149.9M-$1.8M-1.2%n/a
Q3 FY 20242024-09-30$123.6M$8.1M6.5%n/a

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$675.5M$61.5M$80.6M$12.0M$0$3.5M
FY 20242024-12-31$534.8M$41.0M$74.1M$14.1M$16.1M$3.5M
FY 20232023-12-31$639.8M$73.8M$108.3M$12.1M$105K$3.5M
FY 20222022-12-31$654.2M$52.7M$40.3M$8.8M$349K$3.4M
FY 20212021-12-31$543.5M$24.8M$4.6M$9.4M$0$3.4M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2011-08-01 from the cover page.

What this page is

Bel Fuse in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Bel Fuse (BELFA), SEC CIK 729580, listed on Nasdaq, classified by the SEC as electronic coils, transformers & other inductors. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-18.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-14.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-07-29.JSON and CSV
Company record
EDGAR filing index for CIK 729580Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as electronic coils, transformers & other inductors

Datasets

Frequently Asked Questions

How much of BELFA is sold short?
165,373 shares were held short at the 2026-09-30 settlement, 2.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is BELFA's daily short volume?
On 2026-10-23, 7,904 of the 11,678 BELFA shares reported to FINRA were sold short, 67.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does BELFA have fails to deliver?
The SEC's latest file shows 4,200 BELFA shares failed to deliver at settlement 2026-09-18. Fails are reported per settlement date and published twice a month with a lag.
Are BELFA insiders buying or selling?
No Form 4 filings for BELFA are on record.
Have BELFA insiders filed to sell?
16 Form 144 notices on file for BELFA worth $17.6M at the prices reported; 3 in the last 90 days worth $489K. Latest: Vellucci Vincent filed on 2026-09-14 to sell 1,000 shares ($250K) from 2026-09-14.
Who owns 5% or more of BELFA?
5 holders report 5% or more of BELFA in their latest filing, all on Schedule 13G (passive). The largest reported stake is T. Rowe Price Associates, Inc. at 7.9% of the class (834,270 shares), filed 2026-02-17 for an event on 2025-12-31.
What did BELFA report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Bel Fuse reported revenue of $210.7M, up 25.2% from the same quarter a year earlier, and net income of $25.5M. In FY 2025 it generated $80.6M of operating cash flow and spent $3.5M on dividends. As of 2026-06-30, cash was $306.1M against $0 of debt.
Which tracked 13F managers own BELFA?
4 of the 30 tracked 13F managers held BELFA shares at their latest filing, $23.0M in all. The largest: Renaissance Technologies (66K shares, $19.1M), Ken Griffin's Citadel Advisors (6K shares, $2.0M), Steve Cohen's Point72 Asset Management (5K shares, $1.3M), Cliff Asness's AQR Capital Management (2K shares, $651K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.