Quanterix (QTRX)
Quanterix on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as laboratory analytical instruments.
5.0M
Short interest
settlement 2026-09-30
7.4
Days to cover
+3.2 days vs prior
32.4%
Short share of volume
2026-10-09
531
Fails to deliver
settlement 2026-09-14
Mon 9 Nov
Next earnings
estimated date
$286K
Insider flow, 90 days
2 buys, 0 sells
As of 2026-10-09.
Short interest
FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in QTRX is 5,046,958 shares, up 229,447 shares over the last month. Over the last 48 readings it ranged from 1,979,912 shares (13 December 2024) to 5,148,797 shares (15 May 2026). The latest reading sits at the top of that range. At the reported average volume of 680K shares a day that is 7.4 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/qtrx" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 5,046,958 | +1.4% | 679,618 | 7.43 |
| 2026-09-15 | 4,976,711 | +3.3% | 1,175,595 | 4.23 |
| 2026-08-31 | 4,817,511 | +1.8% | 577,581 | 8.34 |
| 2026-08-14 | 4,734,398 | +5.1% | 1,098,048 | 4.31 |
| 2026-07-31 | 4,504,825 | +3.9% | 496,598 | 9.07 |
| 2026-07-15 | 4,337,091 | +0.2% | 469,133 | 9.24 |
| 2026-06-30 | 4,327,379 | -3.4% | 1,666,519 | 2.60 |
| 2026-06-15 | 4,478,023 | -11.5% | 900,277 | 4.97 |
| 2026-05-29 | 5,057,385 | -1.8% | 1,253,605 | 4.03 |
| 2026-05-15 | 5,148,797 | +12.0% | 1,740,836 | 2.96 |
| 2026-04-30 | 4,598,830 | +6.8% | 1,024,468 | 4.49 |
| 2026-04-15 | 4,304,442 | -0.3% | 927,343 | 4.64 |
| 2026-03-31 | 4,315,137 | +5.2% | 900,827 | 4.79 |
| 2026-03-13 | 4,102,691 | -0.4% | 696,809 | 5.89 |
| 2026-02-27 | 4,117,679 | +5.4% | 521,531 | 7.90 |
| 2026-02-13 | 3,907,998 | +9.2% | 557,533 | 7.01 |
| 2026-01-30 | 3,579,060 | +4.8% | 736,038 | 4.86 |
| 2026-01-15 | 3,415,028 | +3.8% | 802,194 | 4.26 |
| 2025-12-31 | 3,291,690 | -4.1% | 564,221 | 5.83 |
| 2025-12-15 | 3,433,884 | +8.1% | 730,647 | 4.70 |
| 2025-11-28 | 3,177,950 | -9.9% | 964,473 | 3.30 |
| 2025-11-14 | 3,525,935 | -6.2% | 595,615 | 5.92 |
| 2025-10-31 | 3,758,615 | -3.2% | 548,981 | 6.85 |
| 2025-10-15 | 3,882,809 | -4.8% | 482,363 | 8.05 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 9 October 2026, the short share of QTRX volume is 32.4%, down 25.8 points over the last five sessions. Over the last 30 readings it ranged from 13.4% (1 September 2026) to 74.0% (10 September 2026). The latest reading is 11.6 points below the 30-session average of 44.0%, on 81K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-09 | 26K | 81K | 32.4% | 15 |
| 2026-10-08 | 52K | 92K | 56.4% | 3,300 |
| 2026-10-07 | 145K | 212K | 68.5% | 78,049 |
| 2026-10-06 | 121K | 214K | 56.4% | 8,990 |
| 2026-10-05 | 136K | 341K | 40.0% | 100 |
| 2026-10-02 | 121K | 207K | 58.1% | 0 |
| 2026-10-01 | 124K | 223K | 55.6% | 19 |
| 2026-09-30 | 119K | 198K | 59.9% | 0 |
| 2026-09-29 | 150K | 313K | 47.9% | 3,150 |
| 2026-09-28 | 119K | 566K | 21.0% | 0 |
| 2026-09-25 | 156K | 211K | 73.9% | 479 |
| 2026-09-24 | 78K | 146K | 53.9% | 9 |
| 2026-09-23 | 85K | 159K | 53.4% | 75 |
| 2026-09-22 | 55K | 136K | 40.2% | 2 |
| 2026-09-21 | 60K | 210K | 28.8% | 31 |
| 2026-09-18 | 68K | 223K | 30.7% | 3,892 |
| 2026-09-17 | 181K | 400K | 45.2% | 1,397 |
| 2026-09-16 | 105K | 370K | 28.3% | 430 |
| 2026-09-15 | 170K | 461K | 37.0% | 0 |
| 2026-09-14 | 305K | 2.0M | 15.4% | 0 |
| 2026-09-11 | 72K | 127K | 56.9% | 45 |
| 2026-09-10 | 157K | 212K | 74.0% | 190 |
| 2026-09-09 | 37K | 92K | 40.1% | 10 |
| 2026-09-08 | 227K | 320K | 70.9% | 0 |
| 2026-09-04 | 43K | 104K | 40.9% | 0 |
| 2026-09-03 | 108K | 622K | 17.4% | 500 |
| 2026-09-02 | 81K | 185K | 44.1% | 0 |
| 2026-09-01 | 91K | 677K | 13.4% | 59 |
| 2026-08-31 | 64K | 171K | 37.7% | 0 |
| 2026-08-28 | 27K | 117K | 23.1% | 18 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 September 2026, the fails-to-deliver balance in QTRX is 531 shares, up 80 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (14 May 2026) to 95,475 shares (29 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-14 | 531 | $2.56 | $1K |
| 2026-09-10 | 451 | $2.65 | $1K |
| 2026-09-08 | 2,116 | $2.69 | $6K |
| 2026-09-04 | 85 | $2.58 | $219 |
| 2026-09-02 | 14 | $2.51 | $35 |
| 2026-08-31 | 10,471 | $2.64 | $28K |
| 2026-08-13 | 2,381 | $2.93 | $7K |
| 2026-08-12 | 36,262 | $2.63 | $95K |
| 2026-08-06 | 2,337 | $3.76 | $9K |
| 2026-08-04 | 8,533 | $3.71 | $32K |
| 2026-07-29 | 10 | $3.49 | $35 |
| 2026-07-16 | 258 | $4.24 | $1K |
| 2026-07-07 | 21,860 | $4.29 | $94K |
| 2026-06-18 | 17,053 | $2.88 | $49K |
| 2026-06-17 | 757 | $3.06 | $2K |
| 2026-06-15 | 640 | $3.10 | $2K |
| 2026-06-05 | 3,612 | $3.80 | $14K |
| 2026-05-29 | 95,475 | $3.05 | $291K |
| 2026-05-19 | 4,078 | $2.52 | $10K |
| 2026-05-18 | 76 | $2.75 | $209 |
| 2026-05-14 | 5 | $2.88 | $14 |
| 2026-05-11 | 389 | $2.83 | $1K |
| 2026-04-27 | 9,839 | $3.28 | $32K |
| 2026-04-13 | 5,827 | $3.36 | $20K |
| 2026-03-12 | 6,370 | $5.01 | $32K |
| 2026-03-11 | 4,905 | $5.02 | $25K |
| 2026-03-10 | 999 | $5.10 | $5K |
| 2026-03-09 | 3,947 | $5.06 | $20K |
| 2026-03-06 | 201 | $5.31 | $1K |
| 2026-02-23 | 35 | $5.76 | $202 |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONInsiders at QTRX reported 2 open-market buys worth $286K in the last 90 days and no open-market sells. Latest filing: Magovcevic-Liebisch Ivana (Director) on 2026-10-02.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-02 | Magovcevic-Liebisch Ivana | Director | Option exercise | 4K | price not stated in the filing | not stated | 16K |
| 2026-10-01 | Mendel Scott | Director | Grant | 4K | $3.41 | $15K | 28K |
| 2026-10-01 | DONNELLY WILLIAM P | Director | Grant | 7K | $3.41 | $24K | 169K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $2.72 | $112 | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 249 | $2.72 | $677 | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 834 | price not stated in the filing | not stated | 39K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 111 | $2.72 | $302 | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 372 | price not stated in the filing | not stated | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 135 | price not stated in the filing | not stated | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $2.72 | $112 | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 136 | price not stated in the filing | not stated | 38K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 25 | $2.72 | $68 | 37K |
| 2026-09-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 81 | price not stated in the filing | not stated | 37K |
| 2026-08-31 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 48 | $2.67 | $128 | 37K |
| 2026-08-31 | Miller Michael Francis | Chief Technology Officer | Option exercise | 159 | price not stated in the filing | not stated | 37K |
| 2026-08-19 | Elliott Jeffrey Thomas | Director | Option exercise | 4K | price not stated in the filing | not stated | 15K |
| 2026-08-17 | DONNELLY WILLIAM P | Director | Option exercise | 3K | price not stated in the filing | not stated | 162K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $2.59 | $106 | 36K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 249 | $2.59 | $645 | 37K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 834 | price not stated in the filing | not stated | 37K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 111 | $2.59 | $287 | 37K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 372 | price not stated in the filing | not stated | 37K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 135 | price not stated in the filing | not stated | 36K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $2.59 | $106 | 36K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 136 | price not stated in the filing | not stated | 36K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 25 | $2.59 | $65 | 36K |
| 2026-08-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 81 | price not stated in the filing | not stated | 36K |
| 2026-08-13 | DONNELLY WILLIAM P | Director | Buy | 72K | $2.93 | $212K | 99K |
| 2026-08-12 | DONNELLY WILLIAM P | Director | Buy | 27K | $2.75 | $75K | 27K |
| 2026-07-31 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 39 | $3.48 | $136 | 36K |
| 2026-07-31 | Miller Michael Francis | Chief Technology Officer | Option exercise | 130 | price not stated in the filing | not stated | 36K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $4.24 | $174 | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 249 | $4.24 | $1K | 36K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 834 | price not stated in the filing | not stated | 36K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 111 | $4.24 | $471 | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 372 | price not stated in the filing | not stated | 36K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 135 | price not stated in the filing | not stated | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $4.24 | $174 | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 136 | price not stated in the filing | not stated | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 25 | $4.24 | $106 | 35K |
| 2026-07-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 81 | price not stated in the filing | not stated | 35K |
| 2026-07-08 | Mendel Scott | Director | Option exercise | 8K | price not stated in the filing | not stated | 24K |
| 2026-07-08 | LAI GOLDMAN MYLA | Director | Option exercise | 8K | price not stated in the filing | not stated | 15K |
| 2026-07-01 | Mendel Scott | Director | Grant | 3K | $4.34 | $15K | 17K |
| 2026-07-01 | DONNELLY WILLIAM P | Director | Grant | 5K | $4.34 | $24K | 160K |
| 2026-06-30 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 39 | $4.32 | $168 | 35K |
| 2026-06-30 | Miller Michael Francis | Chief Technology Officer | Option exercise | 130 | price not stated in the filing | not stated | 35K |
| 2026-06-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 41 | $3.10 | $127 | 34K |
| 2026-06-15 | Miller Michael Francis | Chief Technology Officer | Tax withholding | 25 | $3.10 | $78 | 34K |
| 2026-06-15 | Miller Michael Francis | Chief Technology Officer | Option exercise | 81 | price not stated in the filing | not stated | 34K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON8 holders report 5% or more of QTRX in their latest filing, all on Schedule 13G (passive). The largest reported stake is Ameriprise Financial, Inc. at 7.5% of the class (3,542,374 shares), filed 2026-05-15 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 5 | Portolan Capital Management, LLCinvestment adviser | 1.9M | 4.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 5 | George McCabeindividual | 1.9M | 4.0% | 2026-06-30 |
| 2026-08-06 | 13G | First Eagle Investment Management, LLCinvestment adviser | 2.8M | 5.8% | 2026-06-30 |
| 2026-08-06 | 13G | FIRST EAGLE SMALL CAP OPPORTUNITY FUNDinsurance company | 2.4M | 5.1% | 2026-06-30 |
| 2026-05-15 | 13G/Ano. 5 | Ameriprise Financial, Inc.parent holding company | 3.5M | 7.5% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 2 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-17 | 13G/Ano. 4 | TAM UK International Holdings Limitednon-US institution | 3.1M | 6.7% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Threadneedle Management Luxembourg S.A.non-US institution | 1.9M | 4.1% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Threadneedle Asset Management Limitednon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Threadneedle Holdings Limitednon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | TAM UK Holdings Limitednon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Threadneedle Asset Management Holdings Limitednon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | TC Financing Ltdnon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Threadneedle Investment Services Limitednon-US institution | 1.2M | 2.6% | 2025-12-31 |
| 2025-11-19 | 13G | Telegraph Hill Partners III, L.P.partnership | 2.5M | 5.4% | 2025-09-30 |
| 2025-11-19 | 13G | THP III Affiliates Fund, LLCpartnership | 2.5M | 5.4% | 2025-09-30 |
| 2025-11-19 | 13G | Telegraph Hill Partners III Investment Management, LLCpartnership | 2.5M | 5.4% | 2025-09-30 |
| 2025-11-19 | 13G | Telegraph Hill Partners Management Company, LLCpartnership | 2.5M | 5.4% | 2025-09-30 |
13F holders
Tracked managers holding QTRX at their latest 13F. JSON5 of the 30 tracked managers held QTRX at their latest 13F, $8.0M in total at quarter-end prices. AQR Capital Management is the largest at $5.8M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 1.3M | $5.8M | 0.00% | +1.3M |
| Citadel Advisors | 2026-06-30 | 230K | $992K | 0.00% | +169K |
| Point72 Asset Management | 2026-06-30 | 226K | $975K | 0.00% | +132K |
| Millennium Management | 2026-06-30 | 41K | $176K | 0.00% | -649K |
| D. E. Shaw & Co. | 2026-06-30 | 18K | $76K | 0.00% | new |
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. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Quanterix reported revenue of $32.9M, up 34.4% from the same quarter a year earlier, and net loss of $48.9M (-1.04 diluted EPS). In FY 2025 it generated -$77.2M of operating cash flow.
- Cash
- $44.2M
- Equity
- $237.2M
- Total assets
- $319.6M
- Shares outstanding
- 47,293,065
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $32.9M | -$48.9M | -148.7% | -1.04 |
| Q1 FY 2026 | 2026-03-31 | $36.4M | -$17.5M | -48.2% | -0.37 |
| Q4 FY 2025derived | 2025-12-31 | $43.9M | -$23.1M | -52.7% | n/a |
| Q3 FY 2025 | 2025-09-30 | $40.2M | -$33.5M | -83.3% | -0.73 |
| Q2 FY 2025 | 2025-06-30 | $24.5M | -$30.0M | -122.6% | -0.77 |
| Q1 FY 2025 | 2025-03-31 | $30.3M | -$20.5M | -67.6% | -0.53 |
| Q4 FY 2024derived | 2024-12-31 | $35.2M | -$11.6M | -33.1% | n/a |
| Q3 FY 2024 | 2024-09-30 | $35.8M | -$8.4M | -23.3% | -0.22 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $138.9M | -$107.2M | -$77.2M | $2.6M | n/a | n/a |
| FY 2024 | 2024-12-31 | $137.4M | -$38.5M | -$35.2M | $3.4M | n/a | n/a |
| FY 2023 | 2023-12-31 | $122.4M | -$28.4M | -$18.8M | $3.8M | n/a | n/a |
| FY 2022 | 2022-12-31 | $105.5M | -$99.6M | -$48.6M | $11.6M | n/a | n/a |
| FY 2021 | 2021-12-31 | $110.6M | -$55.5M | -$47.6M | $13.7M | n/a | n/a |
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 2026-08-03 from the cover page.
What this page is
Quanterix 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 Quanterix (QTRX), SEC CIK 1503274, listed on Nasdaq, classified by the SEC as laboratory analytical instruments. 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 2026-10-09.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.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 2026-08-10.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-02.JSON and CSV
- Company record
- EDGAR filing index for CIK 1503274Ticker, 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 laboratory analytical instruments
Other company pages
Datasets
Frequently Asked Questions
How much of QTRX is sold short?
What is QTRX's daily short volume?
Does QTRX have fails to deliver?
Are QTRX insiders buying or selling?
Who owns 5% or more of QTRX?
What did QTRX report last quarter?
Which tracked 13F managers own QTRX?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.