Hydrofarm Holdings Group (HYFM)
Hydrofarm Holdings Group on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as wholesale-miscellaneous nondurable goods.
437K
Short interest
settlement 2026-10-15
4.8
Days to cover
-15.5 days vs prior
34.0%
Short share of volume
2026-11-02
1,651
Fails to deliver
settlement 2026-10-09
Wed 11 Nov
Next earnings
estimated date
$20K
Insider flow, 90 days
1 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in HYFM is 436,898 shares, down 998 shares over the last month. Over the last 48 readings it ranged from 29,136 shares (31 October 2025) to 1,195,412 shares (31 October 2024). At the reported average volume of 91K shares a day that is 4.8 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/hyfm" 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 |
|---|---|---|---|---|
| 2026-10-15 | 436,898 | -0.2% | 91,041 | 4.80 |
| 2026-09-30 | 437,940 | +0.0% | 21,603 | 20.27 |
| 2026-09-15 | 437,896 | -10.1% | 126,083 | 3.47 |
| 2026-08-31 | 486,825 | +81.5% | 156,021 | 3.12 |
| 2026-08-14 | 268,168 | +276.6% | 15,685,994 | 1.00 |
| 2026-07-31 | 71,218 | +2.6% | 46,815 | 1.52 |
| 2026-07-15 | 69,421 | -15.2% | 27,916 | 2.49 |
| 2026-06-30 | 81,901 | -10.3% | 57,906 | 1.41 |
| 2026-06-15 | 91,322 | +49.8% | 92,120 | 1.00 |
| 2026-05-29 | 60,946 | +39.7% | 21,618 | 2.82 |
| 2026-05-15 | 43,640 | -10.3% | 25,644 | 1.70 |
| 2026-04-30 | 48,642 | +15.0% | 41,579 | 1.17 |
| 2026-04-15 | 42,297 | +33.6% | 23,360 | 1.81 |
| 2026-03-31 | 31,667 | -41.5% | 55,908 | 1.00 |
| 2026-03-13 | 54,114 | +74.7% | 68,516 | 1.00 |
| 2026-02-27 | 30,968 | +1.9% | 12,305 | 2.52 |
| 2026-02-13 | 30,399 | -0.4% | 28,518 | 1.07 |
| 2026-01-30 | 30,510 | -30.7% | 35,540 | 1.00 |
| 2026-01-15 | 44,027 | +7.0% | 56,977 | 1.00 |
| 2025-12-31 | 41,145 | -47.9% | 60,415 | 1.00 |
| 2025-12-15 | 79,002 | +152.4% | 136,542 | 1.00 |
| 2025-11-28 | 31,302 | +6.2% | 13,575 | 2.31 |
| 2025-11-14 | 29,480 | +1.2% | 20,988 | 1.40 |
| 2025-10-31 | 29,136 | -19.8% | 25,401 | 1.15 |
| 2025-10-15 | 36,310 | -12.2% | 34,609 | 1.05 |
| 2025-09-30 | 41,338 | -24.2% | 30,297 | 1.36 |
| 2025-09-15 | 54,542 | -49.0% | 39,612 | 1.38 |
| 2025-08-29 | 106,904 | -5.9% | 5,171 | 20.67 |
| 2025-08-15 | 113,653 | -2.3% | 8,874 | 12.81 |
| 2025-07-31 | 116,335 | -6.4% | 11,953 | 9.73 |
| 2025-07-15 | 124,329 | -16.8% | 8,724 | 14.25 |
| 2025-06-30 | 149,418 | -6.7% | 6,537 | 22.86 |
| 2025-06-13 | 160,177 | -12.1% | 14,423 | 11.11 |
| 2025-05-30 | 182,134 | +1.5% | 15,643 | 11.64 |
| 2025-05-15 | 179,370 | -8.8% | 49,123 | 3.65 |
| 2025-04-30 | 196,700 | -31.1% | 33,014 | 5.96 |
| 2025-04-15 | 285,559 | +167.4% | 1,556,944 | 1.00 |
| 2025-03-31 | 106,774 | +9.6% | 26,887 | 3.97 |
| 2025-03-14 | 97,453 | +4.0% | 38,017 | 2.56 |
| 2025-02-28 | 93,741 | -33.9% | 24,243 | 3.87 |
| 2025-02-14 | 141,779 | -86.5% | 26,906 | 5.27 |
| 2025-01-31 | 1,054,184 | +0.2% | 55,050 | 19.15 |
| 2025-01-15 | 1,052,524 | +5.4% | 106,479 | 9.88 |
| 2024-12-31 | 998,433 | -4.9% | 151,652 | 6.58 |
| 2024-12-13 | 1,049,413 | -6.5% | 125,895 | 8.34 |
| 2024-11-29 | 1,122,165 | -4.8% | 242,231 | 4.63 |
| 2024-11-15 | 1,178,506 | -1.4% | 142,677 | 8.26 |
| 2024-10-31 | 1,195,412 | +1.3% | 81,815 | 14.61 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of HYFM volume is 34.0%, down 3.9 points over the last five sessions. Over the last 30 readings it ranged from 10.8% (23 September 2026) to 71.2% (23 October 2026). The latest reading is 6.6 points below the 30-session average of 40.6%, on 20K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 7K | 20K | 34.0% | 341 |
| 2026-10-30 | 18K | 41K | 43.2% | 1,105 |
| 2026-10-29 | 27K | 56K | 48.5% | 0 |
| 2026-10-28 | 24K | 51K | 48.0% | 10 |
| 2026-10-27 | 51K | 204K | 24.8% | 9,406 |
| 2026-10-26 | 8K | 22K | 37.9% | 0 |
| 2026-10-23 | 46K | 65K | 71.2% | 0 |
| 2026-10-22 | 3K | 8K | 34.0% | 0 |
| 2026-10-21 | 18K | 33K | 53.7% | 500 |
| 2026-10-20 | 12K | 45K | 27.1% | 3 |
| 2026-10-19 | 62K | 103K | 60.8% | 0 |
| 2026-10-16 | 56K | 113K | 49.3% | 0 |
| 2026-10-15 | 60K | 93K | 64.1% | 0 |
| 2026-10-14 | 24K | 43K | 54.5% | 0 |
| 2026-10-13 | 42K | 73K | 58.1% | 185 |
| 2026-10-12 | 50K | 97K | 51.3% | 5,457 |
| 2026-10-09 | 78K | 117K | 66.0% | 4,297 |
| 2026-10-08 | 27K | 56K | 48.4% | 0 |
| 2026-10-07 | 21K | 43K | 49.5% | 0 |
| 2026-10-06 | 8K | 31K | 25.6% | 0 |
| 2026-10-05 | 2K | 11K | 14.1% | 0 |
| 2026-10-02 | 8K | 36K | 21.9% | 0 |
| 2026-10-01 | 1K | 6K | 23.6% | 0 |
| 2026-09-30 | 3K | 13K | 25.7% | 0 |
| 2026-09-29 | 3K | 10K | 25.4% | 0 |
| 2026-09-28 | 1K | 4K | 28.2% | 0 |
| 2026-09-25 | 1K | 4K | 35.0% | 0 |
| 2026-09-24 | 1K | 3K | 33.3% | 12 |
| 2026-09-23 | 3K | 27K | 10.8% | 0 |
| 2026-09-22 | 8K | 16K | 50.0% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in HYFM is 1,651 shares, up 1,220 shares over the last settlement date. Over the last 30 readings it ranged from 51 shares (16 September 2026) to 494,422 shares (4 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 1,651 | $0.96 | $2K |
| 2026-10-08 | 431 | $0.98 | $422 |
| 2026-10-07 | 375 | $0.99 | $371 |
| 2026-10-01 | 357 | $0.96 | $343 |
| 2026-09-30 | 639 | $0.94 | $601 |
| 2026-09-25 | 2,086 | $0.96 | $2K |
| 2026-09-24 | 5,242 | $0.97 | $5K |
| 2026-09-23 | 5,017 | $1.01 | $5K |
| 2026-09-22 | 2,533 | $0.98 | $2K |
| 2026-09-21 | 1,757 | $0.95 | $2K |
| 2026-09-18 | 692 | $0.95 | $657 |
| 2026-09-16 | 51 | $0.94 | $48 |
| 2026-09-15 | 3,120 | $0.95 | $3K |
| 2026-09-10 | 11,047 | $0.98 | $11K |
| 2026-09-09 | 850 | $0.93 | $791 |
| 2026-09-08 | 16,435 | $0.95 | $16K |
| 2026-09-03 | 435 | $1.01 | $439 |
| 2026-08-27 | 6,502 | $0.88 | $6K |
| 2026-08-26 | 9,655 | $0.94 | $9K |
| 2026-08-25 | 1,822 | $0.91 | $2K |
| 2026-08-24 | 1,822 | $1.02 | $2K |
| 2026-08-14 | 121 | $1.80 | $218 |
| 2026-08-13 | 300 | $1.68 | $504 |
| 2026-08-12 | 1,306 | $1.67 | $2K |
| 2026-08-11 | 300 | $1.95 | $585 |
| 2026-08-10 | 9,660 | $1.60 | $15K |
| 2026-08-07 | 95,888 | $1.84 | $176K |
| 2026-08-06 | 143,231 | $1.62 | $232K |
| 2026-08-05 | 290,639 | $1.92 | $558K |
| 2026-08-04 | 494,422 | $2.15 | $1.1M |
Insider trades
SEC Form 4, newest first. JSONInsiders at HYFM reported 1 open-market buy worth $20K in the last 90 days and no open-market sells. Latest filing: Yetter Richard Christopher (Director) on 2026-10-27.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-27 | Yetter Richard Christopher | Director | Grant | 138K | $0.91 | $125K | 443K |
| 2026-10-27 | Toler William Douglas | Chief Executive Officer | Grant | 55K | $0.91 | $50K | 277K |
| 2026-10-27 | PARKER MARK S | President | Buy | 22K | $0.91 | $20K | 41K |
| 2026-08-08 | PARKER MARK S | President | Tax withholding | 740 | $1.60 | $1K | 19K |
| 2026-08-08 | Ackerman Erica | CAO and Corporate Controller | Tax withholding | 138 | $1.60 | $221 | 7K |
| 2026-06-23 | Denis Melisa | Director | Grant | 30K | $0.00 | $0 | 88K |
| 2026-06-23 | Persofsky Renah | Director | Grant | 30K | $0.00 | $0 | 91K |
| 2026-06-23 | Yetter Richard Christopher | Director | Grant | 30K | $0.00 | $0 | 50K |
| 2026-06-23 | Chung Patrick | Director | Grant | 30K | $0.00 | $0 | 91K |
| 2026-01-06 | PARKER MARK S | President | Tax withholding | 2K | $1.51 | $3K | 19K |
| 2026-01-06 | O'Brien Kevin Patrick | Chief Financial Officer | Sell | 1K | $1.51 | $2K | 13K |
| 2026-01-06 | Toler William Douglas | Chief Executive Officer | Tax withholding | 5K | $1.51 | $8K | 222K |
| 2026-01-06 | Ackerman Erica | CAO and Corporate Controller | Tax withholding | 687 | $1.51 | $1K | 8K |
| 2025-12-05 | Denis Melisa | Director | Sell | 120 | $1.92 | $230 | 58K |
| 2025-12-04 | Denis Melisa | Director | Sell | 3K | $1.88 | $5K | 59K |
| 2025-10-01 | Yetter Richard Christopher | Director | Grant | 20K | $0.00 | $0 | 20K |
| 2025-08-18 | Toler William Douglas | Director, Executive Chairman of Board | Tax withholding | 445 | $4.51 | $2K | 227K |
| 2025-08-18 | O'Brien Kevin Patrick | Chief Financial Officer | Tax withholding | 48 | $4.51 | $216 | 14K |
| 2025-08-18 | PARKER MARK S | President | Tax withholding | 370 | $4.51 | $2K | 21K |
| 2025-08-18 | Lindeman Bruce John | Chief Executive Officer | Tax withholding | 496 | $4.51 | $2K | 57K |
| 2025-08-11 | PARKER MARK S | President | Tax withholding | 771 | $4.49 | $3K | 21K |
| 2025-08-11 | Ackerman Erica | CAO and Corporate Controller | Tax withholding | 52 | $4.49 | $233 | 8K |
| 2025-06-09 | Denis Melisa | Director | Grant | 30K | $0.00 | $0 | 61K |
| 2025-06-09 | Chung Patrick | Director | Grant | 30K | $0.00 | $0 | 61K |
| 2025-06-09 | Persofsky Renah | Director | Grant | 30K | $0.00 | $0 | 61K |
| 2025-06-09 | Peters Susan | Director | Grant | 30K | $0.00 | $0 | 61K |
| 2025-04-08 | Toler William Douglas | Director,Other | Tax withholding | 3K | $1.78 | $5K | 227K |
| 2025-04-08 | PARKER MARK S | President | Tax withholding | 1K | $1.78 | $2K | 22K |
| 2025-04-08 | O'Brien Kevin Patrick | Chief Financial Officer | Tax withholding | 863 | $1.78 | $2K | 14K |
| 2025-04-08 | Lindeman Bruce John | Chief Executive Officer | Tax withholding | 2K | $1.78 | $3K | 57K |
| 2025-04-08 | Ackerman Erica | CAO and Corporate Controller | Tax withholding | 473 | $1.78 | $842 | 8K |
| 2025-03-24 | Toler William Douglas | Director,Other | Tax withholding | 198 | $2.85 | $564 | 230K |
| 2025-03-24 | O'Brien Kevin Patrick | Chief Financial Officer | Tax withholding | 292 | $2.85 | $832 | 15K |
| 2025-02-28 | PARKER MARK S | President | Grant | 3K | $0.00 | $0 | 24K |
| 2025-02-28 | O'Brien Kevin Patrick | Chief Financial Officer | Grant | 3K | $0.00 | $0 | 16K |
| 2025-02-28 | Lindeman Bruce John | Chief Executive Officer | Grant | 4K | $0.00 | $0 | 59K |
| 2025-02-28 | Ackerman Erica | CAO and Corporate Controller | Grant | 1K | $0.00 | $0 | 9K |
| 2025-02-28 | Toler William Douglas | Director,Other | Grant | 10K | $0.00 | $0 | 230K |
| 2025-02-26 | Lindeman Bruce John | Chief Executive Officer | Tax withholding | 160 | $5.39 | $862 | 55K |
| 2025-02-26 | PARKER MARK S | President | Tax withholding | 84 | $5.39 | $453 | 21K |
| 2025-01-01 | Toler William Douglas | Director,Other | Grant | 350K | $0.00 | $0 | 2.2M |
| 2025-01-01 | Lindeman Bruce John | Chief Executive Officer | Grant | 250K | $0.00 | $0 | 551K |
| 2025-01-01 | O'Brien Kevin Patrick | Chief Financial Officer | Grant | 100K | $0.00 | $0 | 131K |
| 2025-01-01 | PARKER MARK S | President | Grant | 100K | $0.00 | $0 | 209K |
| 2025-01-01 | Ackerman Erica | CAO and Corporate Controller | Grant | 50K | $0.00 | $0 | 76K |
| 2024-11-01 | PARKER MARK S | Executive Vice President | Tax withholding | 138 | $0.68 | $94 | 109K |
| 2024-11-01 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 21K | $0.68 | $14K | 1.9M |
| 2024-10-01 | PARKER MARK S | Executive Vice President | Tax withholding | 134 | $0.69 | $92 | 109K |
| 2024-09-03 | PARKER MARK S | Executive Vice President | Tax withholding | 134 | $0.44 | $59 | 109K |
| 2024-08-28 | Toler William Douglas | CEO and Chairman of the Board | Buy | 100K | $0.50 | $50K | 1.9M |
| 2024-08-19 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 4K | $0.55 | $2K | 1.8M |
| 2024-08-19 | Lindeman Bruce John | CFO | Tax withholding | 5K | $0.55 | $3K | 301K |
| 2024-08-19 | PARKER MARK S | Executive Vice President | Tax withholding | 4K | $0.55 | $2K | 109K |
| 2024-08-19 | O'Brien Kevin Patrick | Chief Accounting Officer | Tax withholding | 479 | $0.55 | $263 | 31K |
| 2024-08-08 | PARKER MARK S | Executive Vice President | Tax withholding | 7K | $0.54 | $4K | 113K |
| 2024-07-31 | PARKER MARK S | Executive Vice President | Tax withholding | 144 | $0.64 | $92 | 120K |
| 2024-06-30 | PARKER MARK S | Executive Vice President | Tax withholding | 132 | $0.69 | $91 | 120K |
| 2024-06-06 | Peters Susan | Director | Grant | 160K | $0.00 | $0 | 313K |
| 2024-06-06 | Persofsky Renah | Director | Grant | 160K | $0.00 | $0 | 315K |
| 2024-06-06 | Denis Melisa | Director | Grant | 160K | $0.00 | $0 | 314K |
| 2024-06-06 | Chung Patrick | Director | Grant | 160K | $0.00 | $0 | 311K |
| 2024-06-06 | MOSS RICHARD D | Director | Grant | 160K | $0.00 | $0 | 315K |
| 2024-05-31 | PARKER MARK S | Executive Vice President | Tax withholding | 151 | $0.78 | $118 | 120K |
| 2024-05-01 | PARKER MARK S | Executive Vice President | Tax withholding | 151 | $0.97 | $146 | 120K |
| 2024-04-03 | PARKER MARK S | Executive Vice President | Tax withholding | 151 | $1.01 | $153 | 120K |
| 2024-03-25 | O'Brien Kevin Patrick | Chief Accounting Officer | Tax withholding | 4K | $0.93 | $4K | 31K |
| 2024-03-25 | PARKER MARK S | Executive Vice President | Tax withholding | 6K | $0.93 | $5K | 121K |
| 2024-03-25 | PARKER MARK S | Executive Vice President | Tax withholding | 3K | $0.93 | $3K | 126K |
| 2024-03-25 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 7K | $0.93 | $7K | 1.8M |
| 2024-03-25 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 11K | $0.93 | $10K | 1.8M |
| 2024-03-25 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 2K | $0.93 | $2K | 1.8M |
| 2024-03-25 | Lindeman Bruce John | CFO | Tax withholding | 8K | $0.93 | $8K | 306K |
| 2024-03-25 | Lindeman Bruce John | CFO | Tax withholding | 6K | $0.93 | $6K | 314K |
| 2024-03-22 | O'Brien Kevin Patrick | Chief Accounting Officer | Tax withholding | 3K | $0.83 | $2K | 35K |
| 2024-03-18 | Lindeman Bruce John | CFO | Tax withholding | 4K | $0.79 | $3K | 320K |
| 2024-03-01 | PARKER MARK S | Executive Vice President | Tax withholding | 151 | $0.90 | $136 | 130K |
| 2024-02-26 | PARKER MARK S | Executive Vice President | Tax withholding | 814 | $0.89 | $724 | 130K |
| 2024-02-26 | Lindeman Bruce John | CFO | Tax withholding | 2K | $0.89 | $1K | 324K |
| 2024-02-19 | Lindeman Bruce John | CFO | Tax withholding | 4K | $0.90 | $4K | 325K |
| 2024-02-15 | Toler William Douglas | CEO and Chairman of the Board | Grant | 44K | $0.00 | $0 | 1.8M |
| 2024-02-15 | O'Brien Kevin Patrick | Chief Accounting Officer | Grant | 11K | $0.00 | $0 | 38K |
| 2024-02-15 | Lindeman Bruce John | CFO | Grant | 17K | $0.00 | $0 | 329K |
| 2024-02-15 | PARKER MARK S | Executive Vice President | Grant | 12K | $0.00 | $0 | 131K |
| 2024-02-01 | PARKER MARK S | Executive Vice President | Tax withholding | 151 | $0.99 | $149 | 119K |
| 2024-01-17 | Lindeman Bruce John | CFO | Tax withholding | 4K | $0.96 | $4K | 312K |
| 2023-12-29 | PARKER MARK S | Executive Vice President | Tax withholding | 135 | $0.92 | $124 | 119K |
| 2023-12-28 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 6K | $0.83 | $5K | 1.8M |
| 2023-12-16 | Lindeman Bruce John | CFO | Tax withholding | 4K | $0.88 | $3K | 316K |
| 2023-12-01 | PARKER MARK S | Executive Vice President | Tax withholding | 135 | $0.85 | $115 | 119K |
| 2023-11-17 | Lindeman Bruce John | CFO | Tax withholding | 4K | $0.87 | $3K | 320K |
| 2023-11-02 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 21K | $1.00 | $21K | 1.8M |
| 2023-11-02 | PARKER MARK S | Executive Vice President | Tax withholding | 135 | $1.00 | $135 | 119K |
| 2023-10-17 | Lindeman Bruce John | CFO | Tax withholding | 4K | $1.14 | $4K | 323K |
| 2023-10-02 | PARKER MARK S | Executive Vice President | Tax withholding | 135 | $1.22 | $165 | 119K |
| 2023-09-20 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 6K | $1.37 | $9K | 1.8M |
| 2023-09-18 | Lindeman Bruce John | CFO | Tax withholding | 4K | $1.60 | $6K | 327K |
| 2023-09-01 | PARKER MARK S | Executive Vice President | Tax withholding | 135 | $1.25 | $169 | 119K |
| 2023-08-18 | Lindeman Bruce John | CFO | Tax withholding | 4K | $1.03 | $4K | 335K |
| 2023-08-18 | Lindeman Bruce John | CFO | Tax withholding | 5K | $1.08 | $5K | 330K |
| 2023-08-18 | Toler William Douglas | CEO and Chairman of the Board | Tax withholding | 4K | $1.08 | $4K | 1.8M |
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. JSON4 holders report 5% or more of HYFM in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Dumont Global LP at 6.5% of the class (305,000 shares), filed 2025-10-14 for an event on 2025-10-01.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2025-10-14 | 13D | Dumont Global LPinvestment adviser | 305K | 6.5% | 2025-10-01 |
| 2025-10-14 | 13D | Dumont Fund Partners LLCother entity | 305K | 6.5% | 2025-10-01 |
| 2025-10-14 | 13D | Dumont Master Fund LPother entity | 305K | 6.5% | 2025-10-01 |
| 2025-10-14 | 13D | Christopher Richard Yetterindividual | 305K | 6.5% | 2025-10-01 |
13F holders
Tracked managers holding HYFM at their latest 13F. JSON2 of the 30 tracked managers held HYFM at their latest 13F, $80K in total at quarter-end prices. Renaissance Technologies is the largest at $60K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 70K | $60K | 0.00% | -2K |
| Citadel Advisors | 2026-06-30 | 24K | $20K | 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.
What this page is
Hydrofarm Holdings Group 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 Hydrofarm Holdings Group (HYFM), SEC CIK 1695295, listed on Nasdaq, classified by the SEC as wholesale-miscellaneous nondurable goods. 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 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.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 2025-10-14.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
- 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 2026-08-14.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 2026-10-27.JSON and CSV
- Company record
- EDGAR filing index for CIK 1695295Ticker, 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.
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Datasets
Frequently Asked Questions
How much of HYFM is sold short?
436,898 shares were held short at the 2026-10-15 settlement, 4.8 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 HYFM's daily short volume?
On 2026-11-02, 6,668 of the 19,614 HYFM shares reported to FINRA were sold short, 34.0% of the day's reported volume. Short volume is a flow for one day, not a position.
Does HYFM have fails to deliver?
The SEC's latest file shows 1,651 HYFM shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are HYFM insiders buying or selling?
Insiders at HYFM reported 1 open-market buy worth $20K in the last 90 days and no open-market sells. Latest filing: Yetter Richard Christopher (Director) on 2026-10-27.
Who owns 5% or more of HYFM?
4 holders report 5% or more of HYFM in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Dumont Global LP at 6.5% of the class (305,000 shares), filed 2025-10-14 for an event on 2025-10-01.
Which tracked 13F managers own HYFM?
2 of the 30 tracked 13F managers held HYFM shares at their latest filing, $80K in all. The largest: Renaissance Technologies (70K shares, $60K), Ken Griffin's Citadel Advisors (24K shares, $20K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.