Spirit Aviation Holdings, Inc.
FLYYDelisted Sep 11, 2025- Industry
- Air Transportation, Scheduled
- SEC CIK
- 0001498710
Spirit Aviation Holdings, Inc. was delisted on Sep 11, 2025; its insiders filed their last Form 4 on Jul 23, 2025; 67 institutions reported holding it in 13F filings for Q2 2025, worth $125.0M in total; no superinvestor held 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
- 2.37M
- Shares, settlement Aug 29, 2025
- Change
- −90.5K
- −3.7% vs. Aug 15, 2025
- Days to cover
- 1.31
- Short interest ÷ average daily volume
- Average daily volume
- 1.81M
- Shares, as reported by FINRA
| Settlement date | Short interest | Change | Change % | Avg. daily volume | Days to cover |
|---|---|---|---|---|---|
| Aug 29, 2025 | 2.37M | −90.5K | −3.7% | 1.81M | 1.31 |
| Aug 15, 2025 | 2.46M | +112.8K | +4.8% | 912.2K | 2.70 |
| Jul 31, 2025 | 2.35M | +2.36K | +0.1% | 228.8K | 10.27 |
| Jul 15, 2025 | 2.35M | +342.5K | +17.1% | 201.3K | 11.66 |
| Jun 30, 2025 | 2.01M | +616.4K | +44.4% | 515.5K | 3.89 |
| Jun 13, 2025 | 1.39M | +214.4K | +18.3% | 247.0K | 5.62 |
| May 30, 2025 | 1.17M | −81.7K | −6.5% | 153.9K | 7.63 |
| May 15, 2025 | 1.26M | +549.5K | +77.8% | 240.2K | 5.23 |
| Apr 30, 2025 | 706.4K | +706.4K | +100.0% | 142.4K | 4.96 |
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.
| Settlement date | Shares | Price | Value |
|---|---|---|---|
| Aug 28, 2026 | 1,603 | $0.02 | $32.06 |
| Aug 25, 2026 | 200 | $0.02 | $4 |
| Aug 13, 2026 | 2,557 | $0.02 | $51.14 |
| Aug 12, 2026 | 11,352 | $0.02 | $227.04 |
| Aug 11, 2026 | 11,352 | $0.02 | $227.04 |
| Aug 6, 2026 | 3,329 | $0.02 | $66.58 |
| Jul 31, 2026 | 1,286 | $0.03 | $38.58 |
| Jul 14, 2026 | 2,863 | $0.02 | $57.26 |
| Jul 13, 2026 | 1,018 | $0.02 | $20.36 |
| Jul 10, 2026 | 4,893 | $0.02 | $97.86 |
| Jul 9, 2026 | 843 | $0.02 | $16.86 |
| Jul 6, 2026 | 1,468 | $0.01 | $14.68 |
| May 13, 2026 | 579 | $0.18 | $104.22 |
| May 12, 2026 | 445 | $0.18 | $80.1 |
| May 11, 2026 | 1,488 | $0.15 | $223.2 |
| May 8, 2026 | 1,778 | $0.16 | $284.48 |
| May 7, 2026 | 15,184 | $0.16 | $2.43K |
| May 6, 2026 | 18,167 | $0.21 | $3.82K |
| May 5, 2026 | 28,306 | $0.20 | $5.66K |
| May 4, 2026 | 26,911 | $1.05 | $28.3K |
| May 1, 2026 | 2,210 | $1.40 | $3.09K |
| Apr 29, 2026 | 38 | $1.72 | $65.36 |
| Apr 27, 2026 | 550,000 | $1.56 | $858.0K |
| Apr 24, 2026 | 550,310 | $1.11 | $610.8K |
| Apr 23, 2026 | 400,531 | $1.50 | $600.8K |
| Apr 15, 2026 | 880 | $0.27 | $237.6 |
| Apr 10, 2026 | 1,188 | $0.26 | $308.88 |
| Apr 9, 2026 | 7,118 | $0.27 | $1.92K |
| Apr 8, 2026 | 1,543 | $0.27 | $416.61 |
| Apr 6, 2026 | 1,767 | $0.27 | $477.09 |
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.
| Trade date | Short volume | Short exempt | Off-exchange volume | Short volume ratio |
|---|---|---|---|---|
| Aug 29, 2025 | 263,782 | 42,609 | 547,694 | 48.2% |
| Aug 28, 2025 | 421,795 | 3,911 | 812,263 | 51.9% |
| Aug 27, 2025 | 129,414 | 0 | 408,168 | 31.7% |
| Aug 26, 2025 | 371,821 | 77,893 | 651,617 | 57.1% |
| Aug 25, 2025 | 303,676 | 4,024 | 666,972 | 45.5% |
| Aug 22, 2025 | 530,213 | 12,497 | 1,096,511 | 48.4% |
| Aug 21, 2025 | 171,421 | 11,677 | 347,277 | 49.4% |
| Aug 20, 2025 | 238,570 | 24,790 | 419,023 | 56.9% |
| Aug 19, 2025 | 414,759 | 26,693 | 679,353 | 61.1% |
| Aug 18, 2025 | 103,282 | 4,373 | 196,159 | 52.7% |
| Aug 15, 2025 | 399,607 | 6,330 | 569,442 | 70.2% |
| Aug 14, 2025 | 260,078 | 7 | 550,694 | 47.2% |
| Aug 13, 2025 | 368,658 | 27,644 | 871,655 | 42.3% |
| Aug 12, 2025 | 1,251,357 | 132,221 | 2,388,713 | 52.4% |
| Aug 11, 2025 | 170,941 | 394 | 234,104 | 73.0% |
| Aug 8, 2025 | 21,718 | 0 | 55,065 | 39.4% |
| Aug 7, 2025 | 56,520 | 11,229 | 107,174 | 52.7% |
| Aug 6, 2025 | 35,725 | 5,020 | 60,610 | 58.9% |
| Aug 5, 2025 | 60,857 | 23,023 | 102,172 | 59.6% |
| Aug 4, 2025 | 49,011 | 10,342 | 73,525 | 66.7% |
| Aug 1, 2025 | 82,265 | 0 | 132,361 | 62.2% |
| Jul 31, 2025 | 26,967 | 12 | 51,812 | 52.0% |
| Jul 30, 2025 | 52,213 | 11 | 180,351 | 29.0% |
| Jul 29, 2025 | 21,857 | 54 | 45,834 | 47.7% |
| Jul 28, 2025 | 25,949 | 35 | 49,562 | 52.4% |
| Jul 25, 2025 | 70,815 | 0 | 118,582 | 59.7% |
| Jul 24, 2025 | 44,102 | 0 | 63,374 | 69.6% |
| Jul 23, 2025 | 23,649 | 0 | 46,397 | 51.0% |
| Jul 22, 2025 | 21,057 | 0 | 53,826 | 39.1% |
| Jul 21, 2025 | 62,994 | 34 | 128,459 | 49.0% |
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.
| Week of | Tier | ATS shares | ATS trades | Other OTC shares | Other OTC trades | ATS share |
|---|---|---|---|---|---|---|
| Sep 1, 2025 | OTCE | 1,230,069 | 453 | 6,397,808 | 3,004 | 16.1% |
| Aug 25, 2025 | T2 | 582,258 | 5,223 | 3,949,939 | 6,547 | 12.8% |
| Aug 18, 2025 | T2 | 437,848 | 4,194 | 4,369,814 | 11,017 | 9.1% |
| Aug 11, 2025 | T2 | 981,302 | 5,902 | 4,045,507 | 9,921 | 19.5% |
| Aug 4, 2025 | T2 | 167,131 | 2,235 | 237,953 | 972 | 41.3% |
| Jul 28, 2025 | T2 | 254,981 | 3,790 | 210,902 | 1,329 | 54.7% |
| Jul 21, 2025 | T2 | 220,829 | 3,278 | 201,164 | 2,301 | 52.3% |
| Jul 14, 2025 | T2 | 264,627 | 3,415 | 419,236 | 1,930 | 38.7% |
| Jul 7, 2025 | T2 | 188,373 | 2,897 | 163,206 | 880 | 53.6% |
| Jun 30, 2025 | T2 | 158,556 | 3,166 | 246,286 | 1,121 | 39.2% |
| Jun 23, 2025 | T2 | 338,601 | 6,010 | 873,087 | 1,445 | 27.9% |
| Jun 16, 2025 | T2 | 286,109 | 5,048 | 379,175 | 1,603 | 43.0% |