Frontier Group Holdings (ULCC)

As of 30 September 2026, short interest in ULCC is 23,527,155 shares, down 1,213,239 shares over the last month. Over the last 48 readings it ranged from 12,847,172 shares (31 January 2025) to 28,921,414 shares (28 November 2025). At the reported average volume of 2.5M shares a day that is 9.4 days to cover.

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As of 9 October 2026, the short share of ULCC volume is 57.4%, up 11.0 points over the last five sessions. Over the last 30 readings it ranged from 28.5% (4 September 2026) to 57.8% (8 October 2026). The latest reading sits at the top of that range. The latest reading is 12.0 points above the 30-session average of 45.4%, on 870K shares reported.

As of 4 September 2026, the fails-to-deliver balance in ULCC is 1,149 shares, down 2,109 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (1 July 2026) to 246,903 shares (13 July 2026). The latest reading sits at the bottom of that range.

Insiders at ULCC reported 9 open-market sells worth $2.8M in the last 90 days and no open-market buys. Latest filing: Mathew Jeffrey (SVP, Chief Information Officer) on 2026-09-22.

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.

26 Form 144 notices on file for ULCC worth $98.4M at the prices reported; 9 in the last 90 days worth $2.7M. Latest: Schuller Steve filed on 2026-09-04 to sell 7,500 shares ($43K) from 2026-09-04.

1 holder reports 5% or more of ULCC in its latest filing, on Schedule 13G (passive). The holder is Group Holdings - Frontier LLC at 9.9% of the class (22,706,526 shares), filed 2026-07-13 for an event on 2026-07-09.

7 of the 30 tracked managers held ULCC at their latest 13F, $109.3M in total at quarter-end prices. Two Sigma Investments is the largest at $37.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 0 cut.

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.

In Q1 FY 2026 (quarter ended 2026-03-31) Frontier Group Holdings reported revenue of $992.0M, up 8.8% from the same quarter a year earlier, and net loss of $272.0M (-1.18 diluted EPS). In FY 2025 it generated -$525.0M of operating cash flow. As of 2026-03-31, cash was $772.0M against $588.0M of debt.

Quarterly, last 8 quarters

Fiscal years, with buybacks and dividends

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 2026-03-31; shares outstanding as of 2026-05-01 from the cover page.