Frontier Group Short Interest Rises to 51.8%
Welcome to this week's installment of "The Short Interest Report" - The Fly's weekly recap of short interest trends among some of the most widely followed high-short-float stocks. Using the data from our partner, which utilizes the latest information from stock lenders to estimate short interest changes for thousands of publicly traded companies, this report will screen for some of biggest changes in short interest as a percentage of free float and days-to-cover ratios while also considering the short interest data on some of the more volatile and heavier-traded names of the week. Based on the availability of data from Ortex, the report tracks the trading period that covers prior Friday through Thursday of this week, excluding holidays. As a basis of comparison for stocks discussed below, the S&P 500 index was down 1.0%, the Nasdaq Composite was down 1.0%, the Russell 2000 index was up 0.2%, the Russell 2000 Growth ETFwas down 0.6%, and the Russell 2000 Value ETFwas flat in the five-day trading session range through March 19.SHORT INTEREST GAINERSOrtex-reported short interest on Frontier Group Holdingshad previously reached a multi-month high above 50% in the first week of December as the stock price had rallied. Short positioning had then retreated to track in a 35%-42% range over the second half of December and through January-February, though bears have been far more active over the past three weeks, coinciding with the start of the Iran campaign by U.S.-Israel forces. This week, short interest as a percentage of free float jumped from 44.4% to 51.8%, a 10-month high. Similarly, days-to-cover rose sharply from 7.2 to 8.3 despite the increase in trading volume. Shares of Frontier Group were down 6% in the five-day period ended Thursday, though the stock is now down 27% from the start of the Middle East tension as traders react to the double-whammy of higher oil price and heightened travel alertness impacting airline and cruise stocks.Ortex-reported short interest on WisdomTreehad receded from mid-February high levels around 26.5% toward 22% in the first two weeks of March, though this week, shorts as a percentage of free float nudged higher and back above 24% while days-to-cover on the stock rose from 7.8 to 8.6. The stock had been one of the best performing names among its small-cap peers in the asset management space and remains impressively higher double-digits year-to-date in spite of the headwinds encountered by private credit, though it was also down 8.5% in in the five-day period covered through Thursday and has now fallen 24% relative to its 2026 peak just two weeks ago.Ortex-reported short interest in Core Scientifichad tracked in a very narrow 25%-26% range from February 10 through March 10, though this week, traders have turned increasingly willing to underwrite a more bearish case for digital crypto mining names. Short interest as a percentage of free float climbed from 26.5% to 28.3% in the five-day period covered through Thursday even as the stock rose 1.5% against a decidedly negative broader market sentiment. Short positioning is now within two percentage points of its 2026 highs even though the stock is still up about 9% on the year.SHORT INTEREST DECLINERSThe oil shock related to the Middle East conflict has made energy the only market sector to generate gains this week, and this theme is also playing out across our short-interest screen, where every stock in the energy arena has seen its short positioning drastically reduced. Specifically, bearish exposure as a percentage of free float for Fluence Energyfell 10 percentage points to a two-month low of 19.5%, short interest on Northern Oil & Gasfell from 18.4% to a one-year low of 16.1%, while that of HighPeak Energyslipped from 28.4% to a one-month low of 25.3%. Shorts are heading for the exits as the path to an off-ramp from escalation around the Strait of Hormuz - sending oil prices up by about 50% in just three weeks - remains murky, and the performance of those stocks reflect the sharp supply-risk premium: Northern Oil has gained 3% and HighPeak soared by 20%, even though Fluence Energy slipped about 2% in the five-day period covered through Thursday.
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Government Shutdown Impact: The Transportation Security Administration (TSA) agents have been affected by a 38-day partial government shutdown, resulting in them not receiving paychecks.
Potential Resolution: Republican Senators have indicated they will propose a deal to Democrats that could potentially end the government shutdown and restore pay to TSA agents.
- New Cabin Design: United Airlines has unveiled a new cabin design that reduces standard coach seating while increasing premium seating options, which is expected to enhance overall profit margins, particularly given the strong demand in the premium market.
- Fare Discrepancy: For instance, a flight from Newark to San Francisco has a fare of $423 in standard coach, while the top-tier Polaris class costs $5,556, highlighting the profit potential of premium seating.
- New Aircraft Introduction: United plans to introduce the A321neo 'Coastliner' with 20 Polaris seats, set to debut this summer, further strengthening its competitive position in the premium market.
- Market Trend: Airlines are increasingly dedicating more space to premium seating, and United's strategy aligns with this industry trend, aiming to meet the growing demand for high-end travel and drive revenue growth.
- Premium Seat Expansion: United Airlines is introducing more premium seating options on its regional jets and a new subfleet of Airbus planes featuring lie-flat Polaris seats, aiming to attract high-end customers and enhance overall profitability through superior travel experiences.
- Significant Fare Disparity: For instance, a flight from Newark to San Francisco is priced at $423 in economy class while the top-tier Polaris class costs $5,556, illustrating the strong demand in the premium market that drives revenue growth for the airline.
- New Aircraft Introduction: United plans to roll out a subfleet of Airbus A321neo jets dubbed 'Coastliner' with 20 Polaris seats, expecting to have 40 of these aircraft by 2028, which enhances its competitiveness on transcontinental flights while improving customer comfort and satisfaction.
- Market Trend Response: In response to the growing demand for premium seating, United is adjusting its cabin configurations by reducing the number of standard economy seats to make way for more premium options, demonstrating the company's strategic focus on the high-end market and future revenue growth.
- Guidance Revision: Frontier Holdings has revised its Q1 loss guidance to between $0.32 and $0.44 per share, widening from the previous range of $0.26 to $0.44, reflecting improved demand trends in March alongside rising fuel costs.
- Rising Fuel Costs: Jet fuel prices are now expected to average $3 per gallon, up from a prior estimate of $2.50, leading to an incremental fuel expense increase of $45 million to $50 million for the airline in Q1, thereby intensifying operational cost pressures.
- Revenue Growth Potential: Despite projecting a wider loss, Frontier anticipates a mid-teens percentage increase in revenue per available seat mile (RASM), up from an earlier forecast of approximately 10%, indicating potential for enhanced revenue generation.
- Capacity Adjustment: Capacity is expected to decrease by 1% to 1.5%, consistent with prior guidance, reflecting the company's cautious approach to market fluctuations while aiming to optimize operational efficiency.
- Security Delays Impact: The partial government shutdown has caused massive slowdowns at TSA checkpoints in major airports, leading travelers to potentially opt for driving instead of flying, negatively affecting airline demand.
- Economic Impact Evident: Airlines experienced a 43-day shutdown in Q4, with reports indicating that this event has had a measurable impact on earnings, highlighting the increasing economic pressure on the aviation sector.
- Emotional Factors Affect Stock Prices: Experts note that market sentiment is also reflected in airline stock prices, and if the situation calms down, a rebound in share prices may occur; however, the current demand stagnation poses challenges for the industry's outlook.
- Demand Trend Uncertainty: With security delays and global entry restrictions, the future trends of airline demand have become increasingly uncertain, potentially leading consumers to be more cautious in their travel choices, further impacting airline performance.
- Rising Oil Price Risk: US airlines are under threat of soaring jet fuel costs due to escalating tensions in the Middle East, which could significantly impact their operational costs and profit margins.
- Travel Demand Fluctuations: Aviation expert Steve Trent highlights that rising oil prices may suppress travel demand, affecting airfare prices, prompting airlines to navigate market changes carefully to maintain profitability.
- Government Shutdown Impact: The partial government shutdown has led to severe delays at TSA checkpoints in major airports, potentially affecting passenger travel experiences and subsequently impacting airline traffic and revenue.
- Market Reaction Monitoring: As airlines face multiple pressures, market attention on their future performance is increasing, with investors needing to closely monitor oil price trends and their potential impact on the aviation sector.











