Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionPar Capital Management Inc
Latest Disclosed Ownership5,219,192 shares
Latest Disclosed Value $ 196,085,043
Par Capital Management Inc ownership in LUV / Southwest Airlines Co.

On May 15, 2026 - Par Capital Management Inc filed a 13F-HR form disclosing ownership of 5,219,192 shares of Southwest Airlines Co. (MX:LUV) valued at $196,085,043 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,950,192 shares of Southwest Airlines Co.. This represents a change in shares of 5.43% during the quarter.

Par Capital Management Inc has a history of taking positions in derivatives of the underlying security (LUV) in the form of stock options.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:LUV / Southwest Airlines Co. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SOUTHWEST AIRLS COM 844741108 5,219,192 269,000 5.43 196,085 -4.16 5.6810
2026-02-17 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 4,950,192 0 0.00 204,591 29.52 5.4078
2025-11-14 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 4,950,192 -967,300 -16.35 157,961 -17.71 4.6250
2025-08-14 2025-06-30 13F SOUTHWEST AIRLS COM 844741108 5,917,492 1,000 0.02 191,963 -3.38 6.2512
2025-05-15 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 5,916,492 4,204,300 245.55 198,676 245.14 6.6438
2025-02-14 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 1,712,192 3,000 0.18 57,564 13.66 1.6984
2024-11-14 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 1,709,192 166,574 10.80 50,643 14.75 1.4363
2024-08-14 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 1,542,618 -31,482 -2.00 44,134 -3.95 1.3897
2024-05-15 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 1,574,100 89,100 6.00 45,948 7.14 1.4290
2024-02-14 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 1,485,000 -15,000 -1.00 42,887 5.62 1.4088
2023-11-14 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 1,500,000 -500,000 -25.00 40,605 -43.93 1.5187
2023-08-14 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 2,000,000 -566,594 -22.08 72,420 -13.29 2.5216
2023-05-15 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 2,566,594 566,594 28.33 83,517 24.02 3.0739
2023-02-14 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 2,000,000 0 0.00 67,340 9.18 2.4223
2022-11-14 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 2,000,000 -1,454,404 -42.10 61,680 -50.57 2.2880
2022-08-15 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 3,454,404 0 0.00 124,773 -21.14 4.1841
2022-05-16 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 3,454,404 1,454,404 72.72 158,212 84.65 3.7809
2022-02-14 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 2,000,000 0 0.00 85,680 -16.70 2.3134
2021-11-15 2021-09-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 2,000,000 -118,000 -5.57 102,860 -8.52 2.4677
2021-11-15 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 2,000,000 -118,000 102,860 2.4677
2021-08-16 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 2,118,000 -382,000 -15.28 112,445 -26.34 2.7538
2021-05-17 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 2,500,000 0 0.00 152,650 31.00 3.5384
2021-02-16 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 2,500,000 -63,800 -2.49 116,525 21.20 3.3987
2020-11-16 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 2,563,800 15,800 0.62 96,143 10.39 3.6456
2020-08-14 2020-06-30 13F SOUTHWEST AIRLS COM 844741108 2,548,000 2,517,000 8,119.35 87,091 7,788.68 3.3428
2020-05-15 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 31,000 31,000 1,104 0.0469
2019-05-15 2019-03-31 13F SOUTHWEST AIRLS COM 844741108 0 -4,867,800 -100.00 0 -100.00
2019-02-14 2018-12-31 13F SOUTHWEST AIRLS COM 844741108 4,867,800 0 0.00 226,255 -25.57 3.7833
2018-11-14 2018-09-30 13F SOUTHWEST AIRLS COM 844741108 4,867,800 0 0.00 303,994 22.74 3.4892
2018-08-14 2018-06-30 13F SOUTHWEST AIRLS COM 844741108 4,867,800 -75,000 -1.52 247,674 -12.52 2.7862
2018-05-15 2018-03-31 13F SOUTHWEST AIRLS COM 844741108 4,942,800 100,000 2.06 283,124 -10.68 3.1087
2018-02-14 2017-12-31 13F SOUTHWEST AIRLS COM 844741108 4,842,800 -782,400 -13.91 316,961 0.65 3.5429
2017-11-14 2017-09-30 13F SOUTHWEST AIRLS COM 844741108 5,625,200 7,000 0.12 314,899 -9.80 3.5777
2017-08-14 2017-06-30 13F SOUTHWEST AIRLS COM 844741108 5,618,200 0 0.00 349,115 15.59 3.9212
2017-05-15 2017-03-31 13F SOUTHWEST AIRLS COM 844741108 5,618,200 0 0.00 302,034 7.87 3.6711
2017-02-14 2016-12-31 13F SOUTHWEST AIRLS COM 844741108 5,618,200 125,000 2.28 280,011 31.07 3.6606
2016-11-14 2016-09-30 13F SOUTHWEST AIRLS COM 844741108 5,493,200 195,700 3.69 213,631 2.85 3.0850
2016-08-15 2016-06-30 13F SOUTHWEST AIRLS COM 844741108 5,297,500 1,587,500 42.79 207,715 24.97 3.4470
2016-05-16 2016-03-31 13F SOUTHWEST AIRLS COM 844741108 3,710,000 -1,977,500 -34.77 166,208 -32.13 2.6634
2016-02-16 2015-12-31 13F SOUTHWEST AIRLS COM 844741108 5,687,500 -22,500 -0.39 244,904 12.75 4.5061
2015-11-16 2015-09-30 13F SOUTHWEST AIRLS COM 844741108 5,710,000 1,562,000 37.66 217,208 58.25 4.5799
2015-08-14 2015-06-30 13F SOUTHWEST AIRLS COM 844741108 4,148,000 1,500,000 56.65 137,257 17.01 3.1041
2015-05-15 2015-03-31 13F SOUTHWEST AIRLS COM 844741108 2,648,000 -2,719,500 -50.67 117,306 -48.36 2.7051
2015-02-17 2014-12-31 13F SOUTHWEST AIRLS COM 844741108 5,367,500 -167,500 -3.03 227,153 21.53 5.2456
2014-11-14 2014-09-30 13F SOUTHWEST AIRLS COM 844741108 5,535,000 175,000 3.26 186,917 29.83 4.9860
2014-08-14 2014-06-30 13F SOUTHWEST AIRLS COM 844741108 5,360,000 545,000 11.32 143,970 26.64 3.9724
2014-05-15 2014-03-31 13F SOUTHWEST AIRLS COM 844741108 4,815,000 1,516,424 45.97 113,682 82.93 3.4360
2014-02-14 2013-12-31 13F SOUTHWEST AIRLS COM 844741108 3,298,576 3,298,576 62,145 2.0669
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-08-14 2020-06-30 13F SOUTHWEST AIRLS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F SOUTHWEST AIRLS COM Put 3,500 9,398 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.