Southwest Airlines Co.
MX ˙ BMV ˙ US8447411088
SecurityMX:LUV / Southwest Airlines Co.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership251,039 shares
Latest Disclosed Value $ 9,432,170
Advisor Group Holdings, Inc. ownership in LUV / Southwest Airlines Co.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 251,039 shares of Southwest Airlines Co. (MX:LUV) valued at $9,432,170 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 226,357 shares of Southwest Airlines Co.. This represents a change in shares of 10.90% during the quarter.

Advisor Group Holdings, 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.

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Institutional Put/Call Ratios
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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 251,039 24,682 10.90 9,432 0.81 0.0080
2026-02-17 2025-12-31 13F SOUTHWEST AIRLS COM 844741108 226,357 8,752 4.02 9,356 33.20 0.0137
2025-11-14 2025-09-30 13F SOUTHWEST AIRLS COM 844741108 217,605 9,413 4.52 7,025 3.95 0.0098
2025-09-04 2025-06-30 13F/A-1 OUTHWEST AIRLS COM 844741108 208,192 11,890 6.06 6,757 2.50 0.0120
2025-08-13 2025-06-30 13F OUTHWEST AIRLS COM 844741108 196,640 338 6,491 0.0075
2025-05-12 2025-03-31 13F SOUTHWEST AIRLS COM 844741108 196,302 1,470 0.75 6,593 0.64 0.0147
2025-06-06 2024-12-31 13F/A-1 SOUTHWEST AIRLS COM 844741108 194,832 50,695 35.17 6,551 53.36 0.0147
2025-02-07 2024-12-31 13F SOUTHWEST AIRLS COM 844741108 167,749 23,612 5,382 0.0137
2024-11-13 2024-09-30 13F SOUTHWEST AIRLS COM 844741108 144,137 31,348 27.79 4,271 32.39 0.0096
2024-08-13 2024-06-30 13F SOUTHWEST AIRLS COM 844741108 112,789 -16,532 -12.78 3,227 -14.52 0.0076
2024-05-10 2024-03-31 13F SOUTHWEST AIRLS COM 844741108 129,321 -42,813 -24.87 3,774 -24.06 0.0084
2024-02-12 2023-12-31 13F SOUTHWEST AIRLS COM 844741108 172,134 -58,919 -25.50 4,970 -20.54 0.0087
2023-11-13 2023-09-30 13F SOUTHWEST AIRLS COM 844741108 231,053 44,864 24.10 6,255 -7.44 0.0092
2023-08-21 2023-06-30 13F/A-1 SOUTHWEST AIRLS COM 844741108 186,189 -9,572 -4.89 6,758 6.14 0.0121
2023-08-10 2023-06-30 13F SOUTHWEST AIRLS COM 844741108 188,231 -7,530 6,756 0.0018
2023-05-12 2023-03-31 13F SOUTHWEST AIRLS COM 844741108 195,761 -44,720 -18.60 6,368 -21.36 0.0120
2023-02-10 2022-12-31 13F SOUTHWEST AIRLS COM 844741108 240,481 -12,422 -4.91 8,097 3.79 0.0164
2022-11-14 2022-09-30 13F SOUTHWEST AIRLS COM 844741108 252,903 -63,842 -20.16 7,800 -31.88 0.0178
2022-08-10 2022-06-30 13F SOUTHWEST AIRLS COM 844741108 316,745 38,896 14.00 11,451 -4.14 0.0253
2022-05-04 2022-03-31 13F SOUTHWEST AIRLS COM 844741108 277,849 -3,663 -1.30 11,945 -1.13 0.0232
2022-02-03 2021-12-31 13F SOUTHWEST AIRLS COM 844741108 281,512 -19,637 -6.52 12,082 -22.27 0.0229
2021-11-05 2021-09-30 13F SOUTHWEST AIRLS COM 844741108 301,149 8,167 2.79 15,544 -0.15 0.0324
2021-08-02 2021-06-30 13F SOUTHWEST AIRLS COM 844741108 292,982 5,721 1.99 15,568 -11.26 0.0337
2021-05-13 2021-03-31 13F SOUTHWEST AIRLS COM 844741108 287,261 -4,051 -1.39 17,544 29.23 0.0422
2021-02-10 2020-12-31 13F SOUTHWEST AIRLS COM 844741108 291,312 1,003 0.35 13,576 25.75 0.0363
2020-11-12 2020-09-30 13F SOUTHWEST AIRLS COM 844741108 290,309 -1,184 -0.41 10,796 8.34 0.0323
2020-08-14 2020-06-30 13F SOUTHWEST AIRLS COM 844741108 291,493 15,652 5.67 9,965 36.79 0.0334
2020-05-18 2020-03-31 13F SOUTHWEST AIRLS COM 844741108 275,841 275,841 7,285 0.0298
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 CO PUT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-18 2020-03-31 13F SOUTHWEST AIRLS CO PUT COM Put 40 61 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.