Observatory · observe first
Southwest Airlines
LUV · United States · Passenger Airlines · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.093%
12M weight contribution
-0.112 pp
3M weight contribution
-0.021 pp
12M price return
-22.7%
Share of matched S&P 500 members
Monthly observations through Dec 2018
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Dec 2018 | $26.1bn | 0.093% | -0.112 pp | -22.7% | No |
| Nov 2018 | $30.7bn | 0.102% | -0.104 pp | -9.5% | No |
| Oct 2018 | $27.6bn | 0.094% | -0.112 pp | -18.6% | No |
| Sep 2018 | $35.8bn | 0.114% | -0.092 pp | +3.5% | No |
| Aug 2018 | $35.1bn | 0.113% | -0.092 pp | +1.6% | No |
| Jul 2018 | $33.7bn | 0.197% | -0.009 pp | -3.8% | Yes |
| Jun 2018 | $29.5bn | 0.179% | -0.027 pp | -15.9% | No |
| May 2018 | $29.6bn | 0.180% | -0.026 pp | -15.8% | No |
| Apr 2018 | $31.1bn | 0.191% | -0.015 pp | -12.9% | No |
| Mar 2018 | $33.7bn | 0.207% | +0.001 pp | -5.6% | Yes |
| Feb 2018 | $34.0bn | 0.204% | -0.002 pp | -4.9% | No |
| Jan 2018 | $36.1bn | 0.206% | +0.000 pp | +0.0% | No |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.