CENX
Century Aluminum Co
stockNASDAQ
At CloseOct 16, 2026 3:59:56 PM EDT
35.03USD+2.412%(+0.83)2,251,333
Pre-marketOct 16, 2026 9:29:59 AM EDT
34.64USD+1.287%(+0.44)
After-hoursOct 16, 2026 4:49:30 PM EDT
35.08USD+0.157%(+0.05)
As of 2026-09-30, there were 9,181,883 shares short with a short interest of 15.58%.
CENX Short Interest - Official
CENX Short Position Change - Official
CENX Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 15.58 | 9,181,883 | 5.06 | -519,514 | -5.36 | 98,993,295 | 58,922,191 |
| 2026-09-15 | 16.46 | 9,701,397 | 6.34 | -482,372 | -4.74 | 98,993,295 | 58,922,191 |
| 2026-08-31 | 17.28 | 10,183,769 | 5.16 | +1,002,656 | +10.92 | 98,993,295 | 58,922,191 |
| 2026-08-14 | 15.58 | 9,181,113 | 3.86 | -736,452 | -7.43 | 98,993,295 | 58,922,191 |
| 2026-07-31 | 16.83 | 9,917,565 | 5.72 | +140,571 | +1.44 | 98,974,047 | 58,922,191 |
| 2026-07-15 | 16.59 | 9,776,994 | 5.11 | +243,390 | +2.55 | 98,974,047 | 58,922,191 |
| 2026-06-30 | 16.18 | 9,533,604 | 3.09 | +1,279,349 | +15.50 | 98,974,047 | 58,922,191 |
| 2026-06-15 | 14.01 | 8,254,255 | 4.15 | +69,987 | +0.86 | 98,974,047 | 58,922,191 |
| 2026-05-15 | 13.89 | 8,184,268 | 4.85 | +3,054 | +0.04 | 98,974,047 | 58,922,191 |
| 2026-04-30 | 14.44 | 8,181,214 | 6.93 | +69,444 | +0.86 | 98,974,047 | 56,643,640 |
| 2026-04-15 | 14.32 | 8,111,770 | 4.24 | +544,065 | +7.19 | 98,974,047 | 56,643,640 |
| 2026-03-31 | 13.36 | 7,567,705 | 2.84 | -247,625 | -3.17 | 98,974,047 | 56,643,640 |
| 2026-03-13 | 13.80 | 7,815,330 | 3.14 | -235,144 | -2.92 | 98,974,047 | 56,643,640 |
| 2026-02-27 | 14.21 | 8,050,474 | 3.17 | +36,187 | +0.45 | 93,341,969 | 56,643,640 |
| 2026-02-13 | 14.15 | 8,014,287 | 3.37 | -356,263 | -4.26 | 93,341,969 | 56,643,640 |
| 2026-01-30 | 14.78 | 8,370,550 | 3.78 | -50,375 | -0.60 | 93,341,969 | 56,643,640 |
| 2026-01-15 | 14.87 | 8,420,925 | 3.71 | +807,741 | +10.61 | 93,341,969 | 56,643,640 |
| 2025-12-31 | 13.44 | 7,613,184 | 4.48 | +41,672 | +0.55 | 93,341,969 | 56,643,640 |
| 2025-12-15 | 13.37 | 7,571,512 | 4.25 | +187,600 | +2.54 | 93,341,969 | 56,643,640 |
| 2025-11-28 | 13.04 | 7,383,912 | 3.74 | -406,875 | -5.22 | 93,341,969 | 56,643,640 |
| 2025-11-14 | 14.81 | 7,790,787 | 2.33 | +288,033 | +3.84 | 93,341,969 | 52,592,599 |
| 2025-10-31 | 14.27 | 7,502,754 | 3.31 | -575,778 | -7.13 | 93,339,121 | 52,589,128 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.