greeksoup/ stock research
Stock research / United States / KALU / Short interest

Kaiser Aluminum Corp. short interest

Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back. Brokers submit it twice a month, and days to cover is how many days of normal trading it would take to buy them all back.

Short interest in Kaiser Aluminum Corp. was 958,467 shares at the 30 September 2026 settlement, up 1.2% on the previous settlement, with 3.91 days to cover at an average daily volume of 245,020 shares, as reported to FINRA.

SettlementShares shortChangeAverage daily volumeDays to cover
30 September 2026958,467+1.2%245,0203.91
15 September 2026946,598+3.0%184,9065.12
31 August 2026918,977+6.5%245,9673.74
14 August 2026862,831+17.5%229,4903.76
31 July 2026734,539-6.6%285,2412.58
15 July 2026786,386-13.8%257,5593.05
30 June 2026912,142+19.4%391,9822.33
15 June 2026763,795+29.0%210,7413.62
29 May 2026592,028+5.3%236,3952.50
15 May 2026562,430+10.9%226,3012.49
30 April 2026507,034+8.1%379,7131.34
15 April 2026468,864-0.3%206,3022.27
FINRA publishes consolidated short interest twice a month, about ten days after each settlement.
Read moreDays to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.

Source

FINRA equity short interest data, the public dataset.

The same record on your computer

GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.

Install