KALU Short Volume

Kaiser Aluminum Corporation (KALU) operates in the Basic Materials sector, specifically the Aluminum industry, with a market capitalization near $2.93B, listed on NASDAQ, employing roughly 3,900 people, carrying a beta of 1.59 to the broader market. Kaiser Aluminum Corporation engages in manufacture and sale of semi-fabricated specialty aluminum mill products in the United States and internationally. Led by Keith A. Harvey, public since 2006-07-07.

Short volume measures the number of shares sold short on a given day as reported by FINRA. Tracking short volume relative to total volume helps identify unusual bearish sentiment or short-squeeze potential.

Latest Date
2026-05-15
Short Volume
37.7K
Total Volume
66.4K
Short %
56.78%
30-Day Avg Short %
49.30%

Showing 30 days of FINRA short volume data for Kaiser Aluminum Corporation.

Learn how short volume is reported and how to read the data →

Frequently asked KALU short volume questions

What is the daily KALU short volume?
As of May 15, 2026, Kaiser Aluminum Corporation (KALU) short volume is 37.7K shares against 66.4K total reported volume, or 56.78% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
How is KALU short volume reported?
FINRA publishes the Daily Short Sale Volume File for trades reported to FINRA TRFs and the FINRA/Nasdaq ADF on a T+1 basis. The headline figure is the count of shares that printed at the short-sale or short-exempt tick across all reporting venues for the symbol; each exchange separately publishes its own daily short-sale data file.
What does KALU short volume tell options traders?
Daily short-sale flow is one input that helps disambiguate dealer-hedging activity from directional bear flow when the chain shows fresh customer call inventory. It is not a clean MM-only proxy: the headline number mixes directional shorting, options-MM delta-hedging, ETF-creation arbitrage, and convertible-arb hedging. Cross-check against gamma-exposure and OI changes for a cleaner read.