Desk Slang · Core
Short Covering
Short covering is buying to close a short — a rally driven by the short base shrinking, not by new longs arriving with a fundamental bid.
Definition
Covering is mechanically a bid. If the short interest is large and the borrow is tight, covering can become a squeeze (price must rise to find the cover). It can happen without any upgrade to cash flows.
Why it matters
A cover rally dies when the shorts are done. Treating it as a new bull market is how you buy the high of the squeeze.
Case
GameStop 2021 was covering plus gamma. Many 2020 single-name V-shapes had a cover component after March.
How to read it
Watch borrow fees, days-to-cover, and whether cash bonds or CDS confirm. Equity up, credit worse is often cover, not healing.
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