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Nasdaq:CSTL
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Castle Biosciences (CSTL)

Nasdaq • CSTL • US14843C1053

32.52Last close
Market Closed
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ORTEX Data Highlights

As of Oct 22, 2026, ORTEX estimated 7.3% of free float sold short, 5.6 days to cover, cost to borrow 0.41%. Sign up for live short interest data.

Market Cap

1b USD | # 4961 in US

Volume

375.29k shares | 12.68m USD

Shares Outstanding

30.55m

Free Float Shares

89.04% | 27.2m

DB:086

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CSTL key data

Castle Biosciences (Nasdaq: CSTL) has a market capitalization of $1B. Last close $32.52 (as of 2026-11-09); 52-week range $17.72 to $44.28. ORTEX data as of 2026-10-22: short interest was 7.26% of free float, 5.6 days to cover and the average cost to borrow was 0.41%. Sign up for live short interest data.

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