Castle Biosciences (CSTL) Research Hub

Castle Biosciences (CSTL) trades on NASDAQ, US in the Healthcare (Medical - Diagnostics & Research) sector. As of 2026-10-26, shares last closed at 33.3 USD (+0.67%), in a range — insufficient history for 200-DMA. Valuation: trailing P/E -57.76, market cap 0.74B. This hub links to the full technical, earnings and options research available for CSTL.

Last updated 2026-10-26 · Source: end-of-day prices (adjusted); indicators computed by SniperIQ

SectorHealthcare (Medical - Diagnostics & Research)
ExchangeNASDAQ, US
Last close33.3 USD (+0.67%)
52-week range19.86 USD – 37.99 USD
Trend regimeRange
14-day RSI49.7 (Neutral)
Trailing P/E-57.76
Market cap0.74B
Dividend yield0.00%
Next earnings2026-07-30

Available research for CSTL

Earnings

CSTL earnings date and last-quarter result: next report 2026-07-30, last quarter beat, P/E -57.76. Updated 2026-07-23.

Options: Covered Call

Covered Call on CSTL: how it works, illustrative setup around the real 33.3 USD price, max profit/loss, breakeven and when to use it. Educational.

Options: Iron Condor

Iron Condor on CSTL: how it works, illustrative setup around the real 33.3 USD price, max profit/loss, breakeven and when to use it. Educational.

Options: Protective Put

Protective Put on CSTL: how it works, illustrative setup around the real 33.3 USD price, max profit/loss, breakeven and when to use it. Educational.

Technical

CSTL technical analysis: range, last 33.3 USD, RSI 49.7, 52w range 19.86 USD–37.99 USD, real support/resistance. Updated 2026-10-26.

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Frequently asked questions

What sector is CSTL in?

Castle Biosciences (CSTL) is classified under Healthcare (Medical - Diagnostics & Research), listed on NASDAQ, US.

Is CSTL in an uptrend or downtrend?

As of 2026-10-26, CSTL is in a range — insufficient history for 200-DMA. See the full technical research page for support and resistance levels.

What is CSTL's trailing P/E ratio?

CSTL's trailing P/E is -57.76, with a market cap of 0.74B. See the earnings research page for full valuation detail.

When does CSTL next report earnings?

CSTL is next scheduled to report earnings on 2026-07-30.