ROARABLE // PRO
GLOBAL DESKS // NYC --:--:-- NYSE
US TAPE
ROAR ▸

CSTL // Castle Biosciences Inc.

DES <GO> NASDAQ RQD COCKPIT → CIK 0001447362 ↗
Health Care • Medical Specialities
$38.51 ▲ +1.83 (+4.99%)
MKT CAP: $1.18B • VOL: 723.9K
CSTL // ROARABLE RATING & 5-PILLAR RQD CONFIDENCE 02:00 EST DETERMINISTIC ENGINE
▲ UPGRADE // C- (RQD 60) -> C (RQD 63)
ROARABLE C
RQD CONFIDENCE
63 / 100 +3D
5 X 20-PT QUANT PILLARS
E 0 D 35 C 59 B 70 A 86+
Roarable Hold — Fair / Balanced Risk-Reward
01 MASSIVE / SEC XBRL
Forensic Fundamentals
13 / 20
SOLID
FCF -22.5% vs NI -120% • ROIC-WACC -19.4% • Z 6.97
02 INSTITUTIONAL TAPE & TREND
Whale & Options Flow
16 / 20
STRONG
52W RANGE 78% • VS 200D +35% • RSI 64.6
03 SEC XBRL CAPITAL ALLOCATION
Insider & Capital Conviction
[LOCKED] FLAGGED
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04 FRED 90D r-MATRIX
Macro Regime Fit
13 / 20
SOLID
TAILWIND • r(10Y)=-0.03 (+23bp) • r(OAS)=-0.16
05 10-K REDLINE AUDIT
Forensic 10-K Risk
[LOCKED] FLAGGED
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ALERT

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CSTL // CANDLESTICK & AUTO-TRENDLINE WORKSTATION6M: +50.90%⚡ TESTING RESISTANCE
2026-11-02O $36.68H $38.51L $36.68C $38.51VOL 723.9K
RES: $39.82SUP: $32.36SMA50: $34.30SMA200: $28.52
$40.19$34.10$28.01$21.92$15.83RES $39.82SUP $32.36$38.512026-05-042026-06-172026-08-042026-09-172026-11-02
CSTL // INSTITUTIONAL BULL VS. BEAR FORENSIC DEBATE
UNDERWEIGHT CONVICTION: 34/100
BEAR 0
100 BULL

Castle Biosciences Inc. (CSTL) exhibits 79.4% gross margins and -9.3% return on invested capital within Health Care (Medical Specialities), balanced against a 24.0x enterprise multiple and 4.8% implied options volatility.

▲ INSTITUTIONAL BULL THESIS (LONG)
01. Operating Leverage & Capital Efficiency Moat

Sustained 79.4% gross profitability converts into -12.4% operating margin and -9.3% ROIC, outpacing sector cost of capital.

ROIC: -9.3% // GM: 79.4%
02. Top-Line Expansion & Cash Conversion

YoY revenue trajectory of +3.7% paired with 2.41% free cash flow yield supports self-funded R&D and capital return.

REV YOY: +3.7% // FCF YLD: 2.41%
03. Balance Sheet Solvency & Forensic Quality

Altman Z-Score of 6.97 and Piotroski F-Score of 6/9 indicate low near-term refinancing stress.

ALTMAN Z: 6.97 // F-SCORE: 6/9
▼ INSTITUTIONAL BEAR THESIS (SHORT / RISK)
01. Multiple Compression & Duration Sensitivity

Trading at 24.0x trailing P/E (— Fwd P/E) leaves valuation vulnerable if real 10Y TIPS yields spike.

P/E: 24.0x // EV/EBITDA: —
02. Options Skew & Event Volatility Risk

Options market prices a ±5.2% implied move with a 0.85 put/call ratio around $38.51 max pain.

IMPL MOVE: ±5.2% // P/C: 0.85
03. Competitive Margin & CapEx Cycle Pressure

Elevated industry capital intensity and customer concentration in Medical Specialities require continuous execution to defend -7.0% net margins.

NET MARGIN: -7.0% // D/E: 0.02x
KEY CATALYST // Upcoming 10-Q/10-K XBRL margin progression, guidance revision vs — forward consensus, and institutional 13F positioning.
MACRO REGIME // Monitor US 10Y Real Yields (DFII10) and High-Yield Credit Spreads (OAS) for beta-adjusted multiple impact (Beta 1.10).
FORM 4 & 13F FLOW OPEN OWN <GO>
FILER SIDE $ VALUE
INSPECT FULL OWNERSHIP LEDGER IN OWN <GO>
UNUSUAL OPTIONS TAPE OPEN OPT <GO>
STRIKE / EXP TYPE PREMIUM
INSPECT GEX & CHAIN IN OPT <GO>
KEY VALUATION & PROFITABILITY RATIOS XBRL FA <GO>
TRAILING P/E —
FORWARD P/E —
EV / EBITDA —
FCF YIELD 2.41%
GROSS MARGIN 79.4%
OPERATING MARGIN -12.4%
NET MARGIN -7.0%
ROIC % -9.3%
REV GROWTH YOY +3.7%
DILUTED EPS TTM —
DEBT / EQUITY 0.02x
DIVIDEND YIELD 0.00%
RSI-14 MOMENTUM 64.6
5Y EQUITY BETA —
FRED MACRO SENSITIVITY (PEARSON r) ECST <GO>
MACRO CORRELATION CALIBRATION ACTIVE BELOW.
FRED MACRO REGIME STRESS-TEST SIMULATOR // CSTLPEARSON R VARIANCE ENGINE
01 // SELECT FEDERAL RESERVE & CREDIT SHOCK SCENARIO
02 // POSITION NOTIONAL EXPOSURE
HEADLINE STRESS SCORE
75/100SEVERE DRAWDOWN PRESSURE
PRIMARY FACTOR EXPOSURE
DFII10 // -0.61 r
Latest: 2.08%
EST. DIRECTIONAL MOVE
-8.50%
Implied Px: $35.24
EST. DOLLAR VARIANCE
-$4,248
On $50,000 Notional
[LOCKED // MULTI-FACTOR DRAWDOWN HEDGE & MACRO TRIGGER ALERT]

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HEAD-TO-HEAD PEER COMPARISONS COMP <GO>