CSTL

Castle Biosciences, Inc.

59
Fundamentals63/ 100
Valuation50/ 100
Upside potential60/ 100
Risk potential31/ 100

CSTL's outlook is improving, though it still trails on the overall score.

LLY

Eli Lilly and Company

78
Fundamentals85/ 100
Valuation62/ 100
Upside potential72/ 100
Risk potential15/ 100

LLY has the edge over CSTL overall, supported by stronger fundamentals and lower modeled downside.

CSTL Fundamentals

MetricStatus
Healthy
Under pressure
Under pressure
Strong

CSTL's revenue and balance sheet are currently healthy, but its profitability and cash flow are under pressure.

LLY Fundamentals

MetricStatus
Healthy
Strong
Strong
Healthy

LLY's revenue, profitability, cash flow and balance sheet are all currently healthy.

CSTL PE Valuation

CSTL has no meaningful PE right now: it lost money over the past year.

LLY PE Valuation

CHEAPFAIREXPENSIVE37x74x111x147x
CHEAPFAIREXPENSIVE37x74x111x147x
LevelPEPriceVs current
Cheap27x$845-41%
Forward30x$1,427—
Current46x$1,427—
Fair48x$1,466+2.7%
Expensive85x$2,612+83%

Historical ranges are pointers, not guarantees.

LLY's PE is in its fair range at 46x. If earnings grow as analysts expect, today's price would be 30x next year's earnings, in its cheap range.

CSTL Forward outlook

MetricOutlook
--
Losses shrinking
Strong growth
Strongly improving
Limited
High

Analysts expect CSTL's losses to shrink, with revenue growing.

LLY Forward outlook

MetricOutlook
Strongly improving
Strong growth
Strong growth
Strongly improving
Limited
Moderate

Analysts expect strong earnings and revenue growth for LLY, with profitability improving.

CSTL Risk to reward

ScenarioChangePrice
Upside+46%$50.41
Downside-31%$23.84

Calculated from the latest close: $34.50 on Nov 12.

CSTL trails LLY on modeled risk to reward, with less potential upside relative to its potential downside.

LLY Risk to reward

ScenarioChangePrice
Upside+39%$1,988.49
Downside-15%$1,209.08

Calculated from the latest close: $1,427.28 on Nov 12.

LLY has a better modeled risk to reward balance than CSTL, with more potential upside relative to its potential downside.

CSTL Earnings Per Share

Q4 2023: $-2.14Q1 2024: $-1.13Q2 2024: $-0.12Q3 2024: $0.22Q4 2024: $0.62Q1 2025: $-0.19Q2 2025: $-0.35Q3 2025: $-0.45Q4 2025: $-0.83Q1 2026: $-0.42Q2 2026: $-0.64Q3 2026: $-0.75
Q4 2023: $-2.14Q1 2024: $-1.13Q2 2024: $-0.12Q3 2024: $0.22Q4 2024: $0.62Q1 2025: $-0.19Q2 2025: $-0.35Q3 2025: $-0.45Q4 2025: $-0.83Q1 2026: $-0.42Q2 2026: $-0.64Q3 2026: $-0.75
QuarterTTM EPSYoY
Q3 2026-$0.75-$0.30
Q2 2026-$0.64-$0.29
Q1 2026-$0.42-$0.23
Q4 2025-$0.83-234%
Q3 2025-$0.45-305%
Q2 2025-$0.35-$0.23
Q1 2025-$0.19+$0.94
Q4 2024$0.62+$2.76

CSTL is still losing money, but far less than before: $0.75 per share over the past year, against $3.35 at its worst in mid-2023.

LLY Earnings Per Share

Q4 2023: $5.80Q1 2024: $6.79Q2 2024: $8.12Q3 2024: $9.25Q4 2024: $11.71Q1 2025: $12.29Q2 2025: $15.30Q3 2025: $20.44Q4 2025: $22.95Q1 2026: $28.15Q2 2026: $29.80Q3 2026: $30.81Forward: $46.82
Q4 2023: $5.80Q1 2024: $6.79Q2 2024: $8.12Q3 2024: $9.25Q4 2024: $11.71Q1 2025: $12.29Q2 2025: $15.30Q3 2025: $20.44Q4 2025: $22.95Q1 2026: $28.15Q2 2026: $29.80Q3 2026: $30.81Forward: $46.82
QuarterTTM EPSYoY
Forward$46.82+52%
Q3 2026$30.81+51%
Q2 2026$29.80+95%
Q1 2026$28.15+129%
Q4 2025$22.95+96%
Q3 2025$20.44+121%
Q2 2025$15.30+88%
Q1 2025$12.29+81%
Q4 2024$11.71+102%

LLY has the edge over CSTL on earnings quality, reporting a profit while its opponent remains loss making.

CSTL Quarterly Revenue

Q4 2023: $66MQ1 2024: $73MQ2 2024: $87MQ3 2024: $86MQ4 2024: $86MQ1 2025: $88MQ2 2025: $86MQ3 2025: $83MQ4 2025: $87MQ1 2026: $84MQ2 2026: $104MQ3 2026: $103M
Q4 2023: $66MQ1 2024: $73MQ2 2024: $87MQ3 2024: $86MQ4 2024: $86MQ1 2025: $88MQ2 2025: $86MQ3 2025: $83MQ4 2025: $87MQ1 2026: $84MQ2 2026: $104MQ3 2026: $103M
QuarterRevenueYoY
Q3 2026$102.9M+24%
Q2 2026$103.5M+20%
Q1 2026$83.7M-4.9%
Q4 2025$87M+0.8%
Q3 2025$83M-3.2%
Q2 2025$86.2M-0.9%
Q1 2025$88M+21%
Q4 2024$86.3M+31%

CSTL's revenue is growing: $103M last quarter, up 24% from the same quarter a year ago.

LLY Quarterly Revenue

Q4 2023: $9.4BQ1 2024: $8.8BQ2 2024: $11.3BQ3 2024: $11.4BQ4 2024: $13.5BQ1 2025: $12.7BQ2 2025: $15.6BQ3 2025: $17.6BQ4 2025: $19.3BQ1 2026: $19.8BQ2 2026: $23BQ3 2026: $24.4B
Q4 2023: $9.4BQ1 2024: $8.8BQ2 2024: $11.3BQ3 2024: $11.4BQ4 2024: $13.5BQ1 2025: $12.7BQ2 2025: $15.6BQ3 2025: $17.6BQ4 2025: $19.3BQ1 2026: $19.8BQ2 2026: $23BQ3 2026: $24.4B
QuarterRevenueYoY
Q3 2026$24.4B+39%
Q2 2026$23B+48%
Q1 2026$19.8B+56%
Q4 2025$19.3B+43%
Q3 2025$17.6B+54%
Q2 2025$15.6B+38%
Q1 2025$12.7B+45%
Q4 2024$13.5B+45%

LLY has the edge over CSTL on sales, with more consistent year-over-year improvement.

CSTL Free Cash Flow

Q4 2023: $15MQ1 2024: −$16MQ2 2024: $19MQ3 2024: $17MQ4 2024: $17MQ1 2025: −$11MQ2 2025: $12MQ3 2025: $8MQ4 2025: $20MQ1 2026: −$35MQ2 2026: $7MQ3 2026: $12M
Q4 2023: $15MQ1 2024: −$16MQ2 2024: $19MQ3 2024: $17MQ4 2024: $17MQ1 2025: −$11MQ2 2025: $12MQ3 2025: $8MQ4 2025: $20MQ1 2026: −$35MQ2 2026: $7MQ3 2026: $12M
QuarterFree cash flowYoY
Q3 2026$12.2M+57%
Q2 2026$6.6M-43%
Q1 2026-$34.6M-$23.8M
Q4 2025$19.7M+18%
Q3 2025$7.8M-54%
Q2 2025$11.6M-38%
Q1 2025-$10.8M+$5.2M
Q4 2024$16.8M+14%

CSTL still generates free cash flow, though less than at its 2025 peak: $4M over the past year.

LLY Free Cash Flow

Q4 2023: −$1.4BQ1 2024: $180MQ2 2024: $241MQ3 2024: $2.4BQ4 2024: $978MQ1 2025: $156MQ2 2025: $1.4BQ3 2025: $6.7BQ4 2025: $678MQ1 2026: $3BQ2 2026: $7.8BQ3 2026: $8.2B
Q4 2023: −$1.4BQ1 2024: $180MQ2 2024: $241MQ3 2024: $2.4BQ4 2024: $978MQ1 2025: $156MQ2 2025: $1.4BQ3 2025: $6.7BQ4 2025: $678MQ1 2026: $3BQ2 2026: $7.8BQ3 2026: $8.2B
QuarterFree cash flowYoY
Q3 2026$8.2B+22%
Q2 2026$7.8B+458%
Q1 2026$3B+1826%
Q4 2025$677.9M-31%
Q3 2025$6.7B+186%
Q2 2025$1.4B+476%
Q1 2025$156.1M-13%
Q4 2024$977.8M+$2.4B

LLY has the edge over CSTL on cash flow, with more consistent year-over-year improvement.

CSTL Total Shares

Q4 2023: 27MQ1 2024: 27MQ2 2024: 29MQ3 2024: 29MQ4 2024: 29MQ1 2025: 29MQ2 2025: 30MQ3 2025: 29MQ4 2025: 29MQ1 2026: 30MQ2 2026: 30MQ3 2026: 31M
Q4 2023: 27MQ1 2024: 27MQ2 2024: 29MQ3 2024: 29MQ4 2024: 29MQ1 2025: 29MQ2 2025: 30MQ3 2025: 29MQ4 2025: 29MQ1 2026: 30MQ2 2026: 30MQ3 2026: 31M
PeriodChange %Net change
Quarterly+0.8%+234K shares
1 year+5.4%+1.6M shares
3 years+14%+3.8M shares
5 years+21%+5.3M shares
Available history+64%+11.9M shares

CSTL has 31M diluted shares, up 5.4% from a year ago.

LLY Total Shares

Q4 2023: 903MQ1 2024: 904MQ2 2024: 904MQ3 2024: 905MQ4 2024: 904MQ1 2025: 901MQ2 2025: 900MQ3 2025: 899MQ4 2025: 899MQ1 2026: 896MQ2 2026: 894MQ3 2026: 893M
Q4 2023: 903MQ1 2024: 904MQ2 2024: 904MQ3 2024: 905MQ4 2024: 904MQ1 2025: 901MQ2 2025: 900MQ3 2025: 899MQ4 2025: 899MQ1 2026: 896MQ2 2026: 894MQ3 2026: 893M
PeriodChange %Net change
Quarterly0%-300K shares
1 year-0.6%-5.4M shares
3 years-0.7%-6.4M shares
5 years-1.9%-17.4M shares
Available history-4.5%-42.3M shares

LLY has the edge over CSTL on shareholder dilution, with a more favorable share count trend.

CSTL Net Leverage

Q3 2024: -6.8xQ4 2024: -4.5xQ1 2025: -2.8xQ2 2025: -3.7xQ3 2025: -9.6x
Q3 2024: -6.8xQ4 2024: -4.5xQ1 2025: -2.8xQ2 2025: -3.7xQ3 2025: -9.6x
QuarterNet LeverageStatus
Q3 2025-9.6xNet Cash
Q2 2025-3.7xNet Cash
Q1 2025-2.8xNet Cash
Q4 2024-4.5xNet Cash
Q3 2024-6.8xNet Cash
Q2 2020-19.8xNet Cash
Q1 2020-8.1xNet Cash
Q4 2019-9.6xNet Cash

CSTL has more cash than debt.

LLY Net Leverage

Q4 2023: 2.8xQ1 2024: 2.6xQ2 2024: 2.4xQ3 2024: 2.4xQ4 2024: 2.1xQ1 2025: 2.3xQ2 2025: 2.0xQ3 2025: 1.3xQ4 2025: 1.3xQ1 2026: 1.2xQ2 2026: 1.3xQ3 2026: 1.2x
Q4 2023: 2.8xQ1 2024: 2.6xQ2 2024: 2.4xQ3 2024: 2.4xQ4 2024: 2.1xQ1 2025: 2.3xQ2 2025: 2.0xQ3 2025: 1.3xQ4 2025: 1.3xQ1 2026: 1.2xQ2 2026: 1.3xQ3 2026: 1.2x
QuarterNet LeverageStatus
Q3 20261.2xHealthy
Q2 20261.3xHealthy
Q1 20261.2xHealthy
Q4 20251.3xHealthy
Q3 20251.3xHealthy
Q2 20252.0xHealthy
Q1 20252.3xModerate
Q4 20242.1xModerate

LLY's net debt is about 1.2 years of its operating earnings (EBITDA), about the same as a year ago.

CSTL Weekly Momentum

MetricValueStatus
RSI57.0Neutral
Stochastic63.5Neutral

CSTL's weekly RSI is 57 (neutral) and its Stochastic is 63 (neutral).

LLY Weekly Momentum

MetricValueStatus
RSI68.3Neutral
Stochastic84.1Overbought

LLY's weekly RSI is 68 (neutral) and its Stochastic is 84 (overbought).

CSTL PE vs Healthcare Sector

MetricCSTLSector medianRelative
PEN/A26x—

CSTL has no meaningful PE right now: it lost money over the past year.

LLY PE vs Healthcare Sector

MetricLLYSector medianRelative
PE46x26x79% above
PE %482919 pts above

LLY is trading at 46x earnings, a 79% premium to the Healthcare sector's median of 26x.

CSTL Weekly Moving Averages

Moving averageMA priceRelative
8 week MA$34.40.3% above
20 week MA$31.59.6% above
50 week MA$30.015% above
100 week MA$26.431% above
200 week MA$24.441% above

CSTL is in an uptrend: it's above all five of its weekly moving averages, and 41% above its 200-week average.

LLY Weekly Moving Averages

Moving averageMA priceRelative
8 week MA$1,279.412% above
20 week MA$1,218.817% above
50 week MA$1,102.229% above
100 week MA$954.150% above
200 week MA$797.579% above

LLY is in an uptrend: it's above all five of its weekly moving averages, and 79% above its 200-week average.

CSTL Yearly ROI

YearStart priceEnd priceROI
2020$34.0$71.3+110%
2021$71.3$42.6-40%
2022$42.6$23.2-45%
2023$23.2$21.6-7.1%
2024$21.6$26.8+24%
2025$26.8$39.4+47%
2026 YTD$39.4$34.5-12%

CSTL's yearly returns have swung widely, from +110% in 2020 to −45% in 2022. It's down 12% so far in 2026.

LLY Yearly ROI

YearStart priceEnd priceROI
2020$131.5$166.7+27%
2021$166.7$273.1+64%
2022$273.1$367.9+35%
2023$367.9$582.9+58%
2024$582.9$783.2+34%
2025$783.2$1,077.8+38%
2026 YTD$1,077.8$1,427.3+32%

LLY has the edge over CSTL on returns for 2026, with the stronger performance.

Give your agent the market.

Get API key