Vertex Pharmaceuticals Inc (VRTX) Daily/Weekly Backtest Results

Signal:                
                   
              [ What are these? | Switch to VRTX's monthly backtests ]
Fixed profit target:               -or-  
Show signal scores:       Scores:           Market sector score:       [ What are these scores? ]
Expectancy: 8.39%.   Win rate: 100%.   Sharpe Ratio: 10.628.   Maximum drawdown: -8.41% on 05 October 2021.
Mean CAGR: 69.07%. Time in market: 291 days.   Hypothetical return: $1000 would be worth $1173.91 on 09 December 2021.
Key: change_history : profitable trade change_history : breakeven trade (minimal loss after 2 years) change_history : losing trade (not profitable in a 2 year timeframe)


*Transaction costs, taxes and dividends are excluded from these calculations. Past performance may not necessarily be a reliable guide to future performance.

Calculations for Vertex Pharmaceuticals

Expectancy is the percentage profit or loss you would expect to make on the next purchase of this stock with an entry point at the specified signal and profit target as set above. Given a large enough sample size, a positive expectancy indicates the trading strategy is likely to be profitable.

Expectancy calculation for 3 signal(s) occurring before 05 August 2024 for a 7.5% profit target: (100% * 8.39%) + (0% * 0%) - (0% * 0%) = 8.39%.
Wins: 3 Breakevens: 0 Losses: 0

The Sharpe Ratio calculation assumes a risk free return rate of 2% per calendar year. Ideally the ratio should be a positive number. A higher positive number indicates the strategy has a more attractive risk adjusted rate of return for this particular buy signal and stock over the chart's timeframe.

Vertex Pharmaceuticals Analysis

Market sector: Energy.

External links: Seeking Alpha Research, Zacks Research.

These links may show useful information about why a stock's price has fallen significantly.

Most Recent Buy Signals
Date Signal Type Scores Performance
Signal Sector WR Speed Risk Overall 5% 6% 7.5%
11 August 2026  bubble_chart Gap Up 27 57 100 84 78 43 schedule schedule schedule
16 July 2026  bubble_chart Mega Dump Lite 43 57 100 83 81 55 schedule schedule schedule
08 July 2026  bubble_chart Gap Down 58 56 100 83 81 65 schedule schedule schedule
16 June 2026  bubble_chart Oversold Rebound 46 47 100 83 81 54 select_check_box electric_boltelectric_boltelectric_bolt select_check_box electric_boltelectric_boltelectric_bolt select_check_box electric_boltelectric_boltelectric_bolt
15 May 2026  bubble_chart Gap Down 28 80 100 81 81 48 schedule schedule schedule
14 April 2026  bubble_chart Double Seven 55 74 100 80 81 68 schedule schedule schedule
09 April 2026  bubble_chart Double Seven 47 67 100 80 80 60 schedule schedule schedule
07 April 2026  bubble_chart Williams %R (Weekly) 40 73 100 80 80 57 select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt
06 April 2026  bubble_chart 50 Day Low 46 72 100 80 80 61 select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt
01 April 2026  bubble_chart Mega Dump Lite 41 67 100 80 80 56 select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt

52 Week Low Backtest Summary (Fixed Profits System)

This table summarises how profitable it would have been to have bought this stock at each 52 week low entry signal. Hover over the icons to see more details of the particular trade, including the maximum percentage drawdown and how long it took to reach the desired percentage profit.

Key:   disabled_by_default = profit point not achieved. select_check_box = profit point achieved with CAGR above 15%.
select_check_box = profit point achieved with CAGR of between 5% and 15%. select_check_box = profit point achieved but CAGR was less than 5%.

Date Buy Signal Price Scores Performance (mouseover for details)
Signal Sector WR Speed Risk Overall 5% 6% 7.5% 10% 20%
05 August 2025  bubble_chart 52 Week Low $ 391.60 61 49 100 66 80 62 select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt
19 December 2024  bubble_chart 52 Week Low $ 393.82 80 88 100 61 83 86 select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt
17 September 2021  bubble_chart 52 Week Low $ 187.27 22 78 100 81 80 42 select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt select_check_box electric_bolt
11 June 2021  bubble_chart 52 Week Low $ 193.53 32 66 100 74 84 48 select_check_box select_check_box select_check_box select_check_box select_check_box electric_bolt
05 December 2016 52 Week Low $ 75.84 62 93 select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt select_check_box electric_boltelectric_bolt

 

The data for Vertex Pharmaceuticals Inc (exchange: XNAS symbol: VRTX) was last updated 13 Aug 2026 08:56. Data for this stock is available from 01 Dec 2015 - 12 Aug 2026.