Free Tools — No Sign-Up Required
CSE Investment Calculators
Professional-grade tools built specifically for Colombo Stock Exchange investors. All fee figures sourced directly from cse.lk.
Position Size Calculator
Risk-based share quantity for any CSE stock
Calculate exactly how many shares to buy so that your loss never exceeds a fixed percentage of your portfolio if the stock hits your stop-loss. Accounts for CSE transaction costs on the buy side.
%
Recommended: 1–2% per trade
%
CSE maximum is 0.640%. Many brokers charge 0.50–0.64%. Check your broker's schedule.
Enter all values above — entry price must be above stop-loss price
Want AI-powered analysis on top of these numbers?
rovana.ai overlays 10-factor quantitative scoring, Wyckoff/VSA chart patterns, and Granger causality signals on every CSE stock — free for registered users.
Get Free Access →Pro Tools
Advanced analytical calculators — available on the Pro plan.
📐PRO
Fair Value Estimator
Graham Number and earnings-yield fair value range with margin-of-safety bands
Graham Number · Earnings Yield · Sector P/E benchmarks · MoS bands
⚖️PRO
Break-Even Sell Calculator
Exact minimum sell price needed to cover CSE buy + sell fees and hit your target return
All-in cost basis · STL + CSE + CDS + SEC + brokerage · Return target
📈PRO
Dividend Growth Projector
Project annual dividend income and portfolio yield-on-cost over 1–30 years with DRIP reinvestment
Yield on cost · DRIP compounding · Growth rate scenarios · Income milestones