--- title: "Portfolio Construction and Execution for Indian Investors" description: "Portfolio construction for Indian investors: modern portfolio theory, position sizing, rebalancing rules, performance measurement, risk and execution costs." source_url: "https://www.rupeecase.com/learn/portfolio-construction" --- [RupeeCase Learn](/learn/)/Pillar guide/11 modules, 2 paths # Portfolio construction and execution Picking good stocks is a small part of investing. How you combine them, how much capital each position gets, when you rebalance, how you measure whether you are actually beating the benchmark, and how you execute without bleeding to slippage. That is the craft. This pillar covers it end to end. * **11**modules * **2**paths * **106 min**of reading [Start with 4.1](/learn/path-4/module-4-1-modern-portfolio-theory)The paths ## Building the portfolio Portfolio construction is the decision layer between strategy selection and live capital. Even if you have a perfect stock selection rule, a portfolio that sizes positions badly or rebalances on a bad schedule will underperform a portfolio that picks worse names with better construction. The math here is not optional. [4.1Modern Portfolio TheoryMean variance optimisation, efficient frontier, Markowitz framework. What still works and what does not.11 min](/learn/path-4/module-4-1-modern-portfolio-theory) [4.2Position sizingEqual weight, market cap, inverse volatility, risk parity. Which to pick when.8 min](/learn/path-4/module-4-2-position-sizing) [4.3Rebalancing strategiesCalendar based vs threshold based. Frequency tradeoffs. Tax drag in Indian equity.9 min](/learn/path-4/module-4-3-rebalancing-strategies) [4.4Performance measurementCAGR, IRR, Sharpe, Sortino, max drawdown. What each tells you and what it hides.9 min](/learn/path-4/module-4-4-performance-measurement) [4.5Risk managementVolatility targeting, drawdown control, stop-loss rules that do not hurt more than they help.9 min](/learn/path-4/module-4-5-risk-management) ## Executing in live markets A strategy that looks great in backtest can lose 2 or 3 percent a year to bad execution. Slippage, market impact, timing of orders, broker API quirks. Path 10 is about the gap between clean simulation and messy reality. ₹246 Statutory cost of a ₹1 lakh delivery round trip, before brokerage and slippage Oct 2026 rates, Module 10.2 0.05% STT on futures sales from 1 April 2026, up from 0.02% Finance Act 2026 10 Orders per second per exchange above which an algo needs registration SEBI framework, live 1 Apr 2026 Construction and execution meet on rebalance day. How often a portfolio rebalances and how much of it trades decide both the cost and the tax. In RupeeCase's published model records, a two week multicap index typically changes about a fifth of its names at each rebalance, while an equal weight Nifty 50 index barely changes names at all. Same discipline, very different bills. [10.1How orders actually work: market microstructure in IndiaOrder books, matching engines, tick size, pre-open, auction periods.12 min](/learn/path-10/module-10-1-how-orders-actually-work-market-microstructure-india) [10.2The real cost of trading: slippage and transaction costsBid-ask spread, market impact, STT, GST, brokerage, exchange charges.11 min](/learn/path-10/module-10-2-the-real-cost-of-trading-slippage-and-transaction-costs) [10.3Systematic execution: APIs, algos, SEBI rulesBroker APIs, algo approval, SEBI co-location rules, order throttling.10 min](/learn/path-10/module-10-3-systematic-execution-in-india-apis-algos-and-sebi-rules) [10.4Paper trading to live: the hardest transitionWhy backtests lie to you and what to do about it before putting real money down.9 min](/learn/path-10/module-10-4-paper-trading-to-live-the-hardest-transition) [10.5Portfolio monitoring and rebalancing in practiceDaily routines, alert design, handling corporate actions mid-strategy.9 min](/learn/path-10/module-10-5-portfolio-monitoring-and-rebalancing-in-practice) [10.6Scaling: when your strategy meets capacityWhy a strategy that works on ₹10L may break at ₹10Cr. Liquidity constraints.9 min](/learn/path-10/module-10-6-scaling-when-your-strategy-meets-capacity) ## Common questions about portfolio construction ### What is portfolio construction? Portfolio construction is how you combine stocks into one portfolio: how much capital each position gets, when you rebalance, and how you measure results. [Path 4](/learn/path-4/) covers modern portfolio theory, position sizing, rebalancing, performance measurement and risk management. ### How often should a portfolio be rebalanced? It depends on the rule. [Module 4.3](/learn/path-4/module-4-3-rebalancing-strategies) compares calendar based and threshold based rebalancing, the frequency tradeoffs and the tax drag in Indian equity. A quantitative index fixes its schedule in advance, so nobody decides by feel. ### Why does execution matter if a backtest looks good? A rule that backtests well can still lose 2 or 3 percent a year to slippage, market impact and order timing. [Path 10](/learn/path-10/) covers all three, and [Module 10.4](/learn/path-10/module-10-4-paper-trading-to-live-the-hardest-transition) covers the move from paper trading to live. PThe paths ## 2 paths carry this pillar. [Path 04Portfolio ConstructionAdvanced, 5 modules, 46 min](/learn/path-4/)[Path 10Strategy Implementation and ExecutionAdvanced, 6 modules, 60 min](/learn/path-10/) QQuestions ## Answered from the modules. What is portfolio construction?Portfolio construction is how you combine stocks into one portfolio: how much capital each position gets, when you rebalance, and how you measure results. Path 4 covers modern portfolio theory, position sizing, rebalancing, performance measurement and risk management. How often should a portfolio be rebalanced?It depends on the rule. Module 4.3 compares calendar based and threshold based rebalancing, the frequency tradeoffs and the tax drag in Indian equity. A quantitative index fixes its schedule in advance, so nobody decides by feel. Why does execution matter if a backtest looks good?A rule that backtests well can still lose 2 or 3 percent a year to slippage, market impact and order timing. Path 10 covers all three, and Module 10.4 covers the move from paper trading to live. What does a rebalance actually cost in India?A ₹1 lakh delivery buy and sell costs about ₹246 in statutory charges at October 2026 rates, mostly STT, before brokerage and slippage. Turnover and holding period then decide the tax. Modules 10.2 and 10.5 work through both. +Other pillars [PillarIndian Markets14 modules, paths 1, 6](/learn/indian-markets)[PillarSystematic Investing18 modules, paths 2, 3, 5](/learn/systematic-investing)[PillarBehaviour and Business13 modules, paths 8, 9](/learn/behaviour-and-business)[PillarMacro, Tax, Regulation14 modules, paths 7, 11](/learn/macro-tax-regulation) Education only, not investment advice. RupeeCase is a technology platform operated by QC Alpha Technologies Pvt Ltd; it is not a fund, a PMS or a SEBI registered investment adviser. Model returns are back tested and not a promise of future returns. Figures carry the date they were checked. Explore next ## Where to go next. * [CalculatorAsset allocation by risk profileFree, with the formula and a worked example](/learn/tools/asset-allocation-calculator) * [CalculatorPosition size calculatorFree, with the formula and a worked example](/learn/tools/position-size-calculator) * [Blog noteTwenty funds, one betPortfolio construction, a short note](/blog/2026-08-07-evening-twenty-funds-one-bet/) * [Blog noteThe mix beats the pickPortfolio construction, a short note](/blog/2026-07-24-evening-mix-beats-the-pick/) * [StrategyDynamic Asset Allocator strategyNifty Total Market plus debt and gold, 52 stocks, every 3 weeks](/strategies/dynamic-asset-allocator) * [GlossaryInvesting glossary, 91 termsPlain word definitions](/learn/glossary)