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.
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.
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.