Explain the factors that feed into choosing a trading strategy
The idea
Four groups of inputs matter. Order characteristics: buy or sell, and size relative to average daily volume. Security characteristics: liquidity, spread, volatility, market depth and where it trades. Market conditions: current liquidity and volatility, which can change sharply around news or in stress. The manager's risk aversion, together with the urgency implied by how fast the trade's alpha decays. These inputs set the balance between market impact and execution risk: a small order in a liquid stock with fast-decaying alpha is traded aggressively, while a large order in an illiquid stock with slow-decaying alpha is worked patiently. The trap is setting urgency from order size alone while ignoring how quickly the information behind the trade loses value.
In the app: 1 practice questions on this outcome, a narrated walkthrough with diagrams, spaced review that brings it back before you forget it.
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