Malone, guided by his mentor Moses, always analyzed the worst-case scenario before considering the upside. This risk-first approach, focusing on what happens if a deal fails, was central to his investment philosophy and long-term survival.

A board's duty to maximize shareholder value is an expected value calculation. A $100B offer with a 75% chance of closing is valued at $75B, making an $80B offer with 100% certainty more attractive. Boards weigh financing and regulatory risks heavily against the headline price.

Apollo's foundational private equity strategy—seeking value, being contrarian, and investing flexibly across the capital structure—was not siloed. This single philosophy of maximizing return per unit of risk now guides every investment decision across their entire platform, including credit and insurance.

Instead of running a broadly diversified book of merger arbitrage deals, Farallon focuses only on the best large-cap transactions with wide spreads. This selective approach is highly accretive when integrated into a multi-strategy fund where diversification comes from other parts of the portfolio.

To decide whether to sell his company, Zach used the Expected Value (EV) framework. This method from gambling and investing helps remove emotion from the choice by multiplying the potential outcomes by their probability, creating a more objective basis for high-stakes decisions.

Unlike pod-based multi-manager funds, Farallon runs a single P&L with a highly concentrated portfolio. They accept more idiosyncratic risk on individual positions but use substantially less leverage. This structure fosters collaboration to capture opportunities that fall between traditional strategy silos.

Being based in San Francisco is a core part of Farallon's identity. The physical distance from the New York financial hub is an intentional strategic choice, allowing the firm to develop contrarian investment approaches and make decisions without being swayed by prevailing groupthink.

A common investor mistake is underwriting a deal that requires 15-20 different initiatives to go perfectly. A superior approach concentrates on 3-5 key value drivers, recognizing that the probability of many independent events all succeeding is mathematically negligible, thus providing a more realistic path to a strong return.

A core discipline from risk arbitrage is to precisely understand and quantify the potential downside before investing. By knowing exactly 'why we're going to lose money' and what that loss looks like, investors can better set probabilities and make more disciplined, unemotional decisions.