Runway

Full Definition

Runway is calculated by dividing current cash and liquid equivalents by the monthly net burn rate. A company with $12M in cash burning $800K per month net has 15 months of runway. This single number is the most important constraint in any growth company's strategic planning—every investment decision, hiring plan, partnership negotiation, and product roadmap must be evaluated against available runway and the probability of raising additional capital before exhaustion. Boards should receive runway updates at every meeting, with scenario analysis showing impact of faster or slower burn. Conventional wisdom suggests companies should maintain at least 12–18 months of runway at all times and begin fundraising processes when 9–12 months remain. This allows adequate time for investor diligence, term sheet negotiation, and legal close, which together typically consume 3–6 months for equity rounds. In adverse market environments—during which institutional fundraising slows, valuations compress, and due diligence timelines extend—24+ months of runway is the appropriate minimum buffer for companies without a clear path to profitability. Runway management requires proactive scenario planning, not just tracking. CEOs and CFOs should maintain a clear-eyed view of the minimum viable burn rate—the level of spending below which the business cannot operate effectively—and the bridge strategy in adverse scenarios: what costs get cut first, which initiatives are paused, and at what point the board and management would consider strategic alternatives (partnership, sale, or wind-down). Companies caught with 2–3 months of runway have lost negotiating leverage entirely and face distressed outcomes regardless of underlying business quality.

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