Scenario Planning: Bear, Base, and Bull Cases

The difference between founders who survive downturns and those who don't often comes down to one thing: whether they planned for multiple futures or just the one they hoped for.

Why Single-Scenario Planning Fails

Most founders create one financial plan—their "base case." But this base case is usually their optimistic case in disguise. It assumes things go roughly according to plan, with minor setbacks.

The problem: startups rarely follow the plan. Markets shift. Products need pivoting. Key hires fall through. When reality diverges from your single plan, you're flying blind.

The Three Scenarios Framework

Instead, build three distinct scenarios:

Bear Case (Pessimistic)

Things go wrong—not catastrophically, but consistently. This isn't your worst nightmare; it's a realistic downside.

• Revenue grows at 50% of projected rate
• Key hires take 2 months longer
• Customer churn is 1.5x expected
• Unexpected costs add 15% to burn
• Fundraising takes 2 months longer

Base Case (Realistic)

Things go roughly as expected—some wins, some losses, but generally on track. This should reflect median outcomes for companies at your stage.

• Revenue hits 80% of initial projections
• Hiring is on schedule
• Churn matches industry benchmarks
• Minor unexpected expenses
• Fundraising takes expected time

Bull Case (Optimistic)

Things go well—not perfectly, but better than expected. This is achievable, not miraculous.

• Revenue exceeds projections by 20%
• Key hires start early
• Churn is lower than expected
• No major unexpected costs
• Strong investor interest

Quantifying the Scenarios

Each scenario should produce specific runway numbers:

Scenario	Monthly Burn (M6)	Revenue (M12)	Runway
Bear Case	$85K	$15K MRR	11 months
Base Case	$75K	$30K MRR	15 months
Bull Case	$70K	$45K MRR	19 months

Now you can see the range of outcomes—and plan accordingly.

Decision Triggers

The real power of scenario planning is defining triggers that move you from one scenario to another. These are leading indicators that tell you which future is unfolding:

When triggers hit, you don't just update your forecast—you activate the contingency plan you've already developed.

Contingency Actions

Each scenario should have pre-planned responses:

Bear Case Contingencies

• Delay non-critical hires by 3 months
• Reduce marketing spend by 30%
• Start fundraising conversations 2 months earlier
• Negotiate extended payment terms with vendors

Bull Case Actions

• Accelerate key hires
• Increase marketing investment
• Evaluate raising at higher valuation
• Expand product roadmap

Probability Weighting

Don't treat all scenarios equally. Assign probabilities based on your current information:

• Bear case: 25% probability
• Base case: 50% probability
• Bull case: 25% probability

Your expected runway is then: (0.25 × 11) + (0.50 × 15) + (0.25 × 19) = 15 months

But more importantly, you know there's a 25% chance you only have 11 months. That knowledge changes decisions.

Updating Scenarios

Scenarios aren't set-and-forget. Update them monthly as you get new information:

1. Review actual results vs. each scenario
2. Adjust probabilities based on which scenario best matches reality
3. Update the scenarios themselves if fundamental assumptions change
4. Check if any triggers have been hit

Communicating with Stakeholders

Scenario planning also improves board and investor conversations:

• "We're tracking between base and bull case through month 4"
• "Two of our bear case triggers are approaching—here's our contingency plan"
• "We're shifting probability weight toward the bear case based on sales cycle data"

This language demonstrates sophisticated financial thinking and proactive management—exactly what experienced investors want to see.