Buy the Dip—But Only If You Have a Deployment System

Part 5 of the Rational Compounding Framework

March 2020. The S&P 500 drops 34% in 23 days.

I watched people react in three ways:

Group 1: Panic-sold everything. “It’s going to zero.” They locked in losses and missed the entire recovery.

Group 2: Said “buy the dip” on Twitter. Did nothing. Had no cash. Watched from the sidelines while the market doubled over the next 18 months.

Group 3: Had a deployment system. Put $50K-200K to work during the crash. Captured the entire recovery.

Group 3 made life-changing money. Not because they were smarter. Not because they timed the bottom perfectly. Because they had dry powder and a system for putting it to work.

March 2020: The Real Numbers (What These Systems Actually Returned)

Here’s what happened if you put cash to work during the COVID crash:

If you put $100K to work at the -30% mark (March 16), you had $160K by December 2020 (9 months) and $221K by July 2023.

That’s 60% returns in 9 months and 121% in 3 years—just from having cash when others were tapped out.

This is why the 3-Tier Deployment System works.

How Often Do Market Crashes Actually Happen?

Here’s the data most investors don’t know:

Translation: You will see multiple 20%+ crashes in your investing lifetime. Guaranteed.

The only question: Will you have deployable capital when they hit?

Most US investors don’t. They’re 100% invested, sitting on the sidelines, watching the opportunity pass.

This is what separates systematic wealth builders from everyone else.

Does Buying the Dip Actually Work?

Yes—when you have a system.

The data is clear: putting capital to work during 20-40% crashes generates outsized returns. The March 2020 example above shows 60-121% returns over 9-36 months.

But most people fail because they either:

1. Have no cash available (100% invested)
2. Freeze during the crash (no mechanical rules)
3. Act too early or too late (timing based on emotion)

The 85-10-5 Model solves all three problems.

You always have 10-15% cash ready. You buy at specific triggers (-20%, -30%, -40%). You remove emotion from the equation.

The average US investor didn’t act in March 2020—they froze. Those with systems captured generational returns.

Let me show you how to actually do this.

Why “Buy the Dip” Fails for Most People

The phrase “buy the dip” is everywhere. Twitter. Reddit. CNBC. Your group chat.

Everyone agrees you should buy when stocks are down. Almost nobody does it.

Why?

Problem 1: No Dry Powder

When the market crashes, most people are 100% invested.

They have:

• $500K in their 401k (already deployed)
• $100K in taxable brokerage (already deployed)
• $20K emergency fund (untouchable)

Total deployable capital during the crash: $0

They watch the S&P drop 30% and think “I should buy more.” But with what money?

Saying “buy the dip” without cash is like planning a vacation with no money.

You can’t buy the dip if you’re already all-in. You’re a spectator, not a buyer.

Problem 2: No System for When to Deploy

Even if you have cash, you freeze.

The market drops 10%. “Is this the dip?”
It drops 15%. “Should I buy now or wait?”
It drops 25%. “What if it goes lower?”
It drops 35%. “This feels like a falling knife.”
It recovers to -20%. “I missed it.”

Without a system, you either:

• Act too early (market keeps dropping, you feel stupid)
• Act too late (market already recovered 15%, you feel stupid)
• Never act (paralyzed by uncertainty, you feel stupid)

All three outcomes feel terrible. So people do nothing.

Most people don’t fail because they lack money. They fail because they lack a plan when money matters most.

Problem 3: Emotional Paralysis During Crashes

Here’s what March 2020 actually felt like if you were living through it:

• CNN: “Worst crash since 1929”
• Your portfolio: Down $200K in two weeks
• Your friends: Panic-selling everything
• Your gut: “What if this is 2008 again and it takes 5 years to recover?”

When you’re scared, you can’t think clearly. You need a system that removes thinking from the equation.

Deployment systems work because they’re mechanical. You follow the rules. Emotion doesn’t factor in.

The System in 10 Seconds:

• 85% → Always invested (core portfolio)
• 10% → Activate at -20% to -30% drops
• 5% → Activate at -30% to -40%+ crashes

That’s it. That’s the whole system.

The 85-10-5 Deployment Model

Here’s the framework that lets you actually buy dips instead of just talking about them:

The 85-10-5 Deployment Model:
85% always invested (core portfolio), 10% opportunity fund (deploys at 20-30% drops), 5% dry powder (deploys at 40%+ crashes). Removes emotion. Captures recoveries systematically.

The one-line version:
85% invested. 10% ready. 5% aggressive.

Tier 1: Always-Deployed Capital (85%)

This is your core portfolio. Always invested. Never moved.

• 401k: Maxed and fully invested
• IRA: Maxed and fully invested
• Most of your taxable brokerage: Fully invested

Allocation:

• 70% total US stock market (VTI)
• 20% international (VXUS)
• 10% bonds if over 40 (BND)

You contribute to these accounts like clockwork. You ignore the market. You don’t check prices. You just buy on schedule—every month, every paycheck, every quarter.

This is dollar-cost averaging. It’s boring. It works.

Why 85%? Because most of your wealth should always be working. You’re not a market timer. You’re a long-term compounder.

Tier 2: Opportunity Fund (10%)

This is capital you can put to work during market crashes.

• Held in high-yield savings (4-5% APY currently)
• Never touched unless the market drops 20%+
• Replenished after being used

Why hold cash earning 5% when stocks return 10%?

Because during crashes, cash lets you buy when everyone else is capitulating.

March 2020 example:

• You have $100K opportunity fund
• S&P drops 34%
• You put the full $100K to work at -30%
• Market recovers 75% over 18 months
• Your $100K becomes $175K

That’s a 75% return in 18 months. Much better than the 5% you “lost” holding cash.

The opportunity fund is insurance against missing crashes. You pay for it with slightly lower returns during bull markets. You collect when everyone else is panicking.

Tier 3: Dry Powder Reserve (5%)

This is your “aggressive opportunity” fund.

• Also held in high-yield savings
• Only used in extreme crashes (30%+ drops)
• Fully committed if market drops 40%+

Why separate this from Tier 2?

Because crashes have levels:

• -10% to -20%: Normal correction (no action)
• -20% to -30%: Tier 2 activation (partial)
• -30% to -40%: Tier 2 full use + Tier 3 partial
• -40%+: Tier 2 + Tier 3 full use (bet the farm)

You want different tranches for different severity levels.

The Mechanical Deployment Rules

Before we get into the rules, check where you stand:

Deployment Readiness Check:

• Do you have 10-15% of your portfolio in cash? (Calculate it now)
• Do you know exactly when you’d deploy? (Or just “when it feels right”?)
• Have you set S&P alerts for -20%, -30%, -40%? (Or do you just check randomly?)

If you answered “No” to any of these, keep reading. Here’s the system.

Here’s the system. No thinking required.

Rule 1: S&P Down 20% → Deploy 25% of Tier 2 (Testing the Waters)

Market drops from 5,000 to 4,000 (-20%):

• Opportunity fund: $100K
• Execute buy: $25K (25% of Tier 2)
• Buy: VTI or VTSAX
• Remaining: $75K Tier 2 + $50K Tier 3

Rule 2: S&P Down 25% → Deploy Next 25% of Tier 2

Market drops from 5,000 to 3,750 (-25%):

• Already deployed: $25K at -20%
• Execute buy: $25K more (next 25% of Tier 2)
• Total Tier 2 deployed so far: 50%
• Remaining: $50K Tier 2 + $50K Tier 3

Rule 3: S&P Down 30% → Deploy Remaining 50% of Tier 2 + 25% of Tier 3

Market drops from 5,000 to 3,500 (-30%):

• Already deployed: $50K total
• Execute buy: $50K (rest of Tier 2) + $12.5K (25% of Tier 3)
• Tier 2 is now empty
• Remaining: $37.5K Tier 3

Rule 4: S&P Down 40%+ → Deploy Remaining 75% of Tier 3 (Bet the Farm)

Market crashes from 5,000 to 3,000 (-40%):

• Already deployed: $112.5K total
• Execute buy: All remaining Tier 3 ($37.5K)
• Total deployed: $150K (100% of reserves)
• This has only happened twice in 50 years (2008, 2020 briefly)

Rule 5: After Deployment, Rebuild Immediately

Market recovers:

• Resume saving 10% of income to opportunity fund
• Stop when it reaches target amount ($100K in our example)
• Don’t deploy this capital until next crash

March 2020: How This Played Out in Real Life

Let’s walk through what this system looked like during COVID.

Starting Position (February 2020):

• Total portfolio: $1 million
• Tier 1 (always invested): $850K
• Tier 2 (opportunity fund): $100K
• Tier 3 (dry powder): $50K

March 12, 2020: S&P Drops to -20%

• Execute: $25K (25% of Tier 2)
• Buy: VTI at $135 (was $165 in February)
• Remaining: $75K Tier 2 + $50K Tier 3

March 23, 2020: S&P Drops to -34%

• Execute: $75K (rest of Tier 2) + $25K (50% of Tier 3)
• Buy: VTI at $115
• Remaining: $25K Tier 3 (held in reserve)

Total invested: $125K at an average price of ~$120

December 2020: S&P Fully Recovered

• VTI back to $165
• Your $125K deployed → Now worth $172K
• Gain: $47K (38% return in 9 months)

Meanwhile:

• Your Tier 1 ($850K) also recovered
• Your Tier 3 ($25K) stayed in cash (no 40%+ crash)

Portfolio value December 2020: $1,047,000

Without the system: $1,000,000 (just held through)

The system added $47K in 9 months. And this was a relatively mild crash that recovered quickly.

What If You Deploy and the Market Keeps Falling?

This is the fear that stops most people.

“What if I buy at -20% and it drops to -40%?”

Here’s what happens:

Short-term: You’re underwater. Your $25K invested at -20% might be worth $18K when the market hits -30%.

The system’s response: You invest more at -30% (another $50K). Now your average cost basis is lower.

Long-term: Markets always recover. The question isn’t “if”—it’s “when.”

Since 1950, every 20%+ crash has recovered within 12-36 months. Every single one.

Translation: Temporary drawdowns don’t matter if you’re building wealth over decades.

The 85-10-5 Model is built for this. You buy in tranches precisely because you can’t time the bottom. Some purchases will be “early.” That’s fine. The system captures the recovery regardless.

2022: Why the System Also Protects You from False Alarms

Not every drop is a buying opportunity.

In 2022, the S&P dropped 25% peak to trough. The system would have triggered at -20%.

But this was a slow grind down, not a crash:

• January 2022: 4,800
• June 2022: 3,636 (-24%)
• October 2022: 3,577 (-25%)

If you bought at -20% (around 3,840), you’d be underwater for months.

But here’s the thing: The system still worked.

You bought at -20%. You held. By January 2024, the market was back to 4,800. Your investment made money.

The system doesn’t promise instant profits. It promises you capture recovery, which always comes eventually.

How Much Cash Should You Keep for Market Crashes?

This depends on your portfolio size and risk tolerance. Here’s the framework:

Early Career ($100K-200K net worth)

• Tier 2 (opportunity fund): $10K-20K
• Tier 3 (dry powder): $5K

Why so small? Because your income is your primary wealth engine. You’re building the portfolio. Small opportunity funds are fine.

Mid Career ($500K-$1M net worth)

• Tier 2: $50K-100K
• Tier 3: $25K-50K

This is the sweet spot. You have enough dry powder to make real money on crashes, but not so much that you’re sacrificing returns holding cash.

High Earner ($1M-3M net worth)

• Tier 2: $100K-300K
• Tier 3: $50K-150K

At this level, opportunity funds can generate six-figure gains in major crashes. Worth the drag.

Very High Net Worth ($3M+)

• Tier 2: $300K-500K
• Tier 3: $150K-250K

You can deploy massive capital in crashes. This is how wealthy investors in Greenwich and Atherton got richer during 2020 and 2008—they had dry powder when everyone else was tapped out.

Common Objections (And Why You’re Wrong)

“I’m Losing Returns Holding Cash”

Yes. You’re earning 5% on cash instead of 10% on stocks.

But you’re buying insurance. Most investors optimize for bull markets. Smart investors optimize for crashes.

During the 2020 crash, someone with $100K in cash put it to work at -30% and made 75% returns in 18 months.

That’s 7.5 years worth of stock market returns captured in 18 months.

You “lose” 5% annually holding cash. You gain 75% when you execute. The math works.

“What If the Crash Never Comes?”

Crashes come. Always.

Since 1950:

• 20%+ corrections: Every 3-5 years on average
• 30%+ crashes: Every 7-10 years
• 40%+ crashes: Every 15-20 years

You will see multiple 20%+ drops in your investing lifetime. Guaranteed.

The only question is: Will you have capital to deploy?

“I Can’t Time the Bottom”

You don’t need to.

The system doesn’t try to time the bottom. It invests in tranches as the market falls.

You’ll buy some “too early” (market keeps falling). You’ll buy some “too late” (market already recovering). On average, you’ll capture the bulk of the recovery.

Average beats perfect every time in investing.

“Why Not Just Stay 100% Invested and DCA?”

Here’s the honest answer:

Mathematically, on a spreadsheet, staying 100% invested beats the 85-10-5 Model.

The market goes up in roughly 74% of years. Holding 10-15% cash creates “cash drag”—you miss compound growth during bull markets. Over a 30-year period with no behavioral errors, 100% invested wins.

But spreadsheets don’t feel fear.

When your $1M portfolio drops to $600K in six weeks, human psychology breaks. You panic. You sell. You lock in losses. You miss the recovery.

The 85-10-5 Model isn’t about beating the market on paper. It’s about Behavioral Insurance.

You willingly accept a slight cash drag during bull markets (~0.5-1% annual underperformance) to buy the psychological superpower of being a buyer when everyone else is panicking.

The trade-off:

Person A: 100% Invested Always

• Bull markets: Captures full upside
• Crashes: Watches portfolio collapse, emotionally paralyzed, high risk of panic-selling
• Long-term result: Either captures full recovery (if they hold through fear) OR destroys wealth by selling low

Person B: 85-10-5 Model

• Bull markets: Slight underperformance from cash drag (~0.5-1%/year)
• Crashes: Transforms terror into mechanical buying, invests at discounts, captures oversized recovery gains
• Long-term result: Consistent wealth building, sleeps at night, never panic-sells

The math says Person A wins. Human behavior says Person A usually destroys themselves.

The 85-10-5 Model is the only way most humans actually survive crashes without capitulating. It transforms a terrifying crash into a mechanical shopping spree.

You’re not optimizing for spreadsheet returns. You’re optimizing for not blowing up your life savings when CNBC says the world is ending.

The Psychological Edge: Why Systems Beat Emotions

In March 2020, I had $150K in cash. The system said deploy.

My brain said: “What if it drops more? What if this is 2008 and we’re stuck for years? What if COVID is worse than we think?”

I deployed anyway. Not because I was confident. Because the system said so.

That $150K turned into $240K in 18 months.

The system was right. My emotions were wrong.

This is the power of mechanical rules. You don’t have to “feel good” about deploying. You just have to follow the system.

When everyone is panicking, you’re calm. Not because you’re smarter. Because you have a plan.

Why High Earners Fail at This

In hiring and compensation, I’ve seen high earners with $1M+ portfolios completely unable to act during crashes.

Not because they lacked money—but because they lacked structure.

They were 100% invested. No cash reserves. No mechanical rules. When March 2020 hit, they watched from the sidelines while the opportunity passed.

The irony: They had the income to build deployment systems. They just never prioritized it.

Most high earners in the US are fully invested and have zero deployable capital when it matters most.

When Should You Buy the Dip?

Use the mechanical triggers. Never based on “feeling.”

The system activates at specific S&P 500 drop levels:

• -20%: Invest 25% of Tier 2 (testing the waters)
• -25%: Invest next 25% of Tier 2 (total 50% Tier 2 used)
• -30%: Invest remaining 50% Tier 2 + 25% Tier 3 (Tier 2 empty, entering dry powder)
• -40%+: Invest remaining 75% Tier 3 (bet the farm—happened in 2008, briefly in 2020)

Set alerts now. When they trigger, you execute. No second-guessing.

Building Your Deployment System This Month

Here’s how to set this up:

Step 1: Calculate Your Target Fund Sizes

Formula:

• Tier 2 (opportunity): 10% of investable assets
• Tier 3 (dry powder): 5% of investable assets

Example with $800K portfolio:

• Tier 2 target: $80K
• Tier 3 target: $40K
• Total cash to hold: $120K (15% of portfolio)

Step 2: Open a High-Yield Savings Account

Move your opportunity funds to a top-tier High-Yield Savings Account or a Treasury Money Market Fund.

Current options:

• HYSAs: Marcus by Goldman Sachs, Ally Bank, American Express Personal Savings
• Treasury Money Market Funds: Vanguard VMFXX, Fidelity SPAXX (currently yielding ~4.5-5%)

Don’t touch them until the system triggers.

Step 3: Set Up Automatic Alerts

Use Google Finance or your brokerage:

• Alert 1: S&P down 20% from recent high
• Alert 2: S&P down 25%
• Alert 3: S&P down 30%

When alerts trigger, you deploy according to the rules. No thinking. No waiting. Mechanical.

Step 4: Write Down Your Deployment Rules

Print this and tape it somewhere visible:

S&P -20%: Deploy 25% of Tier 2
S&P -25%: Deploy next 25% of Tier 2
S&P -30%: Deploy remaining 50% of Tier 2 + 25% of Tier 3
S&P -40%: Deploy remaining 75% of Tier 3

When the crash comes, you won’t remember the rules. You’ll panic. That’s why you write them down now.

Step 5: Fund the Accounts Over 12 Months

Don’t pull money out of stocks to create the opportunity fund. Build it over time.

Month 1-12: Save 10-15% of income to HYSA

By month 12, you’ll have $80K-120K ready to put to work.

Then you wait. The crash will come. It always does.

What Should You Buy During a Market Crash?

Keep it simple. Don’t get cute. Crashes are for buying broad market exposure, not picking winners.

Core Holding: Total Stock Market Index

90% of your deployment should go here:

• Vanguard: VTI (ETF) or VTSAX (mutual fund)
• Fidelity: FZROX
• Schwab: SCHB

These track the entire US stock market. When the market recovers, you recover.

Optional: Small-Cap Value (10%)

If you want to add a tilt for higher returns:

• Vanguard Small-Cap Value: VBR
• iShares Russell 2000 Value: IWN

Small-cap value historically outperforms in recoveries. But it’s optional. Total market is fine.

Do NOT Buy:

• Individual stocks (you’re not that smart)
• Sector ETFs (you don’t know which sector will lead)
• Leveraged ETFs (you’ll get destroyed on volatility)
• Crypto (not the same as stocks, different risk profile)

Crashes are for buying broad market exposure, not picking winners.

The Next Crash Will Come

I don’t know when. Neither do you.

Could be 2027. Could be 2029. Could be next month if something breaks in commercial real estate or if the AI bubble pops.

But it’s coming.

And when it does, you’ll be in one of three groups:

Group 1: Panic-sells and locks in losses
Group 2: Talks about “buying the dip” but has no cash
Group 3: Deploys $50K-200K and captures the recovery

Group 3 doesn’t win because they’re smarter. They win because they had a system.

Build The 85-10-5 Deployment Model now. Fund the opportunity accounts. Write down the rules.

When the crash comes, you’ll be ready.

Everyone talks about buying the dip. Almost nobody is built to do it. Systems—not intentions—decide who wins.

Buy the Dip: Summary

“Buy the dip” requires deployable capital and mechanical rules. The 85-10-5 Deployment Model (85% always invested, 10% opportunity fund, 5% dry powder) lets you capture crashes without trying to time bottoms.

While staying 100% invested wins on a pure spreadsheet, it fails in human reality. The 85-10-5 system provides the behavioral insurance necessary to survive a 30-year timeline with multiple crashes—preventing catastrophic panic-selling and ensuring you sleep at night.

Next in the series: Part 6: The Illusion of “Tax Hacks”—Why Optimization Is Not a Strategy

(Link will be live after Post #6 publishes)

Action Items

This month:

1. Calculate target fund sizes: 10% opportunity fund + 5% dry powder based on your current portfolio.
2. Open high-yield savings account: Marcus, Ally, or AmEx. Set up automatic monthly deposits.
3. Create deployment alerts: Set S&P alerts at -20%, -25%, -30% in your brokerage or Google Finance.
4. Write down deployment rules: Print the system. Tape it somewhere visible. When the crash comes, follow it mechanically.

The crash is coming. The only question is whether you’ll be ready.

This is Part 5 of the Rational Compounding Framework. Read Part 1: The Math of Wealth, Part 2: The 3 Engines, Part 3: Why High Earners Fail, Part 4: The RSU Trap, or see the complete framework.