How Do Concrete Vaults Actually Work?

You deposit into a vault. You receive shares. Your balance grows over time.

Simple on the surface — but if you’ve ever looked at metrics like eRate or NAV, you’ve probably asked yourself:

“What do these actually mean?”

This article breaks it all down — clearly, intuitively, and without unnecessary jargon — so you can understand exactly what’s happening under the hood when you use a Concrete vault.

1. Start With the User Perspective

Let’s walk through a typical experience.

You deposit your assets into a Concrete vault. In return, you receive vault shares.

After that, you might notice:

• Your share balance stays the same
• But the value of those shares increases over time
• You see metrics like eRate and NAV

At first glance, it can feel abstract.

You’re not seeing tokens “increase” like traditional yield farming — so where is the yield actually coming from?

To understand that, we need to start with ownership.

2. Vault Shares & eRate — A Simple Mental Model

Think of a vault like a jar of assets.

When you deposit, you’re not just putting assets into the jar — you’re receiving a slice of that jar.

Vault Shares = Ownership

Each share represents your portion of the vault.

• If you own 10% of shares → you own 10% of the vault
• If the vault grows → your portion grows with it

Your number of shares doesn’t change — your value per share does.

eRate = Value Per Share

The eRate tells you how much each share is worth.

• At deposit: 1 share = $1 (example)
• Later: 1 share = $1.10

You still have the same number of shares — but now each share is worth more.

That’s how your balance grows.

3. NAV — The Total Pool (Without the Jargon)

Now let’s simplify NAV (Net Asset Value).

NAV = Total Value of the Vault

It represents:

• All assets deposited
• Plus any yield generated
• Minus any costs or fees

Think of it as:

NAV = the total size of the jar

Connecting NAV and Shares

• NAV = the whole vault
• Shares = your slice

If NAV increases, but your number of shares stays the same:

→ Your slice becomes more valuable

That’s the core mechanism behind vault growth.

4. Why Time Matters (More Than You Think)

This is where many users misunderstand vaults.

Vaults are not designed for short-term extraction.

Why?

Because yield generation takes time.

1. Strategies Need Time to Work

Capital is deployed into opportunities that generate returns gradually — not instantly.

2. There Are Real Costs

• Gas fees
• Execution costs
• Rebalancing overhead

Short-term deposits may not fully offset these costs.

3. Stability Over Speed

Vaults are designed to:

• Smooth volatility
• Avoid rushed exits
• Protect long-term participants

A Simple Analogy: The Garden

Think of a vault like a garden.

• You plant seeds (deposit)
• The system nurtures them (strategies)
• Growth happens over time (yield)

If you pull the plant out too early, you don’t get the full harvest.

Time is what unlocks value.

5. Active Management — Not Just Sitting Idle

A key misconception: vaults are passive.

Concrete vaults are not.

They actively manage capital behind the scenes.

What’s Actually Happening?

Your funds are:

• Deployed across multiple strategies
• Rebalanced as opportunities change
• Adjusted based on market conditions

Analogy: The Chef

Think of the vault like a chef managing ingredients.

• Not all ingredients are used at once
• Some are better in certain conditions
• The chef adjusts the recipe over time

You’re not just holding assets — you’re participating in a system that is constantly optimizing them.

6. Connecting It All to Outcomes

Now let’s tie everything together.

How Growth Actually Happens

• Compounding → yield is reinvested into the vault
• Rebalancing → capital moves to better opportunities
• Active management → strategies adapt over time

What This Means for You

You’re not just earning yield.

You’re benefiting from:

• How efficiently capital is deployed
• How well strategies are executed
• How consistently value is compounded

And most importantly:

The longer you stay, the more these advantages compound.

7. A Simple Mental Model (Keep This)

If you remember nothing else, remember this:

• Vault = pooled capital system
• Shares = your ownership
• eRate = value of your shares
• NAV = total vault value
• Time = growth driver
• Management = optimization layer

Final Thought

Concrete vaults aren’t just about earning yield.

They’re about structuring capital in a way that makes yield more efficient, more consistent, and more scalable over time.

So when you deposit, you’re not just “earning” —

You’re plugging into a system designed to grow.

🚨 Explore Concrete at app.concrete.xyz 🚨