How Do Concrete Vaults Actually Work?

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Let’s start simple.

You open the app, deposit into a vault, and suddenly you see things like vault shares, eRate, and NAV. Your balance starts changing over time.

But… what’s actually going on?

If you’re new to DeFi vaults — or even just new to Concrete — this can feel abstract fast. So let’s break it down in a way that actually makes sense.

1. From Your Perspective as a User

Imagine this:

You deposit $1,000 into a Concrete vault.

Instead of just seeing “$1,000 sitting there,” you receive vault shares. These shares represent your ownership in the vault.

From that point on, your balance doesn’t just sit still — it moves. You’ll see metrics like:

• eRate
• NAV
• Your share balance

And naturally, the question becomes:

What do these numbers actually mean for my money?

2. Vault Shares & eRate (Think “Slices of a Pie”)

A simple way to understand vault shares:

👉 The vault is a big pie
👉 Your shares = your slices of that pie

When you deposit, you’re not just putting money in — you’re buying a portion of the vault.

Now enter eRate.

• eRate = the value of each share
• If eRate goes up → each slice of your pie is worth more

So even if your number of shares stays the same, their value increases over time.

This is how growth shows up.

3. NAV (The Size of the Whole Pie)

NAV (Net Asset Value) is simply:

👉 The total value of everything inside the vault

No complicated math needed.

• NAV = total pool of assets
• Shares = how that pool is divided

So:

• If NAV grows → the vault becomes more valuable
• If you hold shares → your portion grows with it

Think of it like this:

NAV is the size of the pie,
shares are your slices.

When the pie gets bigger, your slices are worth more — even if you didn’t add anything new.

4. Why Time Matters (This Isn’t Instant Yield)

This is where most people get it wrong.

Concrete vaults aren’t built for quick flips — they’re designed to grow over time.

Why?

Because:

• Strategies need time to generate yield
• There are real costs (gas, execution, rebalancing)
• Capital is deployed across opportunities that play out over time
• Short-term fluctuations happen

A good analogy:

👉 It’s more like planting a garden than trading a coin.

You don’t plant seeds and expect a harvest the next day. But give it time — and growth compounds.

The longer you stay, the more the system can actually work for you.

5. Not Passive — Actively Managed

Another key piece:

Concrete vaults are actively managed DeFi systems.

Your funds aren’t just sitting idle.

They are:

• Deployed across strategies
• Rebalanced when conditions change
• Optimized for better opportunities

Think of it like a skilled operator running a machine behind the scenes.

Or a chef adjusting ingredients as conditions change.

👉 The vault is constantly working — even when you’re not.

6. How This Translates Into Results

Now tie it all together:

• Automated compounding grows value over time
• Rebalancing captures better yield opportunities
• Active management improves efficiency
• Time allows all of this to actually play out

So your gains don’t just come from “yield existing”…

They come from how that yield is generated, optimized, and compounded.

That’s the difference with managed DeFi.

7. The Simple Mental Model

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 engine
• Management = optimization layer

Put together:

👉 You own a piece of a system that actively deploys capital, compounds returns, and improves over time.

Explore Concrete at app.concrete.xyz 🚀