How High Schoolers Can Start Investing with Just $100 in 2025 Let’s be real — most high schoolers spend $100 on sneakers, fast food, or phone accessories without thinking twice. But what if that same $100 could make money instead of disappear in a day? Welcome to the world of teen investing, where a little...
Teacher TrainingHow High Schoolers Can Start Investing with Just $100 in 2025
How High Schoolers Can Start Investing with Just $100 in 2025
Let’s be real — most high schoolers spend $100 on sneakers, fast food, or phone accessories without thinking twice.
But what if that same $100 could make money instead of disappear in a day?
Welcome to the world of teen investing, where a little discipline (and a few great apps) can turn spare cash into a starter portfolio — and a mindset shift that lasts a lifetime.
Why Start Now?
Money habits start early. The average American doesn’t invest until their late 20s — and that delay costs them thousands in missed growth.
If a 17-year-old invests $100 and keeps adding just $25 a month, by age 30 they could have over $7,000, assuming modest returns.
It’s not about being rich overnight — it’s about building financial muscle memory.
What Teens Can Invest In
Before we get into apps, let’s talk basics.
Teens (with or without a guardian) can invest in:
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Index funds – safer, diversified investments that track the market.
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ETFs (Exchange-Traded Funds) – great for low-cost growth.
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Fractional stocks – buy pieces of major companies like Apple or Tesla.
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High-yield savings & micro-investing portfolios – for slow, steady growth.
The goal isn’t to gamble. It’s to learn how money moves — and how to make it move for you.
Top Investing Apps for Teens in 2025
Here’s what’s hot right now:
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Greenlight Invest – perfect for families; lets parents approve trades and teach saving habits.
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Fidelity Youth Account – free for teens, no account minimum, with built-in education modules.
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Acorns Early – automatically rounds up purchases to invest spare change.
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Stash – allows fractional investing with guidance on diversification.
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Public – blends social media and investing for young adults who like to learn by watching others.
Every one of these apps helps you learn without the pressure of thousands of dollars at stake.
The $100 Rule
I tell my students this all the time:
“If you can spend it, you can save it.”
$100 isn’t much, but it’s enough to start the habit.
Break it like this:
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$40 → Invest in fractional stocks (Apple, Amazon, or an ETF)
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$30 → Deposit into a high-yield savings account
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$20 → Add to a monthly contribution plan
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$10 → Keep as emergency cash
That balance between investing, saving, and spending creates healthy financial rhythm — not just risk-taking.
Turning Investing Into a Learning Experience
Here’s where learning meets life.
Have teens track their investments once a week and note:
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What went up or down
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Why that might’ve happened
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What they feel about it
That reflection part builds financial awareness — not just wealth.
Parents and teachers can even turn this into a project or discussion:
“What would you do if your favorite brand’s stock dropped 10%?”
That’s when real financial literacy begins.
The Power of Education
Investing isn’t just about apps — it’s about mindset.
That’s why I designed the Financial Literacy Activity Workbook for teens and homeschool programs.
It teaches budgeting, investing, and saving in bite-sized, engaging lessons — not boring lectures.
Because the sooner students understand money, the sooner they can start shaping their own financial story.
Final Thought
If you can teach a teen how to budget, you give them control.
If you teach them how to invest — even with $100 — you give them freedom.
So start small. Stay consistent. Watch it grow.
And if you’re ready to make financial literacy part of your student’s real-world education, check out the Financial Literacy Activity Workbook or grab the High School Bundle for everything from algebra to investing.